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	ACCESSION	PLANT NAME	TAXONOMY	ORIGIN	GENEBANK	AVAILABILITY	RECEIVED	SOURCE TYPE	SOURCE DATE	COLLECTION SITE	COORDINATES	ELEVATION	HABITAT	IMPROVEMENT LEVEL	NARRATIVE
0	PI 672501	'PA11-8'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2014	DEVELOPED						Cultivar	Off PVP in 2035	1919834	PI 672501
1	PI 667665	'PA 10-14'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2013	DEVELOPED						Cultivar	Certificate abandoned	1908731	PI 667665
2	PI 667666	'PA 10-23'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2013	DEVELOPED						Cultivar	Certificate abandoned	1908732	PI 667666
3	PI 667667	'PA 10-4'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2013	DEVELOPED						Cultivar	Certificate abandoned	1908733	PI 667667
4	PI 667668	'PA 10-18'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2013	DEVELOPED						Cultivar	Off PVP in 2034	1908734	PI 667668
5	PI 667669	'PA 10-16'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2013	DEVELOPED						Cultivar	Off PVP in 2034	1908735	PI 667669
6	PI 665237	'PA 11-3'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2012	DEVELOPED						Cultivar	Certificate abandoned	1901738	PI 665237
7	PI 665238	'PA 11-2'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2012	DEVELOPED						Cultivar	Certificate abandoned	1901739	PI 665238
8	PI 665239	'PA 11-4'	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	2012	DEVELOPED						Cultivar	Certificate abandoned	1901740	PI 665239
9	PI 654078	'YX-5-03-blr-02'	Parthenium argentatum A. Gray	United States	PVPO	Not Available	2008	DEVELOPED						Cultivar		1778776	PI 654078
10	PI 654079	'YX-5-03-BLR-01'	Parthenium argentatum A. Gray	United States	PVPO	Not Available	2008	DEVELOPED						Cultivar		1778777	PI 654079
11	PI 599674	AZ-1	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1997	DEVELOPED						Breeding material	Compared in field tests to the released lines N565 and 11591 after 2 and 3 years of growth. Produced more rubber after 2 and 3 years and more biomass after 3 years than the checks. Estimated ploidy: 3x, 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1549987	PI 599674
12	PI 599675	AZ-2	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1997	DEVELOPED						Breeding material	Compared in field tests to the released lines N565 and 11591 after 2 and 3 years of growth. Produced more biomass after 2 years and grew faster than the checks. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1549988	PI 599675
13	PI 599676	AZ-3	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1997	DEVELOPED						Breeding material	Compared in field test to the released lines N565 and 11591 after 2 and 3 years. Produced the highest biomass after 3 years of all lines. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1549989	PI 599676
14	PI 599677	AZ-4	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1997	DEVELOPED						Breeding material	Compared in field tests to the released lines N565 and 11591 after 2 and 3 years of growth. Released for faster regrowth after an initial harvest.	1549990	PI 599677
15	PI 599678	AZ-5	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1997	DEVELOPED						Breeding material	Compared in field tests to the released lines N565 and 11591 after 2 and 3 years of growth. Released for faster regrowth after an initial harvest. More uniform in plant traits than AZ-4. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1549991	PI 599678
16	PI 599679	AZ-6	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1997	DEVELOPED						Breeding material	Compared in field tests to the released lines N565 and 11591 after 2 and 3 years of growth. Produced more rubber after 2 and 3 years than all but one of the other lines. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1549992	PI 599679
17	PI 478639	593	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Cultivar	Developed by International Rubber Company. Plants uniform. Used as check variety. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373575	PI 478639
18	PI 478640	11591	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 3x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373576	PI 478640
19	PI 478641	11600	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373577	PI 478641
20	PI 478642	11604	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373578	PI 478642
21	PI 478643	11605	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373579	PI 478643
22	PI 478644	11609	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 3x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373580	PI 478644
23	PI 478645	11619	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373581	PI 478645
24	PI 478646	11633	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Other identification A48124. Rubber yield 8.22 percent. Plant vigor low. Well adapted to hot, dry climates. Estimated ploidy: 3x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373582	PI 478646
25	PI 478647	11634	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	High rubber-yielding (9.12 percent) selection. Well adapted to hot, dry climates. Estimated ploidy: 4x (Thompson, A.E., and D.T. Ray. 1988. Breeding guayule. Plant Breed. Rev. 6:93-165)	1373583	PI 478647
26	PI 478648	11635	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Highest rubber-yielding selection in trials. Rubber content 9.42 percent. Highly resistant to charcoal rot (Sclerotium bataticola). Estimated ploidy: 4x (Thompson, A.E., and D.T. Ray. 1988. Breeding guayule. Plant Breed. Rev. 6:93-165)	1373584	PI 478648
27	PI 478649	11646	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Other identification A48121. Plants outyielded check varieties PI 478639 and PI 478660 at Salinas.	1373585	PI 478649
28	PI 478650	11693	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Other identification N563. High rubber-yielding (9.27 percent) selection. Well adapted to hot, dry climates. Highly resistant to charcoal rot (Sclerotium bataticola). Estimated ploidy: 4x (Thompson, A.E., and D.T. Ray. 1988. Breeding guayule. Plant Breed. Rev. 6:93-165)	1373586	PI 478650
29	PI 478651	11701	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	High rubber-yielding (9.12 percent) selection. Well adapted to hot, dry climates.	1373587	PI 478651
30	PI 478652	12229	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Other identification S2636-168. High rubber-yielding (6.80 percent) selection. Well adapted to hot, dry climates.	1373588	PI 478652
31	PI 478653	12231	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Other identification A48115. High rubber-yielding (6.68 percent) selection. Well adapted to hot, dry climates. Estimated ploidy: 3x, 5x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373589	PI 478653
32	PI 478654	N396	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	High rubber-yielding (8.98 percent) selection. Vigor less at Salinas than at Shafter. Highly resistant to charcoal rot (Sclerotium bataticola). Highly susceptible to wilt (Verticillium).	1373590	PI 478654
33	PI 478655	N565	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	High rubber-yielding (9.42 percent) selection. Well adapted to hot, dry climates. Estimated ploidy: 3x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373591	PI 478655
34	PI 478656	N565-II	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 3x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373592	PI 478656
35	PI 478657	N566	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 5x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373593	PI 478657
36	PI 478658	N575	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Plants outyielded check varieties PI 478639 and PI 478660 at Salinas. Estimated ploidy: 3x, 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373594	PI 478658
37	PI 478659	N576	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Other identification A48116. Plants outyielded check varieties PI 478639 and PI 478660 at Salinas.	1373595	PI 478659
38	PI 478660	4265-X	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Single superior selection from A4265. Plants highly variable. Used as check variety. Resistant to charcoal rot (Sclerotium bataticola). Estimated ploidy: 4x (Thompson, A.E., and D.T. Ray. 1988. Breeding guayule. Plant Breed. Rev. 6:93-165)	1373596	PI 478660
39	PI 478661	4265-XF	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Selection from PI 478660. Plants vigorous. Yield of rubber and dry matter high.	1373597	PI 478661
40	PI 478662	A48118	Parthenium argentatum A. Gray	Mexico	PARL	Not Available	1983	COLLECTED						Breeding material	Rubber content 5.88 percent. Well adapted to hot, dry climates.	1373598	PI 478662
41	PI 478663	W6 429	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Chromosome number 36. Estimated ploidy: 2x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373599	PI 478663
42	PI 478664	CAL-3	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants diploid. Source for early rubber production. Estimated ploidy: 2x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373600	PI 478664
43	PI 478665	CAL-4	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants highly variable in morphological characteristics and chromosome number. Resistant to wilt (Verticillium albo-atrum). Estimated ploidy: 3x, 5x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1373601	PI 478665
44	PI 478666	CAL-1	Parthenium hybr.	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants vigorous, large, productive, and extremely variable in height, spread, branching, leaf characteristics, flowering date and degree, head size, and seed size and production. Resistant to wilt (Verticillium albo-atrum).	1373602	PI 478666
45	PI 478667	CAL-2	Parthenium hybr.	California, United States	PARL	Not Available	1983	DONATED	05/1983					Breeding material	Plants vigorous, smaller than PI 478666, extremely variable in morphological characteristics. Resistant to wilt (Verticillium albo-atrum).	1373603	PI 478667
46	PI 441173		Parthenium argentatum A. Gray	United States		Historic	1980	COLLECTED	12/1978	Pecos Co., Texas		909			Collected by Smith.	1336109	PI 441173
47	PI 167286		Parthenium argentatum A. Gray	Maryland, United States		Historic	1948	DONATED	08/26/1948							1569045	PI 167286
48	PI 152352		Parthenium argentatum A. Gray	Maryland, United States		Historic	1945	COLLECTED								1889872	PI 152352
49	PI 146554		Parthenium argentatum A. Gray	California, United States		Historic	1943	COLLECTED								1879709	PI 146554
50	PI 101067	No. 140719	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788690	PI 101067
51	PI 101068	No. 140720	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788691	PI 101068
52	PI 101069	No. 140721	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788692	PI 101069
53	PI 101070	No. 140722	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788693	PI 101070
54	PI 101071	No. 140723	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788694	PI 101071
55	PI 101072	No. 140724	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788695	PI 101072
56	PI 101073	No. 140725	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788696	PI 101073
57	PI 101074	No. 140726	Parthenium argentatum A. Gray	Unknown		Historic	1932	COLLECTED		Union of Soviet Socialist Republics						1788697	PI 101074
58	PI 51700		Parthenium argentatum A. Gray	Texas, United States		Historic	1920	COLLECTED								1506041	PI 51700
59	PI 47955		Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1919	COLLECTED								1503053	PI 47955
60	PI 34413		Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1912	COLLECTED								1514531	PI 34413
61	PI 19298		Parthenium argentatum A. Gray	District of Columbia, United States		Historic	1906	COLLECTED								1532441	PI 19298
62	PI 19174		Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1906	COLLECTED								1532366	PI 19174
63	W6 62097	CBG-10926	Parthenium integrifolium L.		W6		2024									2168895	W6 62097
64	W6 61386	CBG- 10811	Parthenium integrifolium L.	Illinois, United States	W6		2023							Wild material		2142268	W6 61386
65	W6 54403	AZ040-243	Parthenium incanum Kunth	Arizona, United States	W6		2018							Wild material	Parthenium incanum	1965120	W6 54403
66	W6 53807	NM080-60	Parthenium incanum Kunth	New Mexico, United States	W6		2018							Wild material		1964385	W6 53807
67	W6 53481	NM030-79	Parthenium incanum Kunth	New Mexico, United States	W6		2018							Wild material		1958216	W6 53481
68	W6 53093	CBG-7599	Parthenium integrifolium L.	Illinois, United States	W6	Not Available	2017							Wild material		1954844	W6 53093
69	NA 84524	NA 84524	Parthenium integrifolium L.		NA	Not Available	2016							Cultivated material	Full name as recorded at U.S. National Arboretum: Parthenium integrifolium. Acquired for the Frienship Garden renovation; received somewhat apart from other plants, and the source information was lost prior to rediscovery and accessioning. Information may turn up later.	2153678	NA 84524
70	W6 50733	CBG2014-3285	Parthenium integrifolium L.	Illinois, United States	W6	Not Available	2015							Wild material		1932021	W6 50733
71	PARL 935	PARL 935	Parthenium argentatum A. Gray		PARL	Not Available	2014	DONATED								1919322	PARL 935
72	W6 42876	MSB210351	Parthenium hysterophorus L.	Texas, United States	W6		2011							Wild material		1895334	W6 42876
73	W6 42611	NM930-133	Parthenium incanum Kunth	New Mexico, United States	W6		2011							Wild material		1893514	W6 42611
74	NA 84515	NA 84515	Parthenium integrifolium L.		NA	Not Available	2011									1950599	NA 84515
75	PARL 815	CFS-20	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2009	COLLECTED	10/29/2008	Pecos County, Texas. Tunas Peak (also known as Squaw Teat Mesa), Bakersfield, Texas along IH-10 north service road.	30.53453000, -102.19245000	2647	Seeds were collected at a Shallow Limestone site and in association with mesquite, sideoats grama, creosotebush, croton, plains bristlegrass, yucca, and perennial broomweed.	Wild material		1795024	PARL 815
76	PARL 816	CFS-21	Parthenium argentatum A. Gray	Texas, United States	PARL	Not Available	2009	COLLECTED	10/29/2008	Pecos County, Texas. Tunas Peak (also known as Squaw Teat Mesa), Bakersfield, Texas along IH-10 north service road.	30.53453000, -102.19245000	2647	Seeds were collected at a Shallow Limestone site in association with mesquite, sideoats grama, creosotebush, croton, plains bristlegrass, yucca, and perennial broomweed.	Wild material		1795029	PARL 816
77	PARL 818	CFS-22	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2009	COLLECTED	10/29/2008	Pecos County, Texas. Roadside 9.0 miles north of Fort Stockton on HWY 285.	30.57485000, -102.59851000	2925	Seeds were collected at a Limestone Outcrop site in association with creosotebush, tarbush, sideoats grama, paperflower; and Acacia spp.	Wild material		1795180	PARL 818
78	PARL 819	CFS-23	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2009	COLLECTED	10/30/2008	Pecos County, Texas. Roadside, south service road, Hovey Road Exit, west of Fort Stockton on IH-10.	30.54867000, -103.23824000	3135	Seeds were collected at a Shallow Limestone site in association with creosotebush, mesquite, Setaria spp., Aristida spp., paperflower, and croton.	Wild material		1795182	PARL 819
79	PARL 820	CFS-24	Parthenium argentatum A. Gray	Texas, United States	PARL	Not Available	2009	COLLECTED	10/31/2008	Pecos County, Texas. Texas Proving Ground, 12 miles west of Fort Stockton on IH-10.	30.54867000, 103.06883000	3022	Seeds were collected at a Gravelly Loam site in old Mexican Bulk planting and in association with mesquite, mariola, paperflower, croton, and creosotebush.	Wild material		1795184	PARL 820
80	NA 75602	NA 75602	Parthenium integrifolium L.		NA	Not Available	2006									1950720	NA 75602
81	PARL 805	CFS18-2005	Parthenium argentatum A. Gray	Texas, United States	PARL	Not Available	2005	COLLECTED	12/01/2005	Collected at Texas Proving Ground, 12 miles west of Fort Stockton, north of IH-10. Collected in Mexican Bulk Guayule Stand.	30.91444444, -103.58388889	931	Gravelly loam soil. Growing in association with Parthenium incanum.	Wild material	The Firestone Natural Rubber and Latex Company (a division of the Firestone Tire and Rubber Company) established 180 acres of guayule in 1978-1981 by transplants originating from several seed sources. Approximately 15 acres contained 23 USDA and Anderson lines, while 163 acres were devoted to stands derved from bulk seed collected in native populations of northcentral Mexico, and from bulk collections at the Los Angles State and County Arboretum, Arcadia, CA. About 2 acres were devoted to research plots. Firestone closed the site in 1981, and the Texas Agricultural Experiment Station leased the area in 1983 and conducted research there until 1997. The research centered on direct seeding, irrigation methods, harvesting techniques, greenhouse studies, pest control, regional variety trials, and seed harvesting and cleaning.	1688618	PARL 805
82	PARL 806	CFS19-2005	Parthenium confertum A. Gray	Texas, United States	PARL	Not Available	2005	COLLECTED	12/01/2005	Collected at the Desert Pines Golf Course adjacent to Fort Stockton Airport off Hwy 285. Collected adjacent to green #6 in right rough.	30.91111111, -102.90305556	909	Gravelly loam soil. Growing in association with creosote bush, mesquite, Acacia spp., and P. incanum.	Wild material		1688619	PARL 806
83	PARL 788	CFS01-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/25/2005	13.3 miles north of Fort Stockton on Hwy 285	30.99277778, -103.05555556	823	Associated vegetation: mesquite, creosote bush, tarbush, paper-flower, four-wing saltbush. Soil: limestone outcropping	Wild material		1685088	PARL 788
84	PARL 789	CFS02-2005	Parthenium hysterophorus L.	Texas, United States		Historic	2005	COLLECTED	10/25/2005	13.3 miles north of Fort Stockton on Hwy 285	30.99277778, -103.05555556	823	Associated vegetation: mesquite, creosote bush, tarbush, paper-flower, four-wing saltbush. Soil: limestone outcropping	Wild material		1685089	PARL 789
85	PARL 790	CFS03-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/25/2005	11.3 miles north of Fort Stockton on Hwy 285	30.97722222, -103.02666667	872	Associated vegetation: mesquite, creosote bush, tarbush, paper-flower, four-wing saltbush. Soil: limestone outcropping	Wild material		1685090	PARL 790
86	PARL 791	CFS04-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/25/2005	9.0 miles north of Fort Stockton on Hwy 285	30.95805556, -102.99750000	889	Associated vegetation: mesquite, creosote bush, tarbush, croton, Verbena sp.. Soil: limestone outcropping	Wild material		1685091	PARL 791
87	PARL 792	CFS05-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/25/2005	4.3 miles north of Fort Stockton on Hwy 285	30.91694444, -102.93444444	912	Associated vegetation: creosote bush, tarbush, croton, Aristida sp., Acacia sp.. Soil: limestone outcropping	Wild material		1685092	PARL 792
88	PARL 793	CFS06-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/25/2005	12 miles west of Fort Stockton north of Interstate 10 in the abandon Firestone Guayule Plantation	30.91444444, -103.11277778	931	Associated vegetation: Parthenium argentatum. Soil: gravelly loam	Wild material	The Firestone Natural Rubber and Latex Company (a division of the Firestone Tire and Rubber Company) established 180 acres of guayule in 1978-1981 by transplants originating from several seed sources. Approximately 15 acres contained 23 USDA and Anderson lines, while 163 acres were devoted to stands derved from bulk seed collected in native populations of northcentral Mexico, and from bulk collections at the Los Angles State and County Arboretum, Arcadia, CA. About 2 acres were devoted to research plots. Firestone closed the site in 1981, and the Texas Agricultural Experiment Station leased the area in 1983 and conducted research there until 1997. The research centered on direct seeding, irrigation methods, harvesting techniques, greenhouse studies, pest control, regional variety trials, and seed harvesting and cleaning.	1685093	PARL 793
89	PARL 794	CFS07-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/25/2005	Service road off of Hovey road. Hovey road exit is west of Fort Stockton on Inerstate 10	30.95055556, -103.39777778	969	Associated vegetation: mesquite, creosote bush, croton, paper-flower, Acacia sp.. Soil: limestone outcropping	Wild material		1685094	PARL 794
90	PARL 795	CFS08-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/26/2005	57 miles east of Alpine between Marathon and Sanderson on Hwy 90	30.17805556, -102.80527778	1198	Associated vegetation: mesquite, croton, bristle grass, cedar, horehound, Acacia sp.. Soil: shallow limestone	Wild material		1685095	PARL 795
91	PARL 796	CFS09-2005	Parthenium argentatum A. Gray	Texas, United States		Historic	2005	COLLECTED	10/26/2005	Tunas Peak (also known as Squaw Teat Mesa), Bakersfield, Texas	30.89083333, -102.32083333	805	Associated vegetation: mesquite, croton, broom-weed, Yucca, perennial grama grasses. Soil: shallow limestone	Wild material		1685096	PARL 796
92	PARL 797	CFS10-2005	Parthenium confertum A. Gray	Texas, United States		Historic	2005	COLLECTED	10/27/2005	1.4 miles south of northern most entrance to Big Bend National Park on Hwy 385. Plants were just off the parking lot of the vistors center.	29.66111111, -103.17361111	873	Associated vegetation: creosote bush, broomweed, Acacia sp., misc. grasses. Soil: shallow gravelly	Wild material		1685097	PARL 797
93	PARL 798	CFS11-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/27/2005	6.4 miles south of the northern most entrance to Big Bend National Park on Hwy 385 near a concrete bridge.	29.66638889, -103.14305556	793	Associated vegetation: creosote bush, broomweed, four-wing saltbush. Soil: shallow gravelly	Wild material		1685098	PARL 798
94	PARL 799	CFS12-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/27/2005	24.8 miles south of the northern most entrance to Big Bend National Park on Hwy 385	29.02722222, -103.18472222	1001	Associated vegetation: creosote bush, tarbush, prickle pear. Soil: shallow gravelly	Wild material		1685099	PARL 799
95	PARL 800	CFS13-2005	Parthenium incanum Kunth	Texas, United States	PARL	Not Available	2005	COLLECTED	10/27/2005	16.2 miles west of Vistor Center at Park Headquarters in Big Bend National Park on Hwy 118	29.32555556, -103.43305556	935	Associated vegetation: creosote bush, prickle pear. Soil: shallow gravelly	Wild material		1685100	PARL 800
96	PARL 801	CFS14-2005	Parthenium incanum Kunth	Texas, United States		Historic	2005	COLLECTED	10/27/2005	16.2 miles west of Vistor Center at Park Headquarters in Big Bend National Park on Hwy 118	29.32555556, -103.43305556	935	Associated vegetation: creosote bush, prickle pear. Soil: shallow gravelly	Wild material		1685101	PARL 801
97	PARL 802	CFS15-2005	Parthenium sp.	Texas, United States		Historic	2005	COLLECTED	10/27/2005	16.2 miles west of Vistor Center at Park Headquarters in Big Bend National Park on Hwy 118	29.32555556, -103.43305556	935	Associated vegetation: creosote bush, prickle pear. Soil: shallow gravelly	Wild material		1685102	PARL 802
98	PARL 803	CFS16-2005	Parthenium argentatum A. Gray	Texas, United States	PARL	Not Available	2005	COLLECTED	10/27/2005	North of Big Bend National Park entrance/exit on Hwy 118 going to Alpine. Also north of Study Butte/Terlingua	29.55777778, -103.54722222	1051	Associated vegetation: creosote bush, Parthenium incanum. Soil: shallow limestone	Wild material		1685103	PARL 803
99	PARL 804	CFS17-2005	Parthenium argentatum A. Gray	Texas, United States	PARL	Not Available	2005	COLLECTED	10/27/2005	43.8 miles south of Alpine on Hwy 118. East side of the road on shallow limestone site.	29.69777778, -103.58388889	1145	Associated vegetation: creosote bush, Yucca, misc. grasses, Parthenium incanum. Soil: shallow limestone.	Wild material		1685104	PARL 804
100	PARL 437	AZ 0401	Parthenium incanum Kunth	Arizona, United States	PARL	Not Available	2004	COLLECTED	10/12/2004							1834108	PARL 437
101	PARL 912	146	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919279	PARL 912
102	PARL 913	146 951	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919280	PARL 913
103	PARL 914	1002 95 1	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919281	PARL 914
104	PARL 915	1003-95	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919282	PARL 915
105	PARL 916	1014 95	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919283	PARL 916
106	PARL 917	1014 95 54	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919284	PARL 917
107	PARL 918	1024 95	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919285	PARL 918
108	PARL 919	1034 04	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919286	PARL 919
109	PARL 920	1052 95	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919287	PARL 920
110	PARL 921	1053 95	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919288	PARL 921
111	PARL 922	94?	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919289	PARL 922
112	PARL 923	94 14	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919290	PARL 923
113	PARL 924	94 15	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919291	PARL 924
114	PARL 925	94 16	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919292	PARL 925
115	PARL 926	94 27	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919293	PARL 926
116	PARL 927	94 45	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919294	PARL 927
117	PARL 928	94 58	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919295	PARL 928
118	PARL 929	94 60 A	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919296	PARL 929
119	PARL 930	94 63? -1	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919297	PARL 930
120	PARL 931	94 63? -2	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919298	PARL 931
121	PARL 932	94 65	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919299	PARL 932
122	PARL 933	944 44A 20	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919300	PARL 933
123	PARL 934	12345	Parthenium sp.	California, United States	PARL	Not Available	2004	DONATED	NEAR 2004					Cultivated material		1919304	PARL 934
124	NA 68457	NA 68457	Parthenium integrifolium L.		NA	Not Available	1991							Cultivated material	Full name as recorded at U.S. National Arboretum: Parthenium integrifolium.	2148144	NA 68457
125	W6 2153	R1001	Parthenium argentatum A. Gray	Chihuahua, Mexico	PARL	Not Available	1989	COLLECTED	08/19/1976	Jimenez				Wild material		1018553	W6 2153
126	W6 2154	R1002	Parthenium argentatum A. Gray	Chihuahua, Mexico	PARL	Not Available	1989	COLLECTED	08/19/1976	Jimenez				Wild material		1018558	W6 2154
127	W6 2155	R1003	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018566	W6 2155
128	W6 2156	R1004	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018571	W6 2156
129	W6 2157	R1005	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018576	W6 2157
130	W6 2158	R1006	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018582	W6 2158
131	W6 2159	R1007	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018587	W6 2159
132	W6 2160	R1008	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018594	W6 2160
133	W6 2161	R1009	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018599	W6 2161
134	W6 2162	R1010	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018606	W6 2162
135	W6 2163	R1011	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018611	W6 2163
136	W6 2164	R1012	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018617	W6 2164
137	W6 2165	R1013	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018621	W6 2165
138	W6 2166	R1014	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1018628	W6 2166
139	W6 2167	R1015	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/21/1976	Chocolate				Wild material		1018633	W6 2167
140	W6 2168	R1016	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/21/1976	Chocolate				Wild material		1018639	W6 2168
141	W6 2169	R1017	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/21/1976	Chocolate				Wild material		1018644	W6 2169
142	W6 2170	R1018	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/21/1976	Chocolate				Wild material		1018650	W6 2170
143	W6 2171	R1019	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/21/1976	Chocolate				Wild material		1018655	W6 2171
144	W6 2172	R1020	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/22/1976	Nazas				Wild material		1018660	W6 2172
145	W6 2173	R1021	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/22/1976	Nazas				Wild material		1018665	W6 2173
146	W6 2174	R1022	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/22/1976	Nazas				Wild material		1018669	W6 2174
147	W6 2175	R1023	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/22/1976	Nazas				Wild material		1018677	W6 2175
148	W6 2176	R1024	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/23/1976	Flor de Jimulco				Wild material		1018685	W6 2176
149	W6 2177	R1025	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/23/1976	Flor de Jimulco				Wild material		1018690	W6 2177
150	W6 2178	R1026	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/23/1976	Flor de Jimulco				Wild material		1018697	W6 2178
151	W6 2179	R1027	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/23/1976	Flor de Jimulco				Wild material		1018702	W6 2179
152	W6 2180	R1028	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/24/1976	San Pedro de Gallo				Wild material		1018710	W6 2180
153	W6 2181	R1029	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/24/1976	San Pedro de Gallo				Wild material		1018715	W6 2181
154	W6 2182	R1030	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/24/1976	San Pedro de Gallo				Wild material		1018723	W6 2182
155	W6 2183	R1031	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/24/1976	San Pedro de Gallo				Wild material		1018728	W6 2183
156	W6 2184	R1032	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/24/1976	San Pedro de Gallo				Wild material		1018735	W6 2184
157	W6 2185	R1033	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1018740	W6 2185
158	W6 2186	R1034	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1018747	W6 2186
159	W6 2187	R1035	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1018751	W6 2187
160	W6 2188	R1036	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1018759	W6 2188
161	W6 2189	R1037	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1018764	W6 2189
162	W6 2190	R1038	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1018771	W6 2190
163	W6 2191	R1039	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018776	W6 2191
164	W6 2192	R1040	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018783	W6 2192
165	W6 2193	R1041	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018789	W6 2193
166	W6 2194	R1042	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018797	W6 2194
167	W6 2195	R1043	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018803	W6 2195
168	W6 2196	R1044	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018809	W6 2196
169	W6 2197	R1045	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1018814	W6 2197
170	W6 2198	R1046	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	08/26/1976	Monterry				Wild material		1018821	W6 2198
171	W6 2199	R1047	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018828	W6 2199
172	W6 2200	R1048	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018834	W6 2200
173	W6 2201	R1049	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018840	W6 2201
174	W6 2202	R1050	Parthenium argentatum A. Gray	Zacatecas, Mexico		Historic	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018848	W6 2202
175	W6 2203	R1051	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018855	W6 2203
176	W6 2204	R1052	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018862	W6 2204
177	W6 2205	R1053	Parthenium argentatum A. Gray	Zacatecas, Mexico		Historic	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018871	W6 2205
178	W6 2206	R1054	Parthenium argentatum A. Gray	Zacatecas, Mexico		Historic	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018878	W6 2206
179	W6 2207	R1055	Parthenium argentatum A. Gray	Zacatecas, Mexico		Historic	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018885	W6 2207
180	W6 2208	R1056	Parthenium argentatum A. Gray	Zacatecas, Mexico		Historic	1989	COLLECTED	08/30/1976	Rocamontes				Wild material		1018892	W6 2208
181	W6 2209	R1057	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018899	W6 2209
182	W6 2210	R1058	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018906	W6 2210
183	W6 2211	R1059	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018913	W6 2211
184	W6 2212	R1060	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018921	W6 2212
185	W6 2213	R1061	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018926	W6 2213
186	W6 2214	R1062	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018930	W6 2214
187	W6 2215	R1063	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018938	W6 2215
188	W6 2216	R1064	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018944	W6 2216
189	W6 2217	R1065	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018951	W6 2217
190	W6 2218	R1066	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	08/31/1976	Los Pocitos				Wild material		1018958	W6 2218
191	W6 2219	R1067	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/02/1976	San Juan de Santa Cruz				Wild material		1018965	W6 2219
192	W6 2220	R1068	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/02/1976	La Escondida				Wild material		1018970	W6 2220
193	W6 2221	R1069	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1018978	W6 2221
194	W6 2222	R1070	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1018981	W6 2222
195	W6 2223	R1071	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1018991	W6 2223
196	W6 2224	R1072	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1018996	W6 2224
197	W6 2225	R1073	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1019004	W6 2225
198	W6 2226	R1074	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	09/04/1976	Cedros				Wild material		1019010	W6 2226
199	W6 2227	R1075	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1019018	W6 2227
200	W6 2228	R1076	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1019025	W6 2228
201	W6 2229	R1077	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/04/1976	Cedros				Wild material		1019031	W6 2229
202	W6 2230	R1078	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/04/1976	San Juan del Retiro				Wild material		1019038	W6 2230
203	W6 2231	R1079	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/04/1976	Saltillo				Wild material		1019044	W6 2231
204	W6 2232	R1080	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/04/1976	Saltillo				Wild material		1019053	W6 2232
205	W6 2233	R1081	Parthenium argentatum A. Gray	Nuevo León, Mexico	PARL	Not Available	1989	COLLECTED	09/05/1976	San Roberto				Wild material		1019057	W6 2233
206	W6 2234	R1082	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/05/1976	San Roberto				Wild material		1019065	W6 2234
207	W6 2235	R1083	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/05/1976	San Roberto				Wild material		1019069	W6 2235
208	W6 2236	R1084	Parthenium argentatum A. Gray	Nuevo León, Mexico		Historic	1989	COLLECTED	09/05/1976	San Roberto				Wild material		1019080	W6 2236
209	W6 2237	R1085	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	09/06/1976	Parras				Wild material		1019083	W6 2237
210	W6 2238	R1086	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/06/1976	Parras				Wild material		1019093	W6 2238
211	W6 2239	R1087	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/06/1976	Parras				Wild material		1019097	W6 2239
212	W6 2240	R1088	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/06/1976	Parras				Wild material		1019107	W6 2240
213	W6 2241	R1089	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/07/1976	Parras				Wild material		1019111	W6 2241
214	W6 2242	R1090	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	09/08/1976	Cuencame				Wild material		1019120	W6 2242
215	W6 2243	R1091	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/10/1978	Saltillo				Wild material		1019125	W6 2243
216	W6 2244	R1092	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	09/14/1979	Simon Bolivar				Wild material		1019134	W6 2244
217	W6 2245	R1093	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	09/14/1979	Simon Bolivar				Wild material		1019139	W6 2245
218	W6 2246	R1094	Parthenium argentatum A. Gray	Zacatecas, Mexico		Historic	1989	COLLECTED	09/15/1979	Juan Isabel Robles				Wild material		1019148	W6 2246
219	W6 2247	R1095	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	09/15/1979	Juan Isabel Robles				Wild material		1019153	W6 2247
220	W6 2248	R1096	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	09/15/1979	Juan Isabel Robles				Wild material		1019162	W6 2248
221	W6 2249	R1097	Parthenium argentatum A. Gray	Zacatecas, Mexico	PARL	Not Available	1989	COLLECTED	09/16/1979	Juan Isabel Robles				Wild material		1019165	W6 2249
222	W6 2250	R1098	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	09/19/1979	Lomas Berrendos				Wild material		1019176	W6 2250
223	W6 2251	R1099	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	09/21/1979	Saltillo				Wild material		1019179	W6 2251
224	W6 2252	R1100	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	09/21/1979	Saltillo				Wild material		1019189	W6 2252
225	W6 2253	R1101	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	09/21/1979	Saltillo				Wild material		1019193	W6 2253
226	W6 2254	R1102	Parthenium argentatum A. Gray	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	09/21/1979	Saltillo				Wild material		1019202	W6 2254
227	W6 2255	R1103	Parthenium argentatum A. Gray	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/07/1977	Cuencame				Wild material		1019210	W6 2255
228	W6 2256	R1104	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/07/1977	Fresnillo				Wild material		1019217	W6 2256
229	W6 2257	R1105	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/08/1977	Fresnillo				Wild material		1019226	W6 2257
230	W6 2258	R1106	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/08/1977	San Juan de Guadalupe				Wild material		1019233	W6 2258
231	W6 2259	R1107	Parthenium argentatum A. Gray	Durango, Mexico		Historic	1989	COLLECTED	08/08/1977	Cuencame				Wild material		1019238	W6 2259
232	W6 2260	R1108	Parthenium argentatum A. Gray	Texas, United States	PARL	Not Available	1989	COLLECTED	1981	Big Bend				Wild material		1019245	W6 2260
233	W6 2261	R1151	Parthenium bipinnatifidum (Ortega) Rollins	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/04/1976	Saltillo				Wild material		1019251	W6 2261
234	W6 2262	R1152	Parthenium bipinnatifidum (Ortega) Rollins	Durango, Mexico		Historic	1989	COLLECTED	08/07/1977	Durango				Wild material		1019260	W6 2262
235	W6 2263	R1153	Parthenium confertum A. Gray	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/04/1976	Saltillo				Wild material		1019266	W6 2263
236	W6 2264	R1123	Parthenium fruticosum Less.	Nuevo León, Mexico		Historic	1989	COLLECTED	09/02/1976	Linares				Wild material		1019273	W6 2264
237	W6 2265	R1124	Parthenium fruticosum Less.	Nuevo León, Mexico		Historic	1989	COLLECTED	09/03/1976	Linares				Wild material		1019280	W6 2265
238	W6 2266	R1125	Parthenium fruticosum Less.	Nuevo León, Mexico		Historic	1989	COLLECTED	09/03/1976	Linares				Wild material		1019286	W6 2266
239	W6 2267	R1126	Parthenium fruticosum Less.	Nuevo León, Mexico		Historic	1989	COLLECTED	09/03/1976	Linares				Wild material		1019293	W6 2267
240	W6 2268	R1127	Parthenium fruticosum Less.	Nuevo León, Mexico		Historic	1989	COLLECTED	09/03/1976	Altamira				Wild material		1019301	W6 2268
241	W6 2269	R1128	Parthenium fruticosum Less.	Tamaulipas, Mexico		Historic	1989	COLLECTED	07/09/1977	Mantes				Wild material		1019307	W6 2269
242	W6 2270	R1129	Parthenium fruticosum Less.	Veracruz de Ignacio de la Llave, Mexico		Historic	1989	COLLECTED	07/21/1977	Cerro Gordo				Wild material		1019315	W6 2270
243	W6 2271	R1109	Parthenium hybr.	Coahuila de Zaragoza, Mexico	PARL	Not Available	1989	COLLECTED	09/06/1976	Parras				Wild material		1019319	W6 2271
244	W6 2272	R1110	Parthenium hybr.	Arizona, United States	PARL	Not Available	1989	COLLECTED	04/23/1979	Mesa				Wild material		1019328	W6 2272
245	W6 2273	R1154	Parthenium hysterophorus L.	Nuevo León, Mexico		Historic	1989	COLLECTED	08/05/1977	Monterrey				Wild material		1019332	W6 2273
246	W6 2274	R1111	Parthenium incanum Kunth	Chihuahua, Mexico		Historic	1989	COLLECTED	08/19/1976	Jimenez				Wild material		1019342	W6 2274
247	W6 2275	R1112	Parthenium incanum Kunth	Durango, Mexico		Historic	1989	COLLECTED	08/20/1976	Mapimi				Wild material		1019345	W6 2275
248	W6 2276	R1113	Parthenium incanum Kunth	Durango, Mexico	PARL	Not Available	1989	COLLECTED	08/24/1976	San Pedro de Gallo				Wild material		1019355	W6 2276
249	W6 2277	R1114	Parthenium incanum Kunth	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/25/1976	El Hundido				Wild material		1019360	W6 2277
250	W6 2278	R1115	Parthenium incanum Kunth	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	08/26/1976	Ocampo				Wild material		1019369	W6 2278
251	W6 2279	R1116	Parthenium incanum Kunth	Nuevo León, Mexico		Historic	1989	COLLECTED	08/26/1976	Monterrey				Wild material		1019373	W6 2279
252	W6 2280	R1117	Parthenium incanum Kunth	Nuevo León, Mexico		Historic	1989	COLLECTED	08/26/1976	Los Pocitos				Wild material		1019382	W6 2280
253	W6 2281	R1118	Parthenium incanum Kunth	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/04/1976	San Juan del Retiro				Wild material		1019387	W6 2281
254	W6 2282	R1119	Parthenium incanum Kunth	Coahuila de Zaragoza, Mexico		Historic	1989	COLLECTED	09/06/1976	Parras				Wild material		1019395	W6 2282
255	W6 2283	R1120	Parthenium incanum Kunth	Hidalgo, Mexico		Historic	1989	COLLECTED	07/11/1977	Zimapan				Wild material		1019400	W6 2283
256	W6 2284	R1121	Parthenium incanum Kunth	Durango, Mexico		Historic	1989	COLLECTED	08/06/1977	Cuidad Lerdo				Wild material		1019407	W6 2284
257	W6 2285	R1122	Parthenium incanum Kunth	Durango, Mexico		Historic	1989	COLLECTED	08/06/1977	Cuidad Lerdo				Wild material		1019413	W6 2285
258	W6 2286	R1148	Parthenium schottii Greenm. ex Millsp. & Chase	Yucatán, Mexico	PARL	Not Available	1989	COLLECTED	07/18/1977	Merida				Wild material		1019419	W6 2286
259	W6 2287	R1149	Parthenium schottii Greenm. ex Millsp. & Chase	Yucatán, Mexico		Historic	1989	COLLECTED	07/18/1977	Puerto Chicxulub				Wild material		1019423	W6 2287
260	W6 2288	R1150	Parthenium schottii Greenm. ex Millsp. & Chase	Yucatán, Mexico	PARL	Not Available	1989	COLLECTED	07/18/1977	Puerto Chicxulub				Wild material		1019433	W6 2288
261	W6 2289	R1130	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico	PARL	Not Available	1989	COLLECTED	07/25/1977	Agua Fria				Wild material		1019436	W6 2289
262	W6 2290	R1131	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico		Historic	1989	COLLECTED	06/26/1977	Mazocahui				Wild material		1019443	W6 2290
263	W6 2291	R1132	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico		Historic	1989	COLLECTED	06/27/1977	Matape				Wild material		1019446	W6 2291
264	W6 2292	R1133	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico		Historic	1989	COLLECTED	06/27/1977	Matape				Wild material		1019454	W6 2292
265	W6 2293	R1134	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico		Historic	1989	COLLECTED	06/27/1977	Matape				Wild material		1019457	W6 2293
266	W6 2294	R1135	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico		Historic	1989	COLLECTED	06/28/1977	Matape				Wild material		1019465	W6 2294
267	W6 2295	R1136	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico		Historic	1989	COLLECTED	07/25/1977	Mazocahui				Wild material		1019468	W6 2295
268	W6 2296	R1137	Parthenium tomentosum DC. var. stramonium (Greene) Rollins	Sonora, Mexico	PARL	Not Available	1989	COLLECTED	07/25/1977	Cururpe				Wild material		1019474	W6 2296
269	W6 2297	R1138	Parthenium tomentosum DC. var. tomentosum	Puebla, Mexico		Historic	1989	COLLECTED	07/13/1977	El Riego				Wild material		1019480	W6 2297
270	W6 2298	R1139	Parthenium tomentosum DC. var. tomentosum	Puebla, Mexico		Historic	1989	COLLECTED	07/13/1977	Tehuacan				Wild material		1019483	W6 2298
271	W6 2299	R1140	Parthenium tomentosum DC. var. tomentosum	Puebla, Mexico		Historic	1989	COLLECTED	07/13/1977	Tehuacan				Wild material		1019490	W6 2299
272	W6 2300	R1141	Parthenium tomentosum DC. var. tomentosum	Puebla, Mexico		Historic	1989	COLLECTED	07/13/1977	Tehuacan				Wild material		1019495	W6 2300
273	W6 2301	R1142	Parthenium tomentosum DC. var. tomentosum	Oaxaca, Mexico		Historic	1989	COLLECTED	07/14/1977	Teotilan				Wild material		1019498	W6 2301
274	W6 2302	R1143	Parthenium tomentosum DC. var. tomentosum	Oaxaca, Mexico		Historic	1989	COLLECTED	07/14/1977	Teotilan				Wild material		1019506	W6 2302
275	W6 2303	R1144	Parthenium tomentosum DC. var. tomentosum	Oaxaca, Mexico		Historic	1989	COLLECTED	07/14/1977	Cuicatlan				Wild material		1019512	W6 2303
276	W6 2304	R1145	Parthenium tomentosum DC. var. tomentosum	Oaxaca, Mexico		Historic	1989	COLLECTED	07/14/1977	Cuicatlan				Wild material		1019518	W6 2304
277	W6 2305	R1146	Parthenium tomentosum DC. var. tomentosum	Oaxaca, Mexico		Historic	1989	COLLECTED	07/15/1977	Mitla				Wild material		1019521	W6 2305
278	W6 2306	R1147	Parthenium tomentosum DC. var. tomentosum	Oaxaca, Mexico		Historic	1989	COLLECTED	07/15/1977	Matatan				Wild material		1019529	W6 2306
279	W6 549	CAL-6	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1986	DONATED	1986					Breeding material	High rubber yielding germplasm developed from a single plant selection. At 21 months the plants which contributed seed to Cal-6 produced 2.3 times more rubber (910.2 Kg/h/y) and 2.3 times more resin (877.4 Kg/h/y) than the check variety N565. Tetraploid with 2n = 72 chromosomes. Reproduces by facultative apomixis. On average it produces 12.5% off-types. Estimated ploidy: 4x (Gore et al. 2011. Complex Ploidy Level Variation in Guayule Breeding Programs. Crop Science 51:210-216)	1169982	W6 549
280	W6 7157	CAL-7	Parthenium argentatum A. Gray	California, United States	PARL	Not Available	1986	DONATED	1986					Breeding material	High rubber yielding germplasm which was developed from a single plant selection. At age of 21 months, the plants which contributed seed to CAL-7 produced 1.7 times more rubber (684.2 Kg/h/y) and 1.8 times more resin (687.6 Kg/h/y) than the check variety N565. Triploid with 2n = 54 chromosomes. Reproduces by facultative apomixis with an average of 18.5% off-types.	1169983	W6 7157
281	W6 550	RICHARDSON	Parthenium argentatum A. Gray	Arizona, United States	PARL	Not Available	1984	DONATED	1984					Cultivar		1161725	W6 550
282	W6 551	CAL-5	Parthenium hybr.	California, United States	PARL	Not Available	1984	DONATED	1984					Breeding material	Ranged from 1-7% in rubber content with an average of 2.4% at the age of 26-28 months. Range from 40-115 cm in height and 60-165 cm in spread. Combines the rubber producing capability of guayule with the desirable characteristics of P. tomentosum var. stramonium which are vigor, high biomass production and resistance to Verticillium wilt.	1161803	W6 551