| 0 | PI 323874 | 'Wafer Ash' | Ptelea trifoliata L. | Arizona, United States | | | Historic | 1967 | COLLECTED | | Above Sedona | | 1806 | | | | 1714568 | PI 323874 |
| 1 | PI 323875 | 'Wafer Ash' | Ptelea trifoliata L. | Arizona, United States | | | Historic | 1967 | COLLECTED | | Along Forestry Road, 32km south of Fredonia | | | | | | 1714569 | PI 323875 |
| 2 | Ames 36280 | Hack Canyon | Ptelea trifoliata L. | Arizona, United States | NC7 |  | Not Available | 2024 | COLLECTED | 10/17/2024 | Hack Canyon, approximately 18.2 air miles south-southwest of Kaibab. Population begins approximately 1.35 road miles from the turnoff of Mount Trumbull Road. T37N R5W SW 1/4 NE 1/4. | 36.60735300, -112.83363100 | 1469 | Canyon bottom and steep slopes above canyon. | Wild material | | 2169808 | Ames 36280 |
| 3 | NA 88651 | KY23-055 | Ptelea trifoliata L. | Kentucky, United States | | | Historic | 2023 | COLLECTED | 09/14/2023 | Floracliff Nature Sanctuary. | 37.90261000, -84.35883000 | 277 | Edge, dry/rocky/upland. Elevation: 910 feet. Aspect: Southwest. | Wild material | | 2158744 | NA 88651 |
| 4 | Ames 36168 | Mount Magazine | Ptelea trifoliata L. | Arkansas, United States | NC7 |  | | 2023 | COLLECTED | 08/26/2023 | Mount Magazine State Park primarily localized to the northwest rim of the mountain along the trails heading west from Brown's Spring, T6N R25W Sec. 21. | 35.17130900, -93.65582200 | 786 | Top of sky-island mountain. Localized along the rims just above steep cliffs on north facing slopes. | Wild material | Plants in nature ranging from three to fifteen feet in height with peak bloom observed during the first week of May (2023). | 2158787 | Ames 36168 |
| 5 | Ames 36170 | Lake Catherine State Park | Ptelea trifoliata L. | Arkansas, United States | NC7 |  | | 2023 | COLLECTED | 08/27/2023 | Lake Catherine State Park approximately 10 miles southeast of Hot Springs. Localized to the ridge top of Dam Mountain on the south shore of the southeast arm of the reservior, starting approximately 0.25 miles southwest of the dam. T3S R18W Sec. 35. | 34.42452200, -92.90218400 | 199 | Dry ridge top. Predominantly on the north facing edge of ridge. | Wild material | A localized but very dense population. Ptelea is the dominant understory species in this location. | 2158789 | Ames 36170 |
| 6 | NA 87354 | TJK2022TX-002 | Ptelea trifoliata L. | Texas, United States | NA | | | 2023 | COLLECTED | 11/29/2022 | Blanco County: Little Blanco Road, upper slope off Little Blanco River; 330 feet west of Highway 281. | 30.00140000, -98.40650000 | 390 | Shaded streamside slope between road and Little Blanco River. | Wild material | | 2141645 | NA 87354 |
| 7 | NA 89039 | RJL2022IL-001 | Ptelea trifoliata L. | Illinois, United States | NA | | | 2022 | COLLECTED | 09/28/2022 | Site of plant habitat is located at 823 E Co Rd 1220, Hamilton, IL 62341 which is the property where Jacob's Geode Shop and Mine is located. This species is scattered and relatively common throughout the woodlands on this site. | 40.37848400, -91.35390200 | 175 | Plants growing in shade to part-shade of deciduous woodlands above a small creek. Soils: The underlying geology of this area is of Mississippian origin and comprised of Warsaw Formation and Salem Limestone. Major lithological components include limestone that can be shaly, oolitic, bioclastic, or cherty. Minor lithological components include siltstone that can contain geodes or drusy quartz and can be calcareous. Source: USGS Illinois Geologic Map Data (https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ILMws%3B0) The surface soil profile of this area is Coffeen silt loam, 0 to 2 percent slopes, that are frequently flooded. The Coffeen series consists of very deep, somewhat poorly drained, moderately permeable soils on flood plains, low terraces or benches, toe slopes, and alluvial fans. They formed in silty alluvium. Much of the alluvium is of local origin derived from the nearby loess-covered uplands. Source: NRCS Web Soil Survey (https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx) | Wild material | | 2139604 | NA 89039 |
| 8 | Ames 35738 | AS/PT/2021/016/116 | Ptelea trifoliata L. | Illinois, United States | NC7 |  | | 2021 | COLLECTED | 08/26/2021 | State Route 71 along Illinois River located approximately 1.30 miles southwest of Ottawa, T33N R3E NE1/4 Sec. 15 | 41.33370200, -88.86061200 | 148 | Roadside at top of limestone cliff above Illinois River. | Wild material | Trees measuring approximately 20-25' in height. Peak flowering and fruiting occurred 4 May and approximately 10 September 2021, respectively. | 2120342 | Ames 35738 |
| 9 | Ames 35660 | Kiamichi Mountains | Ptelea trifoliata L. | Oklahoma, United States | NC7 | | | 2021 | COLLECTED | 07/19/2018 | Kiamichi Mountains of Ouachita National Forest along Road 6025 just west of State Highway 259, T2N R25E SW 1/4 NE 1/4 SW 1/4 Sec. 27 | 34.61314900, -94.67035700 | 651 | Open, dry ridgetop, rocky roadside. | Wild material | Specimens sampled measuring approximately 20-25' in height. | 2114985 | Ames 35660 |
| 10 | Ames 35232 | Ames 35232 | Ptelea trifoliata L. | Illinois, United States | NC7 |  | | 2019 | COLLECTED | 10/01/2019 | Rock Creek watershed located approximately 4.5 miles southwest of Athens, T17N R6W SE1/4 SW1/4 Sec. 8 | 39.93164600, -89.80193000 | 159 | Creek banks, floodplain, and fence rows (north and west facing slopes) | Wild material | | 2097768 | Ames 35232 |
| 11 | NA 85740 | NA 85740 | Ptelea trifoliata L. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Ptelea trifoliata. Received by May, when plants were installed. | 2154367 | NA 85740 |
| 12 | NA 85855 | NA 85855 | Ptelea trifoliata L. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Ptelea trifoliata. | 2154464 | NA 85855 |
| 13 | Ames 33867 | JDC/PT/2016/034/749 | Ptelea trifoliata L. | Iowa, United States | NC7 |  | | 2016 | COLLECTED | 11/01/2016 | Shields Prairie located approximately 5.85 miles northwest of Muscatine, T77N R2W SW1/4 SE1/4 Sec. 7 | 41.48239000, -91.12428000 | 222 | Native prairie remnant | Wild material | | 1943209 | Ames 33867 |
| 14 | RRUT 502 | ACC# 16852 | Ptelea aptera Parry | Baja, Mexico | | | Historic | 2012 | COLLECTED | 07/25/1991 | Locality from RSABG stated to be "Hwy 1, 9.3 M S of jctn to Punta Banda at Maneadero". | | | | Cultivated material | | 1902375 | RRUT 502 |
| 15 | RRUT 503 | ACC# 11332 | Ptelea crenulata Greene | | | | Historic | 2012 | COLLECTED | 07/25/1962 | | | | | Cultivated material | | 1902377 | RRUT 503 |
| 16 | RRUT 504 | ACC# 8299 | Ptelea crenulata Greene | California, United States | | | Historic | 2012 | COLLECTED | 10/15/1952 | | | | | Cultivated material | | 1902378 | RRUT 504 |
| 17 | RSD 2012022 | ACC# 16852 | Ptelea aptera Parry | Baja, Mexico | | | Historic | 2012 | COLLECTED | 07/25/1991 | Locality from RSABG database stated to be "Hwy 1, 9.3 M S of jctn to Punta Banda at Maneadero". | | | | Wild material | | 1902370 | RSD 2012022 |
| 18 | RSD 2012023 | ACC# 14728 | Ptelea crenulata Greene | California, United States | | | Historic | 2012 | COLLECTED | 1982 | | | | | Wild material | | 1902371 | RSD 2012023 |
| 19 | RSD 2012016 | 20110360 | Ptelea trifoliata L. | Michigan, United States | | | Historic | 2012 | COLLECTED | 09/20/2011 | Legg Park Parking Lot, Ingham County, MI | 42.70000000, -84.38333300 | 259 | Forest Edge | Cultivated material | | 1899380 | RSD 2012016 |
| 20 | WLP 2406 | 201546 | Ptelea trifoliata L. | Texas, United States | NA |  | | 2011 | COLLECTED | 09/17/2003 | Scott Rd | 30.19917000, -97.58735000 | 130 | Blackland prairie. Soil brown. | Wild material | | 1895348 | WLP 2406 |
| 21 | Ames 30167 | JDC/PT/2009/061/211 | Ptelea trifoliata L. | Illinois, United States | NC7 |  | | 2009 | COLLECTED | 09/24/2009 | Rock Cut State Park along Hart Road; SE 1/4 of SE 1/4 of Section 21, T45N, R2E, Rockford North Quad. | 42.35500000, -89.00083333 | 254 | Roadside. | Wild material | | 1819748 | Ames 30167 |
| 22 | Ames 35665 | RL 08232 | Ptelea trifoliata L. | Georgia, United States | NC7 |  | Not Available | 2008 | COLLECTED | 11/15/2008 | Pigeon Mountain along North Pocket Trail near limestone outcroppings. | 34.70681000, -85.36583000 | 495 | | Wild material | | 1914151 | Ames 35665 |
| 23 | NA 75401 | RL 152 | Ptelea trifoliata L. | Georgia, United States | NA | | Not Available | 2006 | COLLECTED | 07/01/2004 | Georgia, Wheeler County, At junction of HWY 46 and Oconee River; on bluff's side of crossing. | | | | Wild material | | 1777668 | NA 75401 |
| 24 | NA 73822 | Ames 27328 | Ptelea trifoliata L. | United States | NC7 | | Not Available | 2004 | COLLECTED | 06/25/2004 | | | | | Wild material | | 1897403 | NA 73822 |
| 25 | WLP 1490 | | Ptelea trifoliata L. | | NA | | | 2004 | | | | | | | Wild material | | 1897404 | WLP 1490 |
| 26 | Ames 27328 | 31 | Ptelea trifoliata L. | Iowa, United States | | | Historic | 2003 | COLLECTED | 09/23/2003 | North edge of Lindsay Wilderness Area, Bonaparte, T68N R8W, NE corner of NE 1/4 of NE 1/4, Section 8, Bonaparte Quad, Van Buren County. | 40.71083333, -91.79583333 | 204 | Powerline cut. Sunny. ~10% slope with various aspects. Associated with Monarda fistulosa, Solidago altissima, Teucrium, and Symphoricarpos orbiculatus. | Wild material | Large shrubs or small trees. | 1649674 | Ames 27328 |
| 27 | Ames 27329 | 34 | Ptelea trifoliata L. | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 09/24/2003 | Bluff Park, Keokuk, South of Park Street at G, T65N R5W, Section 35, Keokuk Quad. | 40.38861111, -91.40277778 | 194 | Bluff edge along Mississippi River. Sunny. 25% slope with a southern aspect. Soil well to good drainage. | Wild material | | 1649675 | Ames 27329 |
| 28 | NA 66676 | Mort 60 | Ptelea trifoliata L. | | NA | | Not Available | 1992 | COLLECTED | | Illinois, Will County | | | | Wild material | | 1493809 | NA 66676 |
| 29 | Ames 2815 | Ames 2815 | Ptelea trifoliata L. | Manitoba, Canada | | | Historic | 1984 | DONATED | 02/17/1984 | | | | | Cultivated material | Small tree or large shrub. | 1810003 | Ames 2815 |