| 0 | PI 443496 | JB 0178 | Piper sp. | Guatemala | | | Historic | 1979 | COLLECTED | 02/02/1978 | Kital | | | | | Plants spreading, 2m tall. Fruits oval, 10-15cm long, bright red at maturity. | 1338432 | PI 443496 |
| 1 | PI 316587 | Col. No. 19312 | Piper nigrum L. | Thailand | | | Historic | 1966 | COLLECTED | | Collected on property of Chow Chinokul, Trang Province | | | | | | 1708071 | PI 316587 |
| 2 | PI 304213 | 'Trang' | Piper nigrum L. | Thailand | | | Historic | 1965 | COLLECTED | | | | | | | | 1700741 | PI 304213 |
| 3 | PI 261088 | | Piper sp. | Maryland, United States | | | Historic | 1959 | DONATED | 11/02/1959 | | | | | | | 1563829 | PI 261088 |
| 4 | PI 260860 | | Piper ornatum N. E. Br. | Maryland, United States | | | Historic | 1959 | DONATED | 10/20/1959 | | | | | | | 1563515 | PI 260860 |
| 5 | PI 260861 | | Piper sp. | Maryland, United States | | | Historic | 1959 | DONATED | 10/20/1959 | | | | | | | 1563516 | PI 260861 |
| 6 | PI 212965 | KUDRAVALI | Piper nigrum L. | Maryland, United States | | | Historic | 1954 | DONATED | 01/02/1954 | | | | | | | 1175713 | PI 212965 |
| 7 | PI 196035 | Kundo-perpere | Piper cubeba L. f. | Ethiopia | | | Historic | 1951 | COLLECTED | 01/1951 | | | | | | | 1673509 | PI 196035 |
| 8 | PI 194241 | 'Balamkotta' | Piper nigrum L. | India | | | Historic | 1951 | COLLECTED | | | | | | | | 1671262 | PI 194241 |
| 9 | PI 194242 | 'Kalluvally' | Piper nigrum L. | Kerala, India | | | Historic | 1951 | COLLECTED | | | | | | | | 1671263 | PI 194242 |
| 10 | PI 193021 | 'Sahang-Bangka' | Piper nigrum L. | Indonesia | | | Historic | 1950 | COLLECTED | | | | | | | | 1670677 | PI 193021 |
| 11 | PI 193022 | 'Sahang Lampong' | Piper nigrum L. | Sumatera, Indonesia | | | Historic | 1950 | COLLECTED | | | | | | | | 1670678 | PI 193022 |
| 12 | PI 190861 | 'Kalluvally' | Piper nigrum L. | India | | | Historic | 1950 | COLLECTED | | | | | | | | 1670454 | PI 190861 |
| 13 | PI 189223 | | Piper nigrum L. | India | | | Historic | 1950 | COLLECTED | | | | | | | | 1669329 | PI 189223 |
| 14 | PI 189224 | | Piper sp. | Assam, India | | | Historic | 1950 | COLLECTED | | | | | | | | 1669330 | PI 189224 |
| 15 | PI 189196 | | Piper nigrum L. | Sri Lanka | | | Historic | 1950 | COLLECTED | | | | | | | | 1669237 | PI 189196 |
| 16 | PI 188738 | | Piper nigrum L. | Indonesia | | | Historic | 1950 | COLLECTED | | | | | | | | 1668729 | PI 188738 |
| 17 | PI 188488 | | Piper nigrum L. | Sri Lanka | | | Historic | 1950 | COLLECTED | | | | | | | | 1668468 | PI 188488 |
| 18 | PI 187122 | | Piper nigrum L. | Singapore | | | Historic | 1950 | COLLECTED | | | | | | | | 1668100 | PI 187122 |
| 19 | PI 167168 | | Piper guineense Thonn. | Maryland, United States | | | Historic | 1948 | DONATED | 08/26/1948 | | | | | | | 1568996 | PI 167168 |
| 20 | PI 167183 | 'Karabiber Agaci' | Piper nigrum L. | Maryland, United States | | | Historic | 1948 | DONATED | 08/26/1948 | | | | | | | 1569011 | PI 167183 |
| 21 | PI 144151 | | Piper nigrum L. | Puerto Rico, United States | | | Historic | 1942 | COLLECTED | | | | | | | | 1871935 | PI 144151 |
| 22 | PI 137981 | No. 3427 | Piper sp. | Sulawesi, Indonesia | | | Historic | 1940 | COLLECTED | 03/30/1940 | Koelawi | | | | | | 1860347 | PI 137981 |
| 23 | PI 134270 | No. 24 | Piper nigrum L. | Kābul, Afghanistan | | | Historic | 1939 | COLLECTED | | Kabul bazar | | | | | | 1850648 | PI 134270 |
| 24 | PI 112073 | | Piper sp. | Puerto Rico, United States | | | Historic | 1935 | COLLECTED | | Luquillo National Forest | | | | | | 1808116 | PI 112073 |
| 25 | PI 110954 | No. 3118-a | Piper arboreum Aubl. subsp. tuberculatum (Jacq.) Tebbs | Carabobo, Venezuela | | | Historic | 1935 | COLLECTED | 02/28/1935 | Between Valencia and Guataporo | | | | | | 1802538 | PI 110954 |
| 26 | PI 110955 | Cordoncillo | Piper sp. | Táchira, Venezuela | | | Historic | 1935 | COLLECTED | 03/13/1935 | San Cristobal | | | | | | 1802539 | PI 110955 |
| 27 | PI 110956 | No. 3211 | Piper sp. | Táchira, Venezuela | | | Historic | 1935 | COLLECTED | 03/13/1935 | San Cristobal | | | | | | 1802540 | PI 110956 |
| 28 | PI 111011 | Cordoncillo | Piper sp. | Cundinamarca, Colombia | | | Historic | 1935 | COLLECTED | 04/03/1935 | La Uribe near Bogota | | | | | | 1802591 | PI 111011 |
| 29 | PI 111015 | No. 3285 | Piper peltatum L. | Cundinamarca, Colombia | | | Historic | 1935 | COLLECTED | 04/11/1935 | La Esperenza | | | | | | 1802595 | PI 111015 |
| 30 | PI 107767 | No. 2727 | Piper peltatum L. | Suriname | | | Historic | 1935 | COLLECTED | 11/12/1934 | Near Scotelweg | | | | | | 1797490 | PI 107767 |
| 31 | PI 106577 | No. 2540 | Piper sp. | Guyana | | | Historic | 1934 | COLLECTED | 09/16/1934 | Wauna Sub-Experiment Station, Koriabo River | | | | | | 1795767 | PI 106577 |
| 32 | PI 106578 | No. 2541 | Piper sp. | Guyana | | | Historic | 1934 | COLLECTED | 09/16/1934 | Wauna Sub-Experiment Station, Koriabo River | | | | | | 1795768 | PI 106578 |
| 33 | PI 106579 | No. 2535 | Piper sp. | Guyana | | | Historic | 1934 | COLLECTED | 09/16/1934 | Wauna Sub-Experiment Station, Koriabo River | | | | | | 1795769 | PI 106579 |
| 34 | PI 99620 | No. 3767 | Piper betle L. | Suriname | | | Historic | 1932 | COLLECTED | 03/04/1932 | Javanese kampong, Cramerweg | | | | | | 1786954 | PI 99620 |
| 35 | PI 94282 | | Piper methysticum G. Forst. | Society Islands, French Polynesia | | | Historic | 1931 | COLLECTED | | | | | | | | 1494622 | PI 94282 |
| 36 | PI 94280 | Kava | Piper methysticum G. Forst. | Hawaii, United States | | | Historic | 1931 | COLLECTED | | | | | | | | 1494384 | PI 94280 |
| 37 | PI 61617 | | Piper attenuatum Buch.-Ham. ex Miq. | West Bengal, India | | | Historic | 1924 | COLLECTED | | | | | | | | 1662919 | PI 61617 |
| 38 | PI 52572 | | Piper sp. | Queensland, Australia | | | Historic | 1921 | COLLECTED | | | | | | | | 1623835 | PI 52572 |
| 39 | PI 51264 | Cordoncilla | Piper sp. | Alta Verapaz, Guatemala | | | Historic | 1920 | COLLECTED | | | | | | | | 1618977 | PI 51264 |
| 40 | PI 51059 | 'Cordoncilla' | Piper arboreum Aubl. subsp. tuberculatum (Jacq.) Tebbs | Alta Verapaz, Guatemala | | | Historic | 1920 | COLLECTED | | | | | | | | 1618785 | PI 51059 |
| 41 | PI 38291 | | Piper methysticum G. Forst. | American Samoa, United States | | | Historic | 1914 | COLLECTED | | | | | | | | 1516570 | PI 38291 |
| 42 | PI 35460 | | Piper nigrum L. | Singapore | | | Historic | 1913 | COLLECTED | | | | | | | | 1515690 | PI 35460 |
| 43 | PI 34327 | | Piper cubeba L. f. | Île-de-France, France | | | Historic | 1912 | COLLECTED | | | | | | | | 1599773 | PI 34327 |
| 44 | PI 34328 | | Piper cubeba L. f. | Île-de-France, France | | | Historic | 1912 | COLLECTED | | | | | | | | 1646418 | PI 34328 |
| 45 | PI 34089 | | Piper nigrum L. | Île-de-France, France | | | Historic | 1912 | COLLECTED | | | | | | | | 1599570 | PI 34089 |
| 46 | PI 29467 | | Piper nigrum L. | Mexico | | | Historic | 1911 | COLLECTED | | | | | | | | 1595231 | PI 29467 |
| 47 | PI 5563 | No. 382 | Piper chaba W. Hunter | Sulawesi, Indonesia | | | Historic | 1900 | COLLECTED | 01/22/1900 | | | | | | | 1541988 | PI 5563 |
| 48 | PI 5167 | | Piper nigrum L. | Phetchabun, Thailand | | | Historic | 1900 | COLLECTED | | | | | | | | 1541142 | PI 5167 |
| 49 | MIA 37465 Orna | MIA 37465 Orna | Piper nigrum L. | | MIA | | Not Available | 2024 | | | | | | | | | 2170835 | MIA 37465 Orna |
| 50 | MIA 37400 Orna | MIA 37400 Orna | Piper nigrum L. | | MIA | | Not Available | 2024 | | | | | | | | | 2170770 | MIA 37400 Orna |
| 51 | MIA 37401 Orna | MIA 37401 Orna | Piper nigrum L. | | MIA | | Not Available | 2024 | | | | | | | | | 2170771 | MIA 37401 Orna |
| 52 | MIA 37402 Orna | MIA 37402 Orna | Piper betle L. | | MIA | | Not Available | 2024 | | | | | | | | | 2170772 | MIA 37402 Orna |
| 53 | MIA 37403 Orna | MIA 37403 Orna | Piper betle L. | | MIA | | Not Available | 2024 | | | | | | | | | 2170773 | MIA 37403 Orna |
| 54 | NA 75075 | NA 75075 | Piper kadsura (Choisy) Ohwi | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Piper kadsura. This could well be from one of the USNA expeditions to Japan. See NA 40156, 45101, 45102, and 45126. -SBL Form received: unknown propagule type. | 2150253 | NA 75075 |
| 55 | NA 75071 | NA 75071 | Piper nigrum L. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Piper nigrum. Form received: unknown propagule type. | 2150251 | NA 75071 |
| 56 | NA 83178 | NA 83178 | Piper betle L. | | NA | | Not Available | 2016 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Piper betle. | 2153281 | NA 83178 |
| 57 | TARS 18095 | 'Balancotta' | Piper nigrum L. | | MAY | | Not Available | 2008 | DONATED | PRE 1965 | | | | | | | 1791675 | TARS 18095 |
| 58 | TARS 18096 | 'Kallivali' | Piper nigrum L. | | |  | Historic | 2008 | DONATED | PRE 1965 | | | | | | | 1791676 | TARS 18096 |
| 59 | NA 73982 | NA 73982 | Piper auritum Kunth | | NA | | Not Available | 1998 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Piper auritum. | 2149874 | NA 73982 |
| 60 | MIA 30423 | | Piper excelsum G. Forst. var. major Cheeseman | | | | Historic | 1984 | DONATED | 03/1984 | | | | | | REC'D THRU JOHN M. RILEY, 3370 PRINCETON CT.,SANTA CLARA, CA 95051. RARE LARGE GLOSSY LEAVED FORM OF THE NEW ZEALAND PEPPER TREE. THE PLANT IS MADE UP OF MANY SUCKERS IN A CLUMP AND THE SHOOTS HAVE JOINTS MIMICING BAMBOO. LEAVES HEART SHAPED. ORNAMENTAL ALTHOGH EDIBLE, WITH STRANGE SWEET PEPPER FLAVOR, SHAPED LIKE MONSTERA,ORANGE WHEN RIPE. TWIGS BURNED TO CHASE MOS QUITOS. CROSS BETWEEN OFFSHORE AND COMMON VARIEGATED.TO 15 FT. | 1099871 | MIA 30423 |
| 61 | MIA 30424 | | Piper sp. | | | | Historic | 1984 | DONATED | 03/1984 | | | | | | DONOR=PAUL RECHER THRU JOHN M. RILEY, 3370 PRINCETON CT.SANTA CLARA, CA 95051 | 1099874 | MIA 30424 |
| 62 | MIA 30425 | | Piper sp. | | | | Historic | 1984 | DONATED | 03/1984 | | | | | | DONOR=PAUL RECHER THRU JOHN M. RILEY, 3370 PRINCETON CT.,SANTA CLARA, CA 95051. | 1099878 | MIA 30425 |
| 63 | MIA 29181 | | Piper sp. | | | | Historic | 1982 | DONATED | 09/1982 | | | | | | COLL. IN BELIZE. TO 10 FEET. | 1097629 | MIA 29181 |
| 64 | MIA 28722 | | Piper auritum Kunth | Florida, United States | | | Historic | 1981 | COLLECTED | | | | | | | | 1096968 | MIA 28722 |
| 65 | MIA 25140 | KULLAVALLI | Piper nigrum L. | Puerto Rico, United States | | | Historic | 1978 | COLLECTED | | | | | | | | 1090997 | MIA 25140 |
| 66 | MIA 25141 | BALAMCOTTA | Piper nigrum L. | Puerto Rico, United States | | | Historic | 1978 | COLLECTED | | | | | | | | 1090998 | MIA 25141 |
| 67 | MIA 25142 | KACHING 14205 | Piper nigrum L. | Puerto Rico, United States | | | Historic | 1978 | COLLECTED | | | | | | | | 1091001 | MIA 25142 |
| 68 | TARS 12404 | Black Pepper | Piper nigrum L. | Maryland, United States | MAY | | Not Available | 1962 | DONATED | 01/03/1962 | | | | | | | 1677808 | TARS 12404 |