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June 1, 2026 – New Shipping Procedures

Effective June 1, 2026, all U.S. National Plant Germplasm System (NPGS) recipients are required to pay the shipping charges of their germplasm requests by providing a prepaid label or waybill. For more details, please refer to our Frequently Asked Questions.

News

Effective Jan. 1, 2025, the U.S. National Plant Germplasm System will modify its SMTA acceptance policy to distinguish between propagative and non-propagative germplasm. [Read More]

The U.S. Department of Agriculture (USDA) released today the National Strategic Germplasm and Cultivar Collection Assessment and Utilization Plan in support of the Agricultural Research Service (ARS) U.S. National Plant Germplasm System’s (NPGS) mission [Read More]

International distributions are covered by the International Treaty on Plant Genetic Resources for Food and Agriculture and could be covered by the Standard Material Transfer Agreement (SMTA). [Read More]

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	ACCESSION	PLANT NAME	TAXONOMY	ORIGIN	AVAILABILITY	RECEIVED	SOURCE TYPE	SOURCE DATE	COLLECTION SITE	ELEVATION
0	PI 149801		Marsdenia edulis S. Watson	Sonora, Mexico	Historic	1944	COLLECTED	04/27/1942	Alamos		1884577	PI 149801
1	PI 130510	No. 14851	Marsdenia sp.	Yunnan Sheng, China	Historic	1938	COLLECTED		Guhtzun, Muli	2500	1846455	PI 130510
2	PI 124255		Marsdenia tenacissima (Roxb.) Moon	India	Historic	1937	COLLECTED				1838091	PI 124255
3	PI 77921		Marsdenia verrucosa Decne.	Madagascar	Historic	1928	COLLECTED		Itrobeka, Ampanihy where cuttings were collected or Tongobory where specimens were obtained		1733461	PI 77921
4	PI 78441	'Bokabay'	Marsdenia verrucosa Decne.	Madagascar	Historic	1928	COLLECTED	08/30/1928	Itrobeka		1734057	PI 78441
5	PI 78442		Marsdenia verrucosa Decne.	Madagascar	Historic	1928	COLLECTED	08/30/1928	Itrobeka		1734058	PI 78442
6	PI 39685		Marsdenia tenacissima (Roxb.) Moon	West Bengal, India	Historic	1915	COLLECTED				1604358	PI 39685

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June 1, 2026 – New Shipping Procedures

News

SMTA Acceptance Policy

USDA Introduces a Multi-Year Plan to Strengthen U.S. Genebank Management of Plant GermplasmInternational Distributions

International Distributions

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