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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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PI 651794
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	ACCESSION	PLANT NAME	TAXONOMY	ORIGIN	GENEBANK	AVAILABILITY	RECEIVED	SOURCE TYPE	SOURCE DATE	COLLECTION SITE	COORDINATES	IMPROVEMENT LEVEL	NARRATIVE
0	PI 440567	D-1963	Napaea dioica L.	Kazakhstan	W6		1978	DEVELOPED	PRE 02/01/1978			Cultivar	Originally from U.S. Plant to 3m tall. Stems coarse, somewhat like sugar cane. Being tested as silage crop. Received as synonym, Sida hermaphrodita.	1335503	PI 440567
1	W6 47825	CBG-2299	Napaea dioica L.	Illinois, United States	W6		2014					Wild material		1919753	W6 47825
2	W6 27829	WC 12	Napaea dioica L.	Ohio, United States	W6	Not Available	2004	COLLECTED	09/01/2004	Tuscarawas County	40.38333333, -81.40833333	Wild material		1690815	W6 27829
3	NA 72110	NA 72110	Napaea dioica L.		NA	Not Available	1993					Cultivated material	Full name as recorded at U.S. National Arboretum: Napaea dioica.	2149224	NA 72110

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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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