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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	ELEVATION	HABITAT	IMPROVEMENT LEVEL	NARRATIVE
0	W6 56604	CBG-8791	Polytaenia nuttallii DC.	Kansas, United States	W6	Not Available	2019							Wild material		2092703	W6 56604
1	Ames 33972	Ames 33972	Polytaenia nuttallii DC.	Iowa, United States	NC7		2017	COLLECTED	07/28/2017	Sheeder Prairie State Preserve located approximately 4.45 miles west, northwest of Guthrie Center, T80N R32W SW 1/4 SW 1/4 Sec. 33	41.68949600, -94.58847900	366	High-quality native prairie remnant. Dry, rocky habitat.	Wild material	A monocarpic perennial.	1950055	Ames 33972
2	Ames 32612	LBJWC-0116	Polytaenia nuttallii DC.	Texas, United States	NC7		2011	COLLECTED	06/12/2003				Associated with Juniperus ashei, Mahonia trifoliolata, Nassella leucotricha, and Quercus virginiana.	Wild material	A monocarpic perennial.	1895345	Ames 32612
3	W6 42888	MSB203018	Polytaenia nuttallii DC.	Texas, United States	W6		2011							Wild material		1895346	W6 42888

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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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