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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	COLLECTION SITE	ELEVATION	IMPROVEMENT LEVEL
0	PI 560301	'Mont Blanc'	Nierembergia hippomanica Miers var. coerulea (Gillies ex Miers) Millán	United States	NLGRP	Not Available	1992	DEVELOPED			Cultivar	1455273	PI 560301
1	PI 151771		Nierembergia gracilis Hook.	La Rioja, Argentina		Historic	1945	COLLECTED	Duranzno			1889074	PI 151771
2	PI 151772		Nierembergia hippomanica Miers	San Luis, Argentina		Historic	1945	COLLECTED	Merlo			1889075	PI 151772
3	PI 144254	No. 40.1036	Nierembergia hippomanica Miers	Córdoba, Argentina		Historic	1942	COLLECTED	Sierra Grande	1000		1872669	PI 144254
4	PI 112293		Nierembergia gracilis Hook.	Egypt		Historic	1935	COLLECTED				1492052	PI 112293
5	PI 106105		Nierembergia scoparia Sendtn.	China		Historic	1933	COLLECTED				1492531	PI 106105
6	PI 33992		Nierembergia scoparia Sendtn.	Buenos Aires, Argentina		Historic	1912	COLLECTED				1599486	PI 33992

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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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