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	ACCESSION	PLANT NAME	TAXONOMY	ORIGIN	GENEBANK	RECEIVED	SOURCE TYPE	SOURCE DATE	COLLECTION SITE	COORDINATES	IMPROVEMENT LEVEL	NARRATIVE
0	PI 610977	Acc:412	Leymus triticoides (Buckley) Pilg.	Utah, United States	W6	1995	COLLECTED		Majors flat, San Pete County.		Wild material		1484375	PI 610977
1	PI 537357	A-11	Leymus triticoides (Buckley) Pilg.	Nevada, United States	W6	1989	COLLECTED	1975	1.6km E of Valmy		Wild material		1432293	PI 537357
2	PI 537358	A-19	Leymus triticoides (Buckley) Pilg.	Nevada, United States	W6	1989	COLLECTED	1975	Hwy 140, 17.6km S of Orovada		Wild material		1432294	PI 537358
3	PI 537360	A-31	Leymus triticoides (Buckley) Pilg.	Idaho, United States	W6	1989	COLLECTED	1975	Hwy 78, 3.2km S of Melba		Wild material		1432296	PI 537360
4	PI 516193	T-414	Leymus triticoides (Buckley) Pilg.	Nevada, United States	W6	1988	COLLECTED	07/22/1987	Farmstead, 3.2km W of highways 95 and 140 junction, N of Winnemucca.	41.40000000, -117.83333333	Wild material	Plant stand solid. Seed set good.	1411129	PI 516193
5	PI 516194	T-417	Leymus triticoides (Buckley) Pilg.	Oregon, United States	W6	1988	COLLECTED	07/22/1987	Bridge, E of road, N of French Glen.	42.88333333, -118.88333333	Wild material	Seed set good.	1411130	PI 516194
6	PI 516195	T-484	Leymus triticoides (Buckley) Pilg.	Nevada, United States	W6	1988	COLLECTED	07/22/1987	Pasture along creek, 3400 W. Winnemucca Blvd., Winnemucca.	40.95000000, -117.75000000	Wild material	Plant stand solid.	1411131	PI 516195
7	PI 490360	'Rio'	Leymus triticoides (Buckley) Pilg.	California, United States	W6	1984	DONATED	07/1984			Wild material	Collected by C. Finch and E. Eaton. Used for stabilizing stream banks, waterways and levees. Plants vigorous, agressive, productive in Mediterranean climate area of California.	1385296	PI 490360
8	PI 434040	'Shoshone'	Leymus triticoides (Buckley) Pilg.	Wyoming, United States	W6	1979	COLLECTED		Saline area along the Wind River, southern outskirts of Riverton		Cultivar	Shoshone beardless wildrye is a strongly rhizomatous, perennial grass adapted to wet, saline soil conditions. The rhizomes are covered with a dark brown papery coating, with few root hairs between root nodes. Once established either by seeding or sprigging, Shoshone is capable of spreading into even stronger saline soils. The hard seed coat, in part, creates both a physical and physiological seed dormancy, requiring that the seed be planted only in the late fall or winter. Wet, cold conditions are necessary to trigger germination. Shoshone has a shorter stature of 60-100 cm and is leafier than the native beardless wild rye. The majority of the leaves are basal or low on the seed-bearing culm. Leaves are light green to a yellowish-green. The seed-head of Shoshone are more compact with much shorter lemma awns. The seed of Shoshone does not shatter when mature, allowing direct-cut combining of seed. Shoshone has approximately 400 seeds per gram.	1328976	PI 434040
9	PI 578750	P-2741	Leymus triticoides (Buckley) Pilg.	Washington, United States	W6	1977	DONATED	1977			Breeding material		1473721	PI 578750
10	PI 578749	P 15594	Leymus triticoides (Buckley) Pilg.	Montana, United States	W6	1970	DONATED	1970			Cultivar		1473720	PI 578749
11	W6 62795	DCA00-10	Leymus triticoides (Buckley) Pilg.	California, United States	W6	2025					Wild material		2193092	W6 62795
12	W6 51905	OR010-294	Leymus triticoides (Buckley) Pilg.	Ohio, United States	W6	2017					Wild material		1947038	W6 51905
13	W6 30225	CA170-56	Leymus triticoides (Buckley) Pilg.	California, United States	W6	2007					Wild material		1719008	W6 30225
14	PI 701909	'L-74X'	Leymus hybr.	Utah, United States	W6	2023	DEVELOPED					Basin wildrye is somewhat indeterminate and shatters its seed. To avoid shattering losses, growers tend to harvest basin wildrye seed prior to maximal physiological maturity. To resolve the intersecting problems of floral indeterminacy and seed shattering, USDA-ARS released the L-74X basin wildrye X creeping wildrye germplasm on August 26, 2021. While L-74X has a narrow genetic base due to a biparental cross in its history, it can be used to introgress the non-shattering recessive sh6 allele of creeping wildrye (2n = 4x = 28) into 4x basin wildrye and closely related 4x Leymus species. L-74X originated with hybridization between 4x populations of basin wildrye and creeping wildrye, while eight generations of recombination and natural selection restored fertility to the interspecific hybrid. Intentional selection led to fixation of the sh6 allele. Averaged across two years, shattering genotypes (Sh6/sh6) averaged 19.4% greater (P < 0.05) seed yield per spike 23 days after pollination (DAP), but by 95 DAP non-shattering genotypes (sh6/sh6) averaged 167% greater (P < 0.05) seed yield per spike. Germination increased from 72.1% at 23 DAP to 86.4% at 95 DAP. The sh6 allele allows seed growers to delay seed harvest, concomitantly reducing shattering losses and improving physiological seed quality	2141276	PI 701909
15	PI 547121	T-56	Leymus hybr.	Nevada, United States	W6	1990	COLLECTED	07/23/1986	Secret Pass		Wild material		1442057	PI 547121
16	PI 537362	T-45	Leymus hybr.	Nevada, United States	W6	1989	COLLECTED	07/22/1986	North side of Eureka		Wild material		1432298	PI 537362
17	PI 537363	T-48	Leymus hybr.	Nevada, United States	W6	1989	COLLECTED	07/22/1986	N of Eureka		Wild material		1432299	PI 537363
18	W6 62494	DCA00-14	Phyla nodiflora (L.) Greene	California, United States	W6	2025					Wild material		2192192	W6 62494
19	W6 62800	DCA00-7	Heliotropium curassavicum L.	California, United States	W6	2025					Wild material		2193097	W6 62800
20	W6 62801	DCA00-9	Carex barbarae Dewey	California, United States	W6	2025					Wild material		2193098	W6 62801
21	W6 61556	CA340-45	Achillea millefolium L.	California, United States	W6	2024					Wild material	More of this population is scattered along banks of Panther Creek	2168005	W6 61556
22	W6 58432	CA190B-142	Trifolium barbigerum Torr.	California, United States	W6	2020					Wild material	The stipules on lvs are large and variable in shape. The flowers are held in a bowl-shaped involucre of bracts with toothed edges.ûDensely hairy involucre, larger heads (as compared to TRMI4)	2110326	W6 58432
23	W6 58436	CA190B-147	Trifolium polyodon Greene	California, United States	W6	2020					Wild material	Trifolium polydon differs from Trifolium varigatum in field by the calyx lobes. The TRPO3 has calyx lobes with shoulders and the TRVA does not have shoulders. ûLight pink uni-colored flowers, lobed sepal lobes, flat involucre.	2110330	W6 58436
24	W6 58454	CA190B-169	Juncus sp.	California, United States	W6	2020					Wild material	Received as Juncus phaeocephalus var. phaeocephalus	2110348	W6 58454
25	OPGC 8064	OR010-396	Calochortus macrocarpus Douglas	Oregon, United States	OPGC	2020					Wild material	Purple perianth, with 3 distinct petals and 3 narrow lance-like sepals. Yellow anthers along interior of petals. Nectary is bearded and triangular/sagittate in shape. Flowers usually come in pairs.	2107493	OPGC 8064
26	W6 56445	CA190B-138	Nassella pulchra (Hitchc.) Barkworth	California, United States	W6	2019					Wild material		2091948	W6 56445