Astragalus subcinereus A. Gray

Phaca subcinerea (A. Gray) Rydb. Bull. Torrey Club 40:47. 1913.
Astragalus subcinereus A. Gray, Proc. Am. Acad. 13: 366. 1878.
Apparently peiennial; stems decumbent at the base, cinereous often with curved hairs, 2-4 dm. high; leaves ascending, 5-8 cm. long; stipules free, broadly deltoid, about 2 mm. long; leaflets 9-21, oblong, 5-10 mm. long, 1-3 mm. wide, short-villous, obtuse to retuse; peduncles 2-3 cm. long; racemes rather dense, 7-10-flowered; calyx canescent, the tube about 4 mm. long, the lobes deltoid, about 1 mm. long; corolla about 8 mm. long, according to the original publication "greenish with a purple tip, the banner violet-striate"; legume sessile, villosulous, spotted with purple, 1.5-2 cm. long, 8-15 mm. wide; seeds brown, obliquely round-reniform, 2.5 mm. broad.
Type locality: Mokia Pass, northwestern Arizona.
Distribution: Arizona and southern Utah.

Perennial, Herbs, Stems woody below, or from woody crown or caudex, Plants with rhizomes or suckers, Taproot present, Nodules present, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems prostrate, trailing, or mat forming, Stems less than 1 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Stem hairs hispid to villous, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules membranous or chartaceous, Stipules persistent, Stipules connate to each other, forming a tuber or sheath, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence axillary, Bracts very small, absent or caducous, Flowers zygomorphic, Calyx 5-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals ochroleucous, cream colored, Petals blue, lavander to purple, or violet, Banner petal narrow or oblanceolate, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style persistent in fruit, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit oblong or ellipsoidal, Fruit or valves persistent on stem, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit inflated or turgid, Fruit beaked, Fruit hairy, Fruit 11-many seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.

Astragalus subcinereus is a species of milkvetch in the family Fabaceae.

Astragalus subcinereus adalah spesies tumbuhan yang tergolong ke dalam famili Fabaceae. Spesies ini juga merupakan bagian dari ordo Fabales. Spesies Astragalus subcinereus sendiri merupakan bagian dari genus Astragalus. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh A.Gray.

Astragalus subcinereus là một loài thực vật có hoa trong họ Đậu. Loài này được A.Gray miêu tả khoa học đầu tiên.