Astragalus oxyphysus A. Gray

Phaca oxyphysa (A. Gray) A. Heller, Muhlenbergia 2: 86. 1905
Astragalus oxyphysus A. Gray, Proc. Am. Acad. 6: 218. 1864. Tragacantha oxyphysa Kuntze, Rev. Gen. 947. 1891.
Perennial, with a rootstock; stem more or less silky-canescent, 3-10 dm. high, striate, usually canescent, branched; leaves 1-1.5 dm. long, ascending; stipules membranous, ovate, deciduous; petioles 0.51.5cm. long; leaflets 11-21, oblong, obtuse, 1.2-5 cm. long, 2-5 mm. wide, silky-canescent, at least when young; peduncles 1-1.5 dm. long, strict; racemes in flower 5-8 cm. long, in fruit about 1 dm. long; bracts subulate; pedicels 4—5 mm. long; calyx oblongcampanulate, sericous, 8-9 mm. long; lobes subulate, half as long as the tube; corolla greenishwhite or ochroleucous, about 18 mm. long; pod stipitate, the stipe 5-6 mm. long, somewhat pubescent, the body obliquely lanceolate in outline, somewhat compressed, acutish on the sutures, glabrous, membranous, distinctly acute at the apex, attenuate at the base, 3-4 cm. long, 12-13 mm. wide; seeds dark-brown, obliquely obovate-reniform, 3 mm. long, 2 mm. wide.
Type locality: Arroyo del Puerto, in the Mt. Diabolo Range, California. Distribution: Coast-ranges of central and southern California.

Perennial, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodules present, Stems erect or ascending, 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 ent ire, 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 white, Petals ochroleucous, cream colored, Petals orange or yellow, Banner petal narrow or oblanceolate, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style persistent in fruit, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit tardily or weakly dehiscent, Fruit oblong or ellipsoidal, Fruit exserted from calyx, Fruit inflated or turgid, Fruit beaked, Fruit glabrous or glabrate, Fruit hairy, Fruit 11-many seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brow n, or black.

Astragalus oxyphysus (lat. Astragalus oxyphysus) — paxlakimilər fəsiləsinin gəvən cinsinə aid bitki növü.

Astragalus oxyphysus is a species of milkvetch known by the common name Diablo milkvetch. It is endemic to central California, where it grows in dry grassland and scrub habitat in the Central Valley and the adjacent Inner Coast Ranges and Sierra Nevada foothills.

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

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