Astragalus breweri A. Gray

Astragalus breweri A. Gray, Proc. Am. Acad. 6: 207. 1864; Proc. Calif. Acad. 3: 103. 1864.
Tragacanlha Breweri Kuntze, Rev. Gen. 943. 1891.
An annual; stem erect, branched, 1-2 dm. high, sparingly hispid-pubescent; leaves ascending or spreading, 3-5 cm. long; stipules deltoid, 2-3 mm. long; leaflets 9-11, cuneate-obovate or cuneate-oblong, sparingly strigose beneath, glabrous above, 4-10 mm. long, truncate or retuse at the apex; peduncles 4-6 cm. long, sparingly black-hispidulous; racemes dense, headlike; bracts ovate, 1 mm. long; calyx black -hairy, the tube campanulate, 3 mm. long, the teeth subulate, 2 mm. long; corolla purplish, or white, about 1 cm. long; banner obovate, deeply retuse, strongly arched at the middle; wings much shorter, the blade oblong, Talcate, longer than the claw, with a large reflexed auricle; keel-petals about half as long as the banner, the blade broadly lunate, more strongly arched towards the rounded apex, tipped with darkpurple; pod erect, densely silky, sessile, coriaceous, the body lance-ovoid in outline, 10-12 mm. long, 3-4 mm. wide and thick, tapering into a straight beak, as long as the body, the upper suture acute, the lower deeply sulcate, the cross-section cordate; seeds few.
Type locality: Sonoma Valley, California.
Distribution: Central California.

Annual, Herbs, Taproot present, Nodules present, Stems very short, acaulescent or subacaulescent, Stems erect or ascending, Stems less than 1 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules membranous or chartaceous, Stipules persistent, Stipules free, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 5-9, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Bracts very small, absent or caducous, Flowers zygomorphic, Calyx 5-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, P etals clawed, Petals white, Petals blue, lavander to purple, or violet, Petals bicolored or with red, purple or yellow streaks or spots, 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 tardily or weakly dehiscent, Fruit oblong or ellipsoidal, Fruit exserted from calyx, Fruit beaked, Fruit hairy, Fruit 3-10 seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.

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

Astragalus breweri is a species of milkvetch known by the common name Brewer's milkvetch. It is endemic to northern California, where it is found in several counties surrounding the north edge of the San Francisco Bay Area. It grows in open habitat in the North Coast Ranges, sometimes on serpentine soils.

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

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