Astragalus asclepiadoides M. E. Jones

Jonesiella asclepiadoides (M. E. Jones) Rydb. Bull. Torrey Club 32: 661. 1906.
Astragalus asclepiadoides M. E. Jones, Zoe 2: 238. 1891.
A perennial, with a woody root; stems several, 3-5 dm. high, striate or sulcate, glabrous, stout; leaves unifoliolate, almost sessile; stipules large, deltoid, membranous, 5-8 mm. long; leaflet suborbicular, cordate at the base, 2-4 cm. long and as wide, 5-9-ribbed, thin, glabrous; peduncles 2-5 cm. long, sulcate; bracts lanceolate; flowers 5-10, ascending; calyx sparingly black-hairy or glabrate, the tube cylindric, 10-12 mm. long, the teeth subulate, 3 mm. long; corolla white, about 2 cm. long; banner narrowly obovate, moderately arched; wings shorter, the blade lunate, acutish, with a long reflexed auricle; keel-petals still shorter, the blade broadly lunate, rounded at the apex, with a smaller auricle; pod long-stipitate, the stipe 1.5-2 cm. long, erect, the body broadly lance-ellipsoid, 3-4 cm. long, more than 1 cm. wide and fully 1.5 cm. thick, more gradually tapering at the upper end than at the lower end, slightly sulcate on both sutures, the septum about 1 mm. wide.
Type locality: Price River, eastern Utah.
Distribution: Utah.

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 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 simple, or appearing so, Leaf or leaflet margins entire, Leaflets 1, Leaves hairy on one or both surfaces, Leaves coriaceous, Inflorescences racemes, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Bracts very small, absent or caducous, Flowers zygo morphic, Calyx 5-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals orange or yellow, 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, 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 or valves persistent on stem, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit inflated or turgid, Fruit beaked, Fruit glabrous or glabrate, Fruit 11-many seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.

Astragalus asclepiadoides adalah spesies tumbuhan yang tergolong ke dalam famili Fabaceae. Spesies ini juga merupakan bagian dari ordo Fabales. Spesies Astragalus asclepiadoides sendiri merupakan bagian dari genus Astragalus. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh M.E.Jones.

Astragalus asclepiadoides là một loài thực vật có hoa trong họ Đậu. Loài này được M.E.Jones miêu tả khoa học đầu tiên.