Astragalus grayi Parry ex S. Wats.

Cnemidophacos grayi (Parry) Rydberg
Astragalus Grayi Parry; S. Wats. Am. Nat. 8: 212. 1874. Tragacantha Grayi Kuntze, Rev. Gen. 945. 1891. Ctenophyllum Grayi Rydb. Bull. Torrey Club 40: 50. 1913.
A perennial, with a woody root and short cespitose caudex; stems several, erect and strict, 3-4 dm. high, sulcate, sparingly strigose; leaves ascending, 5-8 cm. long, the rachis grooved above, sparingly strigose; stipules connate, deltoid, 6-S mm. long; leaflets 7-9, linear, 2-3 cm. long, 3-5 mm. wide, firm, veined, acute at the base, obtuse at the apex, sessile; peduncles 5-8 cm. long, strict; racemes dense, 4—5 cm. long; bracts lanceolate, 4—6 mm. long; pedicels about 2 mm. long; calyx black-hairy, the tube 8 mm. long, 4 mm. broad, the teeth lance-subulate, 3-4 mm. long; corolla ochroleucous, about 2.5 cm. long; banner ovate, only slightly arcuate; wings fully 2 cm. long, the blades oblong, scarcely falcate, with a reflexed auricle; keel-petals much shorter, about 16 mm. long, the blade obliquely obovate, with a reflexed auricle, the apex of the keel strongly incurved, obtuse; pod oblong-ovoid, rounded at the base, abruptly acuminate at the apex, cross-reticulate, 1 cm. long, 4-5 mm. thick and wide.
Type locality: Owl Creek Valley, Wyoming.
Distribution: Wyoming.

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 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 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 glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, 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 unilocular, Fruit freely dehiscent, Fruit oblong or ellipsoidal, Fruit rugose wrinkled or reticulate, Fruit or valves persistent on stem, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit beaked, Fruit glabrous or glabrate, Fruit hairy, Fruit 3-10 seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black, Astragalus grayi 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 connate to each other, forming a tuber or sheath, 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, 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 oblon g, 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 unilocular, Fruit freely dehiscent, Fruit oblong or ellipsoidal, Fruit rugose wrinkled or reticulate, Fruit or valves persistent on stem, Fruit fleshy, Fruit coriaceous or becoming woody, Fruit exserted from calyx, 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 grayi es una especie de planta herbácea perteneciente a la familia de las leguminosas. Es originaria de Estados Unidos.

Detalle

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

Astragalus grayi là một loài thực vật có hoa trong họ Đậu. Loài này được S.Watson miêu tả khoa học đầu tiên.