Parry's Milkvetch

Batidophaca parryi (A. Gray) Rydberg
Astragalus succumbens T. & G. Pacif. R. R. Rep. 2: 163. 1855. Not. A. succumbens Dougl. 1831. Astragalus Parryi A. Gray, Am. Jour. Sci. II. 33: 410. 1862. Tragacantha Parryi Kuntze, Rev. Gen. 947. 1891. Xylopbacos Parryi Rydb. Bull. Torrey Club 32: 662. 1906.
A perennial, with a taproot and short caudex, densely cespitose; stems numeious, decumbent, 1-2 dm. long, pilose with long slender spreading hairs; leaves spreading, 5-12 cm. long; stipules deltoid, 6-10 cm. long, acuminate, green, pilose; leaflets 19-25, elliptic to suborbicular, 7-15 mm. long, obtuse or cuneate at the base, rounded or those of the earlier leaves retuse at the apex, bright-grten, more or less pilose on both sides; peduncles 3-5 cm. long; racemes short, 6-10-flowered; bracts subulate, 3-5 mm. long; calyx villous-pilose, the tube 4-5 mm. long, the teeth subulate, 5 mm. long; coiolla white, about 15 mm. long; banner obovate, tapering to a claw-like base, rounded or broadly retuse at the apex; wings about 12 mm. long, the blade obliquely obovate, about as long as the slender claw, with a rather large rounded auricle; keel-petals similar but moie oblique, slightly shorter, rounded at the apex, with a smaller auricle and a broader claw; pod leathery, cross-reticulate, pilose, lanceolate in outline, long-acuminate, arcuate, somewhat depressed, strongly sulcate on the lower sutuie, the upper suture slightly sulcate at least at the base, 2.5-3 cm. long, 5 mm. wide and 7 mm. thick.
Type locality: Gravelly banks along Clear Creek, Colorado. Distribution: Colorado and southern Wyoming.

Perennial, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodules present, Stems very short, acaulescent or subacaulescent, 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 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, Flowers in axillary clusters or few-floweredracemes, 2-6 flowers, 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 ochroleucous, cream colored, 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 unilocular, Fruit humistrate, lying on the ground, Fruit freely dehiscent, Fruit oblong or ellipsoidal, Fruit strongly curved, falcate, bent, or lunate, Fruit rugose wrinkled or reticulate, Fruit coriaceous or becoming woody, Fruit exserted from calyx, 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 parryi adalah spesies tumbuhan yang tergolong ke dalam famili Fabaceae. Spesies ini juga merupakan bagian dari ordo Fabales. Spesies Astragalus parryi sendiri merupakan bagian dari genus Astragalus. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh A.Gray.

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