Torrey's Milkvetch

Hamosa manca Rydb. Bull. Torrey Club 54: 17. 1927
An acaulescent tufted cespitose perennial, with a short woody caudex; stems less than 1
cm. long; leaves 1.5-2 cm. long; stipules deltoid, 2 mm. long; leaflets 6-1 1, elliptic-oblanceolate,
2-4 mm. long, 1-2 mm. wide, acute or obtusish, silvery-canescent ; peduncles slender, 2-5 cm.
long; racemes 1or 2(rarely 3-) flowered; bracts lanceolate, 1 mm. long; calyx campanulate,
silvery-strigose, the tube 3-4 mm. long, the teeth deltoid, 1 mm. long; corolla about 1 cm.
long, ochroleucous, the keel tipped with purple; banner broadly obovate, deeply notched;
wings of about the same length, broad, 2-lobed at the apex ; keel-petals broadly lunate, rounded
at the apex; pod oblong-ovate, about 1 cm. long and 4 mm. wide, sericeous.
Type locality: Clover Mountains, Nevada, near Death. Distribution: Northeastern Nevada.

Hamosa calycosa (Torr.) Rydb. Bull. Torrey Club 40: 50. 1913
Astragalus calycosus Torr.; S. Wats. Bot. King's Expl. 66. 1871.
Tragacantha calycosa Kuntze, Rev. Gen. 943. 1891.
Astragalus brevicaulis A. Nelson, Bull. Torrey Club 26: 9. 1899.
A subacaulescent, densely cespitose perennial, with woody caudex; leaves numerous, 2-6 cm. long; stipules deltoid, 3-5 mm. long; leaflets 3-7, oblong, oblanceolate, or obovate, 2-10 mm. long, silvery-silky on both sides, obtuse or acute; peduncles 2-5 cm. long; racemes 2-6flowered; bracts ovate, 1-2 mm. long; pedicels 1-3 mm. long; calyx silvery-silky, the tube 4 mm. long, the teeth subulate-lanceolate, 2-3 mm. long; corolla white or purple, about 15 mm. long; banner broadly obovate, abruptly arched, deeply notched; wings slightly shorter, the blade obovate, deeply 2-lobed at the apex, with a large rounded auricle; keel-petals much shorter, the blade strongly arched above, with a rather indistinct auricle; pod oblong, acute, slightly arcuate, about 15 mm. long, 4 mm. wide and 3 mm. thick, strigose-canescent, slightly sulcate on the lower suture, cordate in cros-ssection.
Type locality: West Humboldt Mountains, Nevada. Distribution: Western Wyoming and Idaho to eastern California.

Perennial, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodule s 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, Stems silvery, canescent, tomentose, cobwebby, or wooly, Stems with 2-branched hairs, dolabriform, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules membranous or chartaceous, Stipules persistent, Stipules free, Leaves compound, Leaves palmately 2-3 foliate, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 3, 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 glabrous, Petals separate, Corolla papilionaceous, Petals 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 nar row, oblanceolate to oblong, Wing petals auriculate, 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 freely dehiscent, Fruit oblong or ellipsoidal, 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.