Astragalus vallaris M. E. Jones

Hesperonix vallaris (M. E. Jones) Rydberg
Astragalus vallaris M. E. Jones, Contr. W. Bot. 10: 59. 1902.
A perennial; stems glabrous, 2-4 dm. high, sulcate; leaves about 1 cm. long, ascending; stipules lanceolate, 3 mm. long ; leaflets 15-19, obovate or elliptic, glabrous, cuneate at the base, truncate or retuse at the apex, 10-16 mm. long; peduncles 5-10 cm. long; racemes 3-5 cm. long; bracts lanceolate, ovate, 2 mm. long; calyx sparingly black-hairy, the tube about 5 mm. long, the teeth subulate, 3-4 mm. long; corolla white, 18 mm. long; banner ovate-lanceolate, moderately arcuate; wings shorter, the blade linear; keel-petals much shorter, broadly lunate, purpletipped; pod coriaceous, glabrous, stipitate, the stipe 8 mm. long, the body ellipsoid, about 3 cm. long, 12 mm. thick and 8 mm. wide, cross-reticulate, acute at each end.
Type locality: Snake River Canon, near Ballard's Landing, Oregon.
Distribution: Eastern Oregon.

Perennial, Herbs, Stems woody below, or from woody crown or caudex, 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, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules membranous or chartaceous, Stipules persistent, Stipules free, Stipules clasping stem at the base, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, L eaflets opposite, 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 hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, 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 humistrate, lying on the ground, Fruit tardily or weakly dehiscent, Fruit oblong or ellipsoidal, Fruit rugose wrinkled or reticulate, Fruit fleshy, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit inflated or turgid, Fruit beaked, Fruit glabrous or glabrate, Fruit 11-many seeded, Seed s cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.