Lupinus lepidus var. cusickii
Vasc. Pl. Pacif. N.W. 3: 315. 1961.
IllustratedEndemicConservation concern
Basionym: Lupinus cusickii S. Watson Proc. Amer. Acad. Arts 22: 469. 1887
Synonyms: L. aridus var. cusickii (S. Watson) C. P. Smith L. lepidus subsp. cusickii (S. Watson) Detling L. longivallis C. P. Smith
Treatment appears in FNA Volume 11.
Herbs 5(–10) cm, canescent, taprooted. Stems ascending-erect, several from taproot, profusely branched at base, elongated stem internode 1–3 cm. Leaves basal and cauline; leaflet blades 10–25 mm, surfaces hairy. Peduncles 1–6 cm (together with racemes 2–10 cm); bract 2–3.5 mm. Racemes 2–10 cm, not exserted beyond leaves, or only partially so, loose. Pedicels 2.5–4 mm. Flowers in 6–9 whorls, 7–10 mm; corolla bluish, banner not or scarcely recurved, 2.5–3 mm wide. 2n = 48.
Phenology: Flowering Jul.
Habitat: Barren tuffaceous or gravelly clay bluffs and gullied riverbanks, usually associated with junipers, sagebrush, and Eriogonum.
Elevation: 1300–1500 m.
Discussion
Variety cusickii is known from a few populations near Unity in Baker County, Oregon (K. A. Weitemier 2010) and near Donnelly and McCall in Valley County, Idaho.
Selected References
None.
Lower Taxa
None.