Lupinus arbustus Douglas ex Lindl.
Annotated May 2012. Sources: IMF.

Idaho: Blaine County: Lake Alturas Sawtooth Valley
43.914167° N, 114.86039° W,
Datum: WGS 84. Uncertainty: 1904 meters. Coordinate Source: GeoLocate. State and county also georeferenced
Mt slope sandy soil. Plant: Exogenous herb, 1 to 2 ft, erect, perennial. Root: Simple primary, fibrous. Stem: Caudex terete, somewhat pubescent. Branches: Alternate, normal. Leaves: Cauline, alternate, 2/5, palmate compound, pinnate leaflets, entire. Apex acute, Base, somewhat acuminate, Short silky white appressed Pubescence, 1 inch long. Oblanceolate. Petiole: Cylindrical clasping, 1 to 5 inches long. Stipules: Foliaceous & membranous, short. Inflorescence: Axillary, raceme, scattered. Pedicels short. Flower: Complete, irregular, 3 to 5 lines, Blue or purple. Calyx: Valvate, two lipped, saccate at base, Hypogynous, deciduous. Sepals: Linear-lanceolate, purple. Corolla: Impricate, Polypetalous, Papilionaceous, Hyp. Petals: Irregular in shape and size, Purple to Blue. Stamens: Monadelphous, Hyp., included, 10. Filaments: Monadelphous tube, 2 lines long. Anthers: Innate linear (adnate introrse porous ovate) 2 celled. Pollen: Powdery. Pistils: Compound. 1. Ovary: Closed, Superior, 4 or 5 ovules. Pendulous. Style: Deciduous. green, 2 to 3 lines long. Stigma: Terminal Hairy. Fruit: Aggregate, dry. Valvular, Legume, Sept, & [illegible] of October. Seeds: Globular. 128 Phenology: Flowers.

W.R. Cupp 65, Sep 10, 1900
CIC, Accession: 8977