Lupinus polyphyllus Lindl. is a perennial herbaceous plant of the Fabaceae family. The stem is upright, branching into clusters, and the whole plant is hairless or sparsely covered with soft hairs on the upper part; The petiole is much longer than the leaflets; The small leaves are elliptical and lanceolate in shape, with a blunt rounded to sharp tip. They are usually hairless on the top and covered with some covered hairs on the bottom; The inflorescence is much longer than the compound leaves; Flowers are abundant and dense, growing together; Bracts ovate lanceolate, hairy, early abscission; The pod is oblong in shape, densely covered with silk hairs; The seeds are oval in shape, gray brown in color, with dark brown markings, and smooth. The flowering period is from June to August, and the fruiting period is from July to October.