Lupinus bicolor has a short, hairy stem and thin, palmately-arranged leaves. The
inflorescence is short for a lupine, at up to tall. As its name suggests the flowers are usually two colors, with one often a deep blue. The other color is often white and sometimes a light purple or magenta. There are sometimes small speckles or spots on the petals. The plant's hairy pods are quite small, only a couple of centimeters long and very thin, and they contain tiny brownish peas.
Varieties This plant can be variable in appearance, and there are several varieties/subspecies whose relationships are as yet unclear.
Varieties include: •
Lupinus bicolor var.
rostratus —
endemic to California. •
Lupinus bicolor var.
tridentatus — endemic to California. •
Lupinus bicolor var.
trifidus — endemic to California. •
Lupinus bicolor var.
umbellatus — endemic to California. ==Cultivation==