Annual (may live 2 seasons in North Coast), 1–4 dm, hairy. Leaf: petiole 1–7 cm; leaflets 5–7, 10–40 mm, 1–5 mm wide, occasionally linear, adaxially generally ± glabrous. Inflorescence: 1–8 cm, flowers in (0)5 whorls; peduncle 3–10 cm; pedicels 1–3.5 mm; bract 4–6 mm. Flower: 4–10 mm; calyx upper lip 2–4 mm, deeply lobed, lower 4–6 mm; petals generally blue (light blue, pink, or white), banner spot white, in age magenta, keel ± white, generally pointed, upper margins generally ciliate near tip. Fruit: 1–3 cm, generally 3–6 mm wide, hairy. Seed: 5–8.

2n=48. Abundant. Open or disturbed areas; < 1600 m. California Floristic Province, Mojave Desert; to British Columbia, Baja California; naturalized in Arizona. Highly variable, needs study; named subspecies and varieties ± indistinct in geography, morphology. Vigorous plants with larger flowers may be confused with Lupinus nanus. Mar–Jun [Online Interchange]

Lupinus bicolor Lindley Annual Lupine, Bicolored lupine, Lupine, miniature lupine Lupinus bicolor, a dicot, is an annual or perennial herb that is native to California and is also found outside of California, but is confined to western North America. Communities: Coastal Strand, Northern Coastal Scrub, Closed-cone Pine Forest, Douglas-Fir Forest, Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Mixed Evergreen Forest, Foothill Woodland, Valley Grassland, Joshua Tree Woodland Habitat: coastal [Walker] Toxicity: MAJOR [California Poison Control System 2010] Elevation: between 0 and 8500 feet Family: FABACEAE Related: See a list of other species in the genus Lupinus found in California. Name Status: Accepted by TJM2 + PLANTS + JM93 Other Names: ICPN: Lupinus congdonii ICPN: Lupinus polycarpus ICPN: Lupinus rostratus ICPN: Lupinus sabulosus ICPN: Lupinus umbellatus

Bloom Period