butter lupine
Lupinus luteolus
Member of
lupines (genus Lupinus)
legume family (family Fabaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)
CalPhotos
- habit: annual 30–75 cm, sparsely hairy or in age glabrous, appearing glaucous; cotyledons disk-like, persistent [example] at plant base, or leaving circular scar
- stem: hard, rigid
- leaf: petiole 2–5 cm; leaflets 7–9, 10–30 mm, 4–9 mm wide, adaxially generally hairy
- inflorescence: 5–22 cm, flowers in generally crowded whorls; peduncle 4–15 cm; pedicels 1–3 mm; bracts 5–11 mm, reflexed, hairy, persistent
- flower: 10–16 mm; calyx upper lip 3–5 mm, lower 6–10 mm, appendages generally 0; petals generally pale yellow (± pink or bright blue), wings generally ciliate on upper (lower) margins near claw
- keel upper, lower margins equally ± densely ciliate
- Jasper, Alum Rock, Grant, Mt. Diablo foothills
Toxicity of blue bonnet, lupine (Lupinus spp.):
4 – Ingestion of these plants, especially in large amounts, is expected to cause serious effects to the heart, liver, kidneys or brain. If ingested in any amount, call the poison center immediately.
Chris’s observations: none
Not all sites include this taxon:
Bay Area species:
iNaturalist
–
Calflora
