meadow lupine

Lupinus polyphyllus ssp. polyphyllus

Member of large-leaved lupine (Lupinus polyphyllus)
lupines (genus Lupinus)
legume family (family Fabaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

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CalPhotos

• habit: perennial herb 20–150 cm, green, glabrous or sparsely hairy
• stem: erect, stout, generally hollow
• leaf: basal and cauline; stipules 5–30 mm; petioles 3–45 cm, upper shorter; leaflets 9–17, 40–150 mm, abaxially ± strigose, adaxially glabrous
• inflorescence: 6–40 cm, open, flowers ± whorled; peduncle 3–13 cm; pedicels 3–15 mm; bract 7–11 mm
• flower: 9–15 mm; calyx lips 4–7 mm, entire; petals violet to lavender to pink to white, banner back glabrous, spot yellow to white occasionally turning red-purple
• keel upcurved, generally glabrous
• rare, in cooler areas

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.

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Chris’s observations: none

Not all sites agree about the scientific name:

• Lupinus polyphyllus ssp. polyphyllus → iNaturalist
• Lupinus polyphyllus var. polyphyllus → Calflora – CalPhotos – Jepson eFlora
• not yet listed → FNA

Bay Area species: iNaturalist – Calflora