Herbs, perennial, (1–)4–10(–12) dm, hairs appressed to spread­ing, sparse to dense; cau­dex sub­terranean, woody. Cotyle­dons deciduous, petio­late. Stems ascending to erect, clus­tered, unbranched or branched, sometimes thick, hol­low. Leaves cauline; stipules 1–8 cm; proximal petioles 3–8.5 cm, distal ones 2–7 cm; leaflets 5–8(–15), blades (10–)20–50(–70) × 5–15 mm, abaxial surface long-villous, adaxial surface usually glabrous or glabrate. Peduncles (1–)4–9.5 cm; bracts deciduous, 1–5 mm. Racemes 1.8–30 cm; flowers in 1–15 whorls. Pedicels 1–8 cm. Flowers 11–21 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or deeply lobed, 6–12 mm, adaxial lobe 2-lobed or cleft less than 1/3 length, 6–8 mm; corolla usually bluish purple, sometimes pink, rarely white, banner glabrous abaxially, adaxial keel glabrous or densely ciliate along most of adaxial edge. Legumes 3–6 cm, silky. Seeds 7–11.

Distribution

n North America, Europe, Atlantic Islands (Iceland).

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Lower Taxa

Lupinus nootkatensis var. fruticosus, Lupinus nootkatensis var. nootkatensis

Key

1	Hairs spreading, long and shaggy; stems 10–15 mm diam.; bracts 16–19 mm.	Lupinus nootkatensis var. nootkatensis
1	Hairs finely silky-sericeous; stems 6–7(–9) mm diam.; bracts 7–13 mm.	Lupinus nootkatensis var. fruticosus