Lupinus latifolius
Lupinus dalesiae
broad-leaf lupine
Quincy lupine
erect or spreading, branched or unbranched.
ascending or erect, branched.
cauline, basal when present withered by anthesis;
stipules 5–10 mm;
petiole 4–20 cm;
leaflets 5–11, blades 40–100 × 6–24 mm, abaxial surface ± hairy, adaxial surface glabrous or hairy.
cauline;
stipules 6–16 mm;
petiole 1–3 cm;
leaflets 6–9, blades 20–45 × 3–8 mm, adaxial surface tomentose, hairs silvery.
16–60 cm;
flowers whorled or spirally arranged.
5–16 cm;
flowers ± whorled.
8–20 cm;
bracts deciduous, 8–12 mm.
2–5 cm;
bracts deciduous, 5–9 mm.
2–12 mm.
2–5.5 mm.
8–18 mm;
calyx abaxial lobe entire or notched, 4–8 mm, adaxial lobe entire or 2-toothed, 5–10 mm;
corolla blue or purple to white, banner patch usually white to yellowish turning purple, banner glabrous abaxially, lower keel margins usually ciliate, adaxial margin ciliate from claw to middle.
9–12 mm;
calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–7 mm, adaxial lobe 2-toothed, 4–7 mm;
corolla usually yellow, banner hairy abaxially, keel ± glabrous.
2–4.5 cm, ± densely hairy.
2–3 cm, strigose.
deciduous, petiolate.
deciduous, petiolate.
6–10, mottled dark brown, 3–4 mm.
3–5, tan, 3–5 mm.
Lupinus latifolius
Lupinus dalesiae
Varieties 5 (5 in the flora).
Various authors have differed in their circumscriptions of Lupinus latifolius. For example, P. K. Vaughn and D. B. Dunn (1977) recognized three varieties, D. Isely (1998) recognized six varieties, and C. L. Hitchcock et al. (1955–1969, vol. 3) recognized three varieties. The most conservative approach has been taken here by recognizing taxa that have the clearest characteristics, but that approach might not reflect phylogeny. Research is needed to clarify the varieties and particularly the relationships among L. latifolius and L. arcticus, L. perennis, and L. polyphyllus.
Lupinus latifolius is known to cause birth defects in livestock (R. F. Keeler et al. 1977).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Lupinus dalesiae is known only from the high Sierra Nevada in Plumas County. It is distinctive with its white pubescence, yellow flowers, and banner that is hairy abaxially.
P. A. Munz (1959) treated Lupinus dalesiae as a synonym of L. adsurgens var. undulatus C. P. Smith, but L. adsurgens has a banner that is glabrous abaxially.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Flowers 8–14 mm. | → 2 |
2. Flowers 10–14(–16) mm. | var. latifolius |
2. Flowers 8–10(–12) mm. | var. viridifolius |
1. Flowers 12–18 mm. | → 3 |
3. Stems densely hairy, not hollow; San Francisco Bay area, California. | var. dudleyi |
3. Stems glabrate or sparsely strigose, hollow; sw California or n Oregon to British Columbia. | → 4 |
4. Herbs 5–20 dm, caudex often unbranched; Arizona, California. | var. parishii |
4. Herbs 2.5–6 dm, caudex branched; n Oregon to British Columbia. | var. subalpinus |
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
