OregonFlora: Lupinus lepidus

	Lupinus lepidus
	Pacific lupine, prairie lupine
Habit	Plants perennial, acaulescent, subacaulescent, shortly-caulescent, or caulescent, sometimes mat-forming, 0.5–5(6) dm.
Stems	prostrate to erect, not woody, pubescent.
Leaves	mostly basal; leaflets 5–8, 5–40 × 2–10 mm, oblanceolate to narrowly obovate; surfaces sericeous to strigose; petioles 10–120(150) mm.
Inflorescences	(1)1.5–20(25) cm; peduncles 0–15(20) cm; pedicels 1–3(4) mm.
Flowers	calyces 4–8 mm, not spurred; lips equal to subequal; corollas 6–11 mm, blue, purple, or pink; banners cup type; spot white or yellow.
Fruits	0.9–2 cm, pubescent.
Seeds	2–5.

	Lupinus lepidus
Distribution	[WildflowerSearch map] [BONAP county map]
Discussion	Western United States. 11 varieties; 7 varieties treated in Flora. The varietal taxa within this species are arguably arbitrary and extraneous. However, since L. l. var. cusickii is a listed federal and state taxon, we include the varieties here.
Source	Flora of Oregon, volume 2 draft Paul Severns, Stephen Meyers, Christopher Royce
Sibling taxa	L. affinis, L. albicaulis, L. albifrons, L. arboreus, L. arbustus, L. arbustus x Lupinus oreganus, L. arbustus x Lupinus sericeus, L. argenteus, L. bicolor, L. brevicaulis, L. breweri, L. latifolius, L. leucophyllus, L. leucophyllus x Lupinus sericeus, L. littoralis, L. luteolus, L. microcarpus, L. nevadensis, L. onustus, L. oreganus, L. polyphyllus, L. pusillus, L. rivularis, L. sabinianus, L. sericeus, L. sulphureus, L. tracyi, L. uncialis
Subordinate taxa	L. lepidus var. aridus, L. lepidus var. ashlandensis, L. lepidus var. cusickii, L. lepidus var. lepidus, L. lepidus var. lobbii, L. lepidus var. sellulus, L. lepidus var. utahensis
Synonyms	Lupinus aridus, Lupinus lyallii
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Lupinus lepidus

Pacific lupine, prairie lupine

Habit

Plants perennial, acaulescent, subacaulescent, shortly-caulescent, or caulescent, sometimes mat-forming, 0.5–5(6) dm.

Stems

prostrate to erect, not woody, pubescent.

Leaves

mostly basal;

leaflets 5–8, 5–40 × 2–10 mm, oblanceolate to narrowly obovate;

surfaces sericeous to strigose;

petioles 10–120(150) mm.

Inflorescences

(1)1.5–20(25) cm;

peduncles 0–15(20) cm;

pedicels 1–3(4) mm.

Flowers

calyces 4–8 mm, not spurred;

lips equal to subequal;

corollas 6–11 mm, blue, purple, or pink;

banners cup type; spot white or yellow.

Fruits

0.9–2 cm, pubescent.

Seeds

2–5.

Lupinus lepidus

Distribution

[WildflowerSearch map]

[BONAP county map]

Discussion

Western United States. 11 varieties; 7 varieties treated in Flora.

The varietal taxa within this species are arguably arbitrary and extraneous. However, since L. l. var. cusickii is a listed federal and state taxon, we include the varieties here.

Source

Flora of Oregon, volume 2 draft
Paul Severns, Stephen Meyers, Christopher Royce

Sibling taxa