Lupinus argenteus var. holosericeus
Lupinus argenteus var. rubricaulis
holo lupine, little-flower lupine, silky lupine
branched or unbranched.
unbranched.
usually cauline, basal leaves usually absent at flowering, if present then petioles less than 3 times as long as leaflets;
leaflet blades narrow and folded, oblanceolate or elliptic-oblanceolate, surfaces densely silky.
cauline;
leaflet blades green, flat, oblanceolate, surfaces glabrous or adaxially pubescent.
solitary, terminal.
(1–)2–5(–6) mm.
3–4 mm.
5–9 mm;
calyx bulge 0–1 mm;
corolla purplish blue, wings 5–7.5 mm, banner densely hairy abaxially, to middle or distally.
8–11 mm;
calyx bulge 0–1 mm, but not elongated into a spur;
corolla blue, banner spot yellow, glabrous or hairy abaxially.
= 48.
= 48.
Lupinus argenteus var. holosericeus
Lupinus argenteus var. rubricaulis
Variety holosericeus is known from the Ruby Mountains of northeastern Nevada through the middle and lower Snake River plains and Owyhee Desert in southern Idaho and adjacent Oregon, northern Nevada, western Colorado, and northeastern Utah.
This variety is close to var. utahensis, but the flowers are smaller, and the calyx is not spurred.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety rubricaulis ranges from British Columbia to Montana, southward into northeastern Nevada, the Uinta and Wasatch mountains in Utah, Apache and Coconino counties in Arizona, and western Colorado. It is very similar to var. argenteus but found in more moist or mesic habitats.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
CalFlora
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
