Lupinus argenteus var. hillii
Lupinus argenteus var. montigenus
silvery lupine
branched.
branched or 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 gray or silvery-pubescent.
basal and cauline;
proximal petioles usually (5–)7–9(–15) cm;
leaflet blades narrow and folded, oblanceolate or elliptic-oblanceolate, surfaces gray or silvery-pubescent with silky hairs.
(1–)2–5(–6) mm.
4–5(–6) mm.
6–8 mm;
calyx bulge 0–1 mm;
corolla blue-purple, wings 5.5–7 mm, banner equaling wings, usually thinly strigulose abaxially.
9–12(–14) mm;
calyx bulge less than 1 mm;
corolla blue to violet, banner patch yellow to cream, hairy abaxially.
= 48.
= 48.
Lupinus argenteus var. hillii
Lupinus argenteus var. montigenus
Variety hillii is the small-flowered form that occurs in the Southwest in which the flowers are budlike and scarcely gaping.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety montigenus is found along the eastern face of the Sierra Nevada from the Rock Creek Basin in Inyo County, California, to Washoe County, Nevada.
Variety montigenus can be differentiated by its long-petioled basal leaves at flowering, absence of a calyx spur, and open large flowers with banners that are hairy abaxially.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
