Lupinus argenteus var. hillii
Lupinus argenteus var. utahensis
Kellogg's spur 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;
petiole of proximal cauline leaves 3–12 cm;
leaflet blade surfaces silky-pubescent.
(1–)2–5(–6) mm.
2–5 mm.
6–8 mm;
calyx bulge 0–1 mm;
corolla blue-purple, wings 5.5–7 mm, banner equaling wings, usually thinly strigulose abaxially.
8–11 mm, in profile appearing closed;
calyx spur 1–3 mm, less pronounced;
corolla lavender or blue-purple, banner densely hairy abaxially.
= 48.
= 48.
Lupinus argenteus var. hillii
Lupinus argenteus var. utahensis
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 utahensis is widespread within Bonneville Basin in southeastern Idaho, Nevada, and Utah. It extends into the Owyhee Desert and lake sections in southwestern Idaho and southeastern Oregon, westward in Nevada to Pershing and northern Nye counties and eastward in Utah to the periphery of the Colorado Basin in Colorado and Montana. The variety is silky and spurred, with basal leaves at flowering.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
OR
Flora NW
PNW Herbaria
