Lupinus argenteus var. hillii
Lupinus argenteus var. heteranthus
Kellogg's spur lupine, silvery lupine, tailcup 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, sometimes also cauline;
leaflet blade surfaces densely silver-silky.
(1–)2–5(–6) mm.
(1–)2–5(–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.
8–14 mm, in profile appearing open;
calyx spur 1–2 mm (pronounced);
corolla violet or blue to white, banner silky abaxially, wings glabrous.
= 48.
= 48.
Lupinus argenteus var. hillii
Lupinus argenteus var. heteranthus
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 heteranthus ranges from the Cascades in Oregon southward through the Sierra Nevada and eastward to Mono County, and disjunctly in the San Gabriel Mountains, in California, and is widespread over the western one-fourth of the intermountain region from Steens Mountain and eastern Lake County in Oregon eastward to Humboldt, Pershing, and Nye counties in Nevada. It grades in the northeast into var. utahensis and in the southeast into var. palmeri and var. argenteus in Idaho.
Variety heteranthus differs from var. utahensis by the more pronounced calyx spur and the more widely gaping flowers.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
OR
Flora NW
PNW Herbaria
