Lupinus argenteus var. hillii
Lupinus argenteus var. parviflorus
branched.
branched.
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.
cauline;
leaflet blades green, flat, oblanceolate, surfaces glabrous or glabrate.
several.
(1–)2–5(–6) mm.
3–4 mm.
6–8 mm;
calyx bulge 0–1 mm;
corolla blue-purple, wings 5.5–7 mm, banner equaling wings, usually thinly strigulose abaxially.
5–7.5 mm, wings 5–7.5 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. hillii
Lupinus argenteus var. parviflorus
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 parviflorus is known from southwestern Idaho, western Montana, northern Wasatch Mountains and mountainous Owyhee County in Idaho, the Black Hills in South Dakota, western Wyoming, and disjunctly on the Shivwits Plateau in northwestern Arizona (Mohave County).
The combination of small flowers, villous pedicels, and broad, green, glabrous (or nearly so) adaxial leaflet surfaces separates this variety from others of the species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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WildflowerSearch
iNaturalist
USDA Plants Database
PNW Herbaria
