Lupinus argenteus var. fulvomaculatus
Lupinus argenteus var. argentatus
branched.
normally branched.
usually cauline, basal leaves usually absent at flowering, if present then petioles less than 3 times as long as leaflets;
leaflet blades flat, oblanceolate, surfaces glabrous or pubescent adaxially.
mostly cauline, basal usually absent at flowering;
leaflet blades flat, oblanceolate, surfaces glabrous or adaxially pubescent.
several.
1–2.5 mm.
3–4 mm.
6–8 mm;
calyx bulge 0–1 mm;
corolla pale blue with brown banner patch, banner glabrous or hairy abaxially.
(7.5–)8–10 mm;
calyx often distinctly gibbous abaxially at base;
corolla blue, large, wings (7.5–)8–10 mm, banner spot blue or yellow, banner usually hairy abaxially.
= 48.
= 48.
Lupinus argenteus var. fulvomaculatus
Lupinus argenteus var. argentatus
Variety fulvomaculatus is known from the Abajo and La Sal mountains in southeastern Utah, mountainous Colorado, in the Santa Fe National Forest and vicinity in New Mexico, and in northeastern Apache County, Arizona, where it is rare.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety argentatus is known from the Rocky Mountains in Colorado to Idaho, Montana, and Wyoming, southward to Arizona and New Mexico, and in the Wasatch and Utah plateaus, from Salt Lake to eastern Iron County, Utah. In Arizona, it is apparently restricted to the Kaibab Plateau, where it is rare.
Variety argentatus can be separated from the other varieties by the absence of a spur and its abaxially gibbous calyx. The herbs are mesomorphic plants of cool, moist or wet mountain meadows, the leaflets are green, flowers are relatively large, wings are 7.5–10 mm, and the stems are branched.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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