Flora of North America species comparison

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Lupinus polyphyllus var. humicola
Photo is of parent taxon

Holmgrens' lupine, Wyeth's lupine
Habit Herbs 2–4.5(–7) dm, caudex above ground.
Stems

ascending, not hollow.
Leaflets

(5–)7–12, blades 30–55(–70) mm, surfaces silky-strigulose, gray or silver, often folded, appearing linear.
Flowers

upper keel margins usually ciliate.
2n

= 48.

Lupinus polyphyllus var. humicola
Phenology Flowering (Apr–)May–Jun(–Sep).
Habitat Dry desert slopes, dry washes, pinyon-juniper woodlands, grassy sites, thinly wooded sites.
Elevation 1400–2500 m. (4600–8200 ft.)
Distribution
from FNA
AZ; CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC
Discussion

Variety humicola is of conservation concern in California, where it is known only from Inyo County. In Arizona, it is known only from Navajo County, south of Lake Powell.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus > Lupinus polyphyllus
Sibling taxa
L. polyphyllus var. ammophilus, L. polyphyllus var. burkei, L. polyphyllus var. polyphyllus, L. polyphyllus var. prunophilus, L. polyphyllus var. saxosus
Synonyms L. humicola, L. arcticus var. cottonii, L. arcticus var. humicola, L. arcticus var. tetonensis, L. cottonii, L. diversalpicola, L. flavescens, L. holmgrenianus, L. humicola var. tetonensis, L. rydbergii, L. wyethii, L. wyethii subsp. tetonensis
Name authority (A. Nelson) Barneby: Great Basin Naturalist 46: 257. (1986)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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