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Photo is of parent taxon
Photo is of parent taxon

silver bush lupine, silver lupine, white-leaf lupine

Habit Herbs or subshrubs, herbaceous toward base, 2–5 dm, usually silver-hairy. Shrubs, 5–50 dm, usually with distinct trunk, green to silvery.
Leaves

silver-hairy;

petiole 4–15 cm.

silver-silky;

petiole 2–5 cm.

Racemes

14–40 cm.

8–30 cm.

Inflorescence

bracts 8–9 mm.

bracts 4–8 mm.

Flowers

14–18 mm.

10–14 mm.

Lupinus albifrons var. austromontanus

Lupinus albifrons var. albifrons

Phenology Flowering May–Jul. Flowering Mar–Jun.
Habitat Dry slopes, upper chaparral and yellow pine forests. Chaparral, foothill woodlands.
Elevation 1000–3000 m. (3300–9800 ft.) 0–1500 m. (0–4900 ft.)
Distribution
from FNA
CA; Mexico (n Baja California)
from FNA
CA; OR
[BONAP county map]
Discussion

Variety austromontanus is known from the Tehachapi Mountains southward to northern Baja California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety albifrons is known from much of coastal California, the Sierra Nevada Foothills, and southern Oregon (cismontane).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus > Lupinus albifrons Fabaceae > subfam. Faboideae > Lupinus > Lupinus albifrons
Sibling taxa
L. albifrons var. abramsii, L. albifrons var. albifrons, L. albifrons var. collinus, L. albifrons var. douglasii, L. albifrons var. hallii, L. albifrons var. johnstonii, L. albifrons var. medius
L. albifrons var. abramsii, L. albifrons var. austromontanus, L. albifrons var. collinus, L. albifrons var. douglasii, L. albifrons var. hallii, L. albifrons var. johnstonii, L. albifrons var. medius
Synonyms L. austromontanus, L. excubitus subsp. austromontanus, L. excubitus var. austromontanus L. albifrons var. eminens, L. albifrons var. fissicalyx, L. brittonii, L. eminens, L. fissicalyx, L. fragrans
Name authority Jepson: Fl. Calif. 2: 252. (1936) unknown
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