Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Lupinus argenteus


Silvery lupine, Silver-stem lupine


Fabaceae (Pea Family)



Lupinus argenteus (Silvery lupine)
Cressler, Alan
The perennial silver-stem lupine bears from one to several, occasionally branched stems, each 1-2 ft. tall and covered with hairs. Stalked, palmately-compound, silvery-green leaves line the stems. Violet, pea-like flowers are arranged in a showy spike, up to 8 in. long, atop the stems. The flowers of silver-stem lupine are sometimes pink and rarely white. This species spreads quickly to form colonies.

Silvery Lupine is a member of the pea family (Fabaceae), which includes trees, shrubs, herbs, and vines with compound or occasionally simple leaves and flowers usually in clusters.

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9 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf: Gray-Green
Flower:
Fruit:
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Purple
Bloom Time: Jun , Jul

Distribution

USA: AZ , CA , CO , ID , KS , MT , NE , NV , NM , ND , OK , OR , SD , UT , WA , WY
Canada: AB
Native Distribution: E.c. OR & n.e. CA to AZ, e. to Alt., w. ND, n.w. NE & NM
Native Habitat: Stream valleys; dry roadsides; rocky prairies; open pine woods

Growing Conditions

Water Use: Low
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Dry
CaCO3 Tolerance: Medium
Soil Description: Rocky soils.

Benefit

Use Wildlife: Silvery lupine in an important food source for butterflies.
Warning: Plants in the genus Lupinus, especially the seeds, can be toxic to humans and animals if ingested. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.
Conspicuous Flowers: yes
Attracts: Birds , Hummingbirds

Last Update: 2014-08-20