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Wasowski, Sally and Andy
Lupinus argenteus Pursh
Silvery lupine, Silver-stem lupine
USDA Symbol: luar3
USDA Native Status: L48 (N), CAN (N)
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.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf:
Fruit: Size Class:
Bloom InformationBloom Color: Purple
Bloom Time: Jun , Jul
, WY Canada: AB Native Distribution:
& n.e. CA
e. to Alt., w. ND,
& NM Native Habitat:
Stream valleys; dry roadsides; rocky prairies; open pine woods
Growing ConditionsWater Use: Low
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Dry
CaCO3 Tolerance: Medium
Soil Description: Rocky soils.
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:
Birds , Hummingbirds
PropagationDescription: Propagate by seed sown in fall.
Seed Collection: Seeds are produced in a hairy pod.
Seed Treatment: Scarify seed coats of stored seed.
Commercially Avail: yes
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
Record Last Modified: 2009-02-20
Research By: TWC Staff