Lupinus argenteus

(Silvery Lupine)

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Lupinus argenteus, Along FR109, Grand Mesa NF, Delta Co. 0860

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Lupinus argenteus, Breckenridge, Summit Co. 6387

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Lupinus argenteus, Breckenridge, Summit Co. 1179

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Lupinus argenteus, Breckenridge, Summit Co. 1188

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Lupinus argenteus, Searle Pass Trail, Summit Co. 0802

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Lupinus argenteus, Along FR109, Grand Mesa NF, Delta Co. 0868

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Lupinus argenteus, Along FR109, Grand Mesa NF, Delta Co. 0921

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Lupinus argenteus, Shrine Ridge, Eagle Co. 6558

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Lupinus argenteus, Blue Lakes Trail, Gilpin Peak, Ouray Co. 5449

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Lupinus argenteus, Blue Lakes Trail, Gilpin Peak, Ouray Co. 5450

Scientific Name Lupinus argenteus USDA PLANTS Symbol LUAR3
Common Name Silvery Lupine, Silver-stem Lupine TIS Taxonomic Serial No. 503575
Family Fabaceae (Pea) SEINet
Reference
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Description Life zones and habitat: Foothills to subalpine (4800 to 10500 ft); meadows and open areas, dry or moist, sandy, well-drained soils. Widespread.
Plant: Erect perennial to 2 feet tall, sometimes taller, single to several stems often with very small hairs. Spreads to form colonies.
Leaves: Palmately-divided leaves on long petioles with 5 to 9 leaflets, each narrowly linear to oblanceolate, up to 2 inches long.
Inflorescence: Many pea-like light to dark blue, purple or white blossoms arranged in a raceme 4 to 8 inches long atop each stem, may be hairy. Raceme stem may be reddish.
Bloom Period: May to September.
References: Various.
Notes: Highly variable species in terms of height, leaf shape, hairiness, etc.
BONAP Distribution Map
Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County