(Western Valerian)

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Valeriana occidentalis, FR 612, Lone Cone Area, San Miguel Co. 3356

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Valeriana occidentalis, FR 612, Lone Cone Area, San Miguel Co. 3357

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Valeriana occidentalis, FR 612, Lone Cone Area, San Miguel Co. 3357

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Upper stem leaves, Valeriana occidentalis, FR 612, Lone Cone Area, San Miguel Co. 3362

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Lower stem leaves, Valeriana occidentalis, Lower Cataract Lake 5372

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Valeriana occidentalis, Lower Cataract Lake, Summit Co. 5373

Scientific Name Valeriana occidentalis USDA PLANTS Symbol VAOC2
Common Name Western Valerian ITIS Taxonomic Serial No. 35362
Family Valerianaceae (Valerian) SEINet
Reference
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Description Life zones and habitat: Montane to subalpine (6400 to 11000 ft.); moist areas in meadows and hillsides.
Plant: Erect perennial up to 30 inches tall; curving, grooved stem.
Leaves: Numerous, large basal, spatulate leaves on short petioles; smaller opposite pairs of pinnately-compound stem leaves, each with lanceolate to ovate leaflets, and upper stems divided into linear-lanceolate lobes or leaflets.
Inflorence: Very small white flowers less than 1/4-inch across in a compact panicle with opposite branching; flowers are dioecious (separate male and female flowers) or bisexual; 5 pointed lobes/petals; male blossoms with 3 protruding stamens.
Bloom Period: July to September.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel, "A Guide to Rocky Mountain Plants" by Nelson and Williams.
BONAP Distribution Map
Colorado Status:
Native

© Tom Lebsack 2022

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