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Vick, Albert F. W.
Penstemon davidsonii Greene
Alpine penstemon, Blue color mat, Davidson's penstemon, Timberline beardtongue
USDA Symbol: PEDA2
USDA Native Status: L48 (N), CAN (N)
A flat, mat-forming perennial with flowering branches less than 4 in. high. The thick, round leaves are dark green, sometimes red-tinged. A matted plant with a woody base and stems, opposite, crowded leaves, and blue-lavender, bilaterally symmetrical flowers clustered on short erect stems. The short flowering branches usually bear 2-4 blue-purple to rose-purple flowers that seem unusually large for such a matted plant.
When in full flower, this species forms spectacular lavender mats. Plants in the southern part of the range have toothless leaves; to the north, toothed leaves are common.
Plant CharacteristicsDuration: Perennial Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: Purple
Bloom Time: Jul , Aug
, WA Canada: BC Native Distribution:
S. B.C. to Tulare Co., CA
& NV Native Habitat:
Rocky, alpine & sub-alpine woods & fields
Growing ConditionsLight Requirement: Sun
Soil Description: Well-drained soil with some summer water.
Conditions Comments: Must have winter snowcover.
BenefitUse Wildlife: Hummingbirds
PropagationDescription: Propagate using half-woody cuttings or seed.
Seed Collection: Not Available
Seed Treatment: 1-2 months stratification is necessary.
Commercially Avail: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Oregon Native Plant Nursery
- Woodburn, OR
Record Last Modified: 2007-01-01
Research By: TWC Staff