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Bransford, W.D. and Dolphia
Camissonia tanacetifolia (Torr. & A. Gray) P.H. Raven
Tansy-leaf Evening-primrose, Tansyleaf evening-primrose
Onagraceae (Evening-Primrose Family)
USDA Symbol: CATA2
USDA Native Status: L48 (N)
A dandelion-like rosette of jagged-edged leaves and bright yellow flowers with 4 broad petals.
This is representative of several low, yellow-flowered evening primroses without stems. The root of this plant branches beneath the ground, and the plants form patches on the surface. It was previously placed in the big genus Oenothera, but the knob at the end of the style indicates it belongs in Camissonia.
Bloom InformationBloom Time: Jun , Jul , Aug
, WA Native Distribution:
Eastern Washington south through Sierra Nevada and east to Idaho and Montana. Native Habitat:
Soil moist in spring but drying by summer, from sagebrush plains to pine forests.
Record Last Modified: 2007-01-01
Research By: TWC Staff