Wyethia angustifolia (DC.) Nutt.
California Compassplant, California-compassplant, Narrowleaf Mule Ears
Asteraceae (Aster Family)
Synonym(s): Wyethia angustifolia var. foliosa
USDA Symbol: WYAN
Basal clumps of bright-green, narrow, tongue-shaped leaves, 1-2 ft. long subtend the 1 ft. flower stalks of this showy perennial. Large, showy, sunflower-like heads occur on the stalk. Thick, creeping, aromatic rhizomes increase the size of the colony each year.
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Bloom InformationBloom Color: Yellow
Bloom Time: Apr , May , Jun , Jul
DistributionUSA: CA , OR , WA
Native Distribution: Cismontane CA from Tulare & San Luis Obispo Cos., n. to WA
Native Habitat: Open, grassy slopes; moist, open hillsides
Growing ConditionsLight Requirement: Sun
Soil Description: Variable with occasional summer moisture.
Conditions Comments: Mule ears is fall dormant. Old dead flower heads can be cut off unless the edible seed is desired.
PropagationDescription: Use treated seed.
Seed Collection: Not Available
Seed Treatment: Soak or stratify seed. Seeds should receive cool-moist stratification 90-120 days for proper germination.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
View propagation protocol from Native Plants Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
Additional resourcesUSDA: Find Wyethia angustifolia in USDA Plants
FNA: Find Wyethia angustifolia in the Flora of North America (if available)
Google: Search Google for Wyethia angustifolia
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff