Wyethia amplexicaulis (Nutt.) Nutt.
Asteraceae (Aster Family)
Synonym(s): Espeletia amplexicaulis
USDA Symbol: WYAM
Large, round, shiny leaves subtend a stout but lax stem, 1-3 ft. tall. Stem leaves are more lance-shaped, resembling the ears of mule. A large, yellow, sunflower-like flower head is often surrounded by smaller yellow flowers. Plant seems varnished with resin, the stout leafy stems growing from clumps of lanceolate leaves, ending in several large deep yellow flower heads on long stalks, the central head largest.
All species have leaves on the stem, distinguishing them from Balsamorhiza, which has all leaves at the base.
From the Image Gallery
Bloom InformationBloom Color: Yellow
Bloom Time: May , Jun
DistributionUSA: CO , ID , MT , NV , OR , UT , WA , WY
Native Distribution: C. WA to w. MT, s. to NV & n.w. CO
Native Habitat: Dry meadows; open hillsides; foothills; canyons
Growing ConditionsWater Use: Medium
Light Requirement: Sun
Soil Moisture: Wet
Soil pH: Circumneutral (pH 6.8-7.2)
CaCO3 Tolerance: Medium
Soil Description: Moist to mesic, well-drained clayey loams.
BenefitConspicuous Flowers: 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 amplexicaulis in USDA Plants
FNA: Find Wyethia amplexicaulis in the Flora of North America (if available)
Google: Search Google for Wyethia amplexicaulis
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff