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Bransford, W.D. and Dolphia
Ageratina occidentalis (Hook.) King & H. Rob.
Western snakeroot, Western thoroughwort
Synonym(s): Eupatorium occidentale
USDA Symbol: AGOC2
USDA Native Status: L48 (N)
This low subshrub, which rarely grows taller than 2 ft., is covered with short, broad, pointed, bright green aromatic leaves topped by masses of red-purple flower heads.
Plant CharacteristicsDuration: Perennial Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: Red , Purple
Bloom Time: Jul , Aug , Sep
, WA Native Distribution:
to c. WA,
extreme w. MT
& UT Native Habitat:
Open, rocky places; 6500-11,000 ft.
Growing ConditionsLight Requirement: Sun
Soil Description: Granitic rocks.
Conditions Comments: Not Available
PropagationDescription: Propagate by division or seed.
Seed Collection: Not Available
Seed Treatment: Stratify.
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