Heterotheca oregona var. oregona

Treatment appears in FNA Volume 20. Treatment on page 236. Mentioned on page 237.

Stems openly branched distally, sparsely to moderately hispid, moderately to densely, finely stipitate-glandular. Leaves green, mid cauline averaging 32.8 × 8.8 mm (15–58 × 3.4–14.8 mm), faces glabrate to sparsely hispid (fewer than 5 hairs/mm²), sparsely to moderately stipitate-glandular. Outer phyllaries lanceolate. 2n = 18.

Phenology: Flowering Jul–Oct.
Habitat: Sand and gravel deposits, stream margins, in oak and conifer woods
Elevation: 0–500 m


Variety oregona ranges from the Olympic Peninsula in Washington southward through the Cascades and the Coastal ranges to San Luis Obispo County, California.

Selected References


Lower Taxa