Heterotheca oregona var. compacta
Brittonia 39: 382. 1987.
Stems usually branched proximally, moderately to densely hispid, sparsely stipitate-glandular. Leaves gray-green, mid cauline averaging 19.2 × 4.2 mm (9–29 × 2.6–4.1 mm), faces long-villous, moderately to densely hispid (more than 5 hairs/mm²), not obviously stipitate-glandular. Outer phyllaries lanceolate. 2n = 18.
Phenology: Flowering Jul–Oct.
Habitat: Sandy and rocky soils, dry areas away from streams, openings in oak and conifer woodlands, disturbed roadbanks
Elevation: 200–1000+ m
Discussion
Variety compacta has leaf hairs sufficiently dense to give the plants a gray-green to even whitish appearance; the plants are therefore similar to individuals of Heterotheca echioides, which is radiate. It occurs scattered in the Klamath, Cascade, and Coastal Range mountains of northern California.
Selected References
None.
Lower Taxa
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