Baccharis pilularis
chaparral broom, coyote brush
Specimens
Photos

Distribution: Occurring west of the Cascades crest in southern Washington; Washington to California, also in New Mexico.

Habitat: Coastal dunes, bluffs, and thickets.

Flowers: August-September

Origin: Native

Conservation Status: Threatened in Washington (WANHP)

Description:
General:

Perennials, subshrubs, or shrubs, 15–450 cm tall, prostrate and mat-forming to erect and rounded, branches numerous; stems spreading to ascending, dark brown, shiny, striate-angular, glabrous, often somewhat scurfy, usually resinous and sticky.

Leaves:

Leaves present at flowering; sessile or short-petiolate; blades often 1-nerved, sometimes 3-nerved, oblanceolate to obovate, 5–40 × 2–15 mm thick, bases cuneate, margins entire or coarsely dentate, teeth grouped from 3 to 9, faces glabrous, gland-dotted, resinous.

Flowers:

Heads number 100 to 200+, in paniculiform arrays; involucres hemispheric to campanulate; 3.2–5 mm long in staminate, 3–6 mm in pistillate; phyllaries ovate to lanceolate, 1–3 mm, margins yellowish, scarious, medians yellow proximally, green distally, apices obtuse to acute or acuminate, erose, abaxial faces papillose-scurfy; corollas 2.5–3.5 mm long; staminate florets number 20–34, 3–4 mm long; pistillate florets number 19–43.

Fruit:

Cypselae ellipsoid, 1–2 mm, 8–10-nerved, glabrous; pappi 6–9 mm.

Accepted Name:
Baccharis pilularis DC.
Publication: Prodr. 5: 407. 1836.

Synonyms & Misapplications:
(none provided)
Infraspecies:
ssp. consanguinea – chaparral broom    Occurring west of the Cascades crest in southern Washington; southwestern Washington to California, also in New Mexico.
Additional Resources:

PNW Herbaria: Specimen records of Baccharis pilularis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Baccharis pilularis checklist entry.

E-Flora BC: Baccharis pilularis atlas page.

CalPhotos: Baccharis pilularis photos.

USDA Plants: Baccharis pilularis information.

17 photographs:
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