Baccharis salicifolia (Ruíz & Pavón) Pers.

Family: Asteraceae, Tribe: Astereae

Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms)

Baccharis glutinosa Persoon, B. viminea de Candolle

Pertinent Common Names (particularly those used in California; go to GRIN for other common names)

seepwillow, mule fat

Primary Disseminule Type


Description (diagnostics are in brown)

Fruit a cypsela, narrowly oblong, often slightly curved, cross-section terete to star-shaped, 0.8–1.5 mm long x 0.2–0.4 mm diameter. Surface glabrous, finely striate, tan to light brown, often with a waxy look, with 5 lighter-colored, low longitudinal ribs. Pappus a whorl of white bristles 3–6 mm long, easily broken off at their bases.

Style base cylindrical, whitish, flanged with a whitish collar ca. 0.3–0.4 mm across.

Fruit attachment scar basal, whitish, cup-like with single inner protrusion, round or sometimes star-shaped due to the fruit ribs.

Similar Species

Similar Species Comparison Chart

Risk Assessment (codes in yellow or red indicate cause for concern; assessments are current as of mid-2011; click AUQP, NZBORIC, or NZBPI for access to the most recent versions of these databases and possible assessment changes)