Baccharis malibuensis
Baccharis texana
Malibu baccharis, Malibu baccharis or coyote brush
prairie baccharis or false willow, prairie false willow
erect to arching, striate-angled, glabrous or sparsely villous distally (hairs short, spreading).
simple, erect or procumbent, rigid (woody proximally), herbaceous and leafy distally (dying back annually), striate-angled, glabrous, non-resinous.
present at flowering (sparse); short-petiolate;
blades (1- or 3-nerved) linear to linear-oblanceolate, (15–)20–45(–65) × 1–4(–5) mm, bases narrowly attenuate, margins entire or weakly serrate, apices acute or acuminate (crustose);
faces glabrous or sometimes sparsely pilose (hairs 2-seriate), adaxial gland-dotted (in pits; distal leaves reduced, crowded).
present at flowering;
sessile;
blades (1-nerved) linear to narrowly lanceolate, 10–40 × 1–4 mm, bases narrowed, margins minutely undulate, apices acute, faces glabrous, gland-dotted (distal leaves reduced, scalelike).
turbinate;
staminate ca. 5 mm, pistillate ca. 5 mm.
campanulate;
staminate 4–7 mm, pistillate 7–9 mm.
35–38;
corollas 2.2–4.2 mm.
20–30;
corollas 3.5–4 mm.
23–36;
corollas 3.7–4.5 mm.
15–20;
corollas 4–5 mm.
linear-lanceolate, 2–5 mm, margins yellowish white, scarious, medians green, apices becoming brown with age, ciliate distally.
lanceolate, 1–7 mm, margins scarious, erose-ciliate, medians green (midribs dark, keeled, dilated), apices acute to acuminate (erose-ciliate, abaxial faces glabrous, minutely papillose-gland-dotted).
in cylindric paniculiform arrays.
(on short peduncles) in loose corymbiform arrays.
2.4–3 mm, 5-nerved, faces with thick, irregular, glandlike hairs;
pappi 6.5–7.5 mm.
3–5 mm, prominently 6–8-nerved, glabrous;
pappi 11–14 mm.
Baccharis malibuensis
Baccharis texana
Of conservation concern.
Baccharis malibuensis is known only from the Malibu Creek drainage area in the Santa Monica Mountains (Los Angeles County). It is distinguished by its narrow, often conduplicate and glabrate leaves, cylindric arrays, and summer flowering. According to Beauchamp and Henrickson, it appears to be closely related to and possibly derived from B. plummerae, from which it differs primarily in leaf size, teeth, and indument.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Baccharis texana is recognized by its low, subshrub habit, simple, more or less herbaceous and leafy stems arising from woody bases, narrow leaves with minutely undulate margins, large pedunculate heads, and erose-ciliate phyllaries with dilated midribs.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
