Baccharis sarothroides
Baccharis wrightii
broom baccharis, desert broom, greasewood, groundsel, rosin-brush
Wright's baccharis, Wright's baccharis or false willow
erect, striate, sharply angled, green distally, glabrous, resinous.
erect and slender or short and branched, prominently striate-angled, glabrous, eglandular.
cauline (proximal withered and/or sparse at flowering);
sessile;
blades (1-nerved) linear-lanceolate, 5–15 × 1–2 mm, reduced to scales distally, thick, bases narrowed, margins entire (often revolute), apices acute, faces glabrous, minutely gland-dotted, resinous.
(reduced) proximal often withered and absent at flowering;
sessile;
blades oblanceolate to narrowly oblong, 5–10(–25) × 1–3(–7) mm (thin), bases narrowed, margins entire or finely serrate (teeth aristate), faces eglandular, not resinous (distal reduced to linear or oblong scales).
cylindric to hemispheric;
staminate 4–5.2 mm, pistillate 3–8 mm.
broadly campanulate to hemispheric;
staminate 5–9 mm, pistillate 9–14 mm.
19–31;
corollas 2.5–3.5 mm.
20–30;
corollas 3–5 mm.
18–35;
corollas 4.2–5 mm.
20–30;
corollas 4.5–6 mm.
ovate to lanceolate, 1–5 mm, margins yellowish, slightly scarious, medians green to yellow, apices rounded to acute (greenish, abaxial faces glabrous, resinous).
narrowly lanceolate, 2–6 mm (not keeled), medians green or brown, margins scarious, apices acute or acuminate (erose, abaxial faces glabrous, eglandular).
borne singly (on nearly leafless branches) or (laterally on branchlets) in dense paniculiform arrays.
usually borne singly (terminal on slender branches).
2–2.6 mm, finely 8–10-nerved, glabrous;
pappi 7–12 mm.
3–5 mm, strongly 5–10-nerved, papillose-roughened, glandular;
pappi 15–20 mm (often brownish).
= 18.
= 18.
Baccharis sarothroides
Baccharis wrightii
Baccharis sarothroides is recognized by its broomlike habit, narrow, sharply angular, nearly leafless, green stems, soon-withering proximal leaves, scalelike distal leaves, and heads often terminal on long branches. Specimens from California have smaller heads that sometimes are arranged laterally along the stems.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Baccharis wrightii is recognized by its bushy, broomlike habit, stems woody only at bases, relatively small, non gland-dotted leaves, early flowering period, heads borne singly, conspicuous, brownish pistillate pappi, and relatively large, strongly nerved cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
KS Wildflowers
