Baccharis glutinosa
Baccharis dioica
Douglas' falsewillow, marsh baccharis, salt marsh baccharis
broombush false willow
erect to ascending, striate, glabrous, gland-dotted, resinous.
erect, green, striate-angled, glabrous or slightly scurfy.
present at flowering; short-petiolate;
blades (1- or 3-nerved, larger prominently 3-nerved) lanceolate, 50–130 × 8–30 mm, bases tapered to petioles, margins entire or finely dentate, apices acute to acuminate, faces glabrous, black gland-dotted.
present at flowering; short-petiolate;
blades (1-nerved, lateral veins obscure) obovate to spatulate, 10–30 × 7–18 mm (somewhat fleshy), margins entire or occasionally with 1–2 short, broad teeth per side, bases tapering, apices broadly obtuse, submucronate or slightly retuse, faces glabrous, gland-dotted, sometimes resinous.
hemispheric; staminate 3.5–5 mm, pistillate 3.8–4.8(–6) mm.
obconic; staminate 3–4 mm, pistillate 5–7 mm.
80–150;
corollas 1.7–3 mm.
20–30;
corollas 4–5 mm.
26–40;
corollas 3.5–4 mm.
20–30;
corollas 3–4 mm.
narrowly lanceolate, 2–4 mm, inner series ± equal, margins yellowish, medians green to purplish, apices acuminate, erose or ciliate, faces glabrous, gland-dotted, resinous.
ovate to lanceolate, 1–4 mm, margins scarious-erose, medians green, apices obtuse to acuminate.
in dense, terminal, flat-topped, corymbiform arrays.
(in terminal clusters) in (leafy) corymbiform or paniculiform arrays.
0.6–1.5 mm, 5-nerved, glandular, hispidulous distally;
pappi 2.6–4(–7) mm.
1–2 mm, 8–10-nerved, glabrous;
pappi 3–5 mm (scarcely elongating in fruit).
= 18.
Baccharis glutinosa
Baccharis dioica
Occurring along the coast and in interior valleys, Baccharis glutinosa is recognized by the erect, simple stems growing in patches from rhizomes, large lanceolate leaves with three veins and blackish glandular dots, heads in dense, compact, terminal, corymbiform arrays and more or less uniform inner phyllaries. G. L. Nesom (1990h) noted that it is similar to forms of the South American species Baccharis pingraea de Candolle, and that the two taxa may be conspecific.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Baccharis dioica is known from the southern tip of Florida. It is distinguished by its obovate, entire leaves with broadly obtuse apices, spreading phyllaries, and pappi that scarcely elongate in fruit.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
