Baccharis glutinosa
Baccharis plummerae
Douglas' falsewillow, marsh baccharis, salt marsh baccharis
Plummer's baccharis
erect to ascending, striate, glabrous, gland-dotted, resinous.
erect, simple, slender, wandlike, striate, villous or glabrate, glandular or eglandular.
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;
sessile;
blades linear to oblong or oblanceolate, 8–55 × 1–13 mm, bases cuneate, margins sharply serrate (teeth fine, sharp, bristly), apices obtuse, faces densely villous or adaxial sometimes glabrate or glabrous.
hemispheric;
staminate 3.5–5 mm, pistillate 3.8–4.8(–6) mm.
campanulate;
staminate 4–6 mm, pistillate 6–8.5 mm.
80–150;
corollas 1.7–3 mm.
20–30;
corollas 3.5–5 mm.
26–40;
corollas 3.5–4 mm.
19–26;
corollas 4–7 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.
lanceolate, 2–6 mm, margins scarious, medians green (villous), apices acute to acuminate, ciliate, sometimes glandular.
in dense, terminal, flat-topped, corymbiform arrays.
(50–100+) in compact paniculiform or corymbiform arrays.
0.6–1.5 mm, 5-nerved, glandular, hispidulous distally;
pappi 2.6–4(–7) mm.
2.5–3.6 mm, 5-nerved, villous, viscid;
pappi 7–8.5 mm.
= 18.
Baccharis glutinosa
Baccharis plummerae
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.)
Subspecies 2 (2 in the flora).
Baccharis plummerae is recognized by the bushy habit, wandlike, densely villous or glabrate stems, narrowly oblong leaves with sharply serrate margins, and densely villous or glabrate leaves, phyllaries, and cypselae. It is morphologically similar to B. malibuensis.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems villous, eglandular; leaves (3–)5–13 mm wide | subsp. plummerae |
1. Stems glabrate, glandular; leaves 1–2(–3) mm wide | subsp. glabrata |
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
