Baccharis glutinosa
Baccharis neglecta
Douglas' falsewillow, marsh baccharis, salt marsh baccharis
linear-leaf false willow, roosevelt or New Deal weed, rooseveltweed
erect to ascending, striate, glabrous, gland-dotted, resinous.
(sometimes in clumps) erect, striate-angled, glabrous, 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 (1-nerved, lateral veins obscure) narrowly elliptic to linear, 30–80 × 1–2(–5) mm (moderately thick), bases narrowly attenuate, margins entire or serrate with 2–3 small teeth, apices acute, faces glabrous, gland-dotted (distal reduced, entire).
hemispheric; staminate 3.5–5 mm, pistillate 3.8–4.8(–6) mm.
cylindro-campanulate; staminate 3.5–4 mm, pistillate 4–5 mm.
80–150;
corollas 1.7–3 mm.
15–30;
corollas 2.5–3.3 mm.
26–40;
corollas 3.5–4 mm.
10–15;
corollas 2.7–3.3 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, 1–3 mm, margins yellowish, often scarious, medians green or reddish, apices acute to acuminate (often purplish, sometimes erose).
in dense, terminal, flat-topped, corymbiform arrays.
(axillary and terminal on lateral branches) in pyramidal, paniculiform arrays.
0.6–1.5 mm, 5-nerved, glandular, hispidulous distally;
pappi 2.6–4(–7) mm.
1–1.5 mm, 10-nerved, glabrous;
pappi 7–12 mm.
= 18.
Baccharis glutinosa
Baccharis neglecta
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.)
As circumscribed here, Baccharis neglecta is known north of Mexico only from central Texas, mostly on the Edwards Plateau. It is recognized by its tall and erect habit, very narrow leaves with small shallow teeth, pyramidal arrays, and 10-ribbed cypselae. It is most similar to B. salicina and may represent a xeromorphic, narrow-leaf form or variety of that species. Baccharis neglecta invades rangelands and pastures, forming dense stands. It is an especially aggressive invader of land converted from crops to pasture and it is a prolific seed producer; it readily resprouts when burned or cut.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
