Baccharis glutinosa
Baccharis vanessae
Douglas' falsewillow, marsh baccharis, salt marsh baccharis
Encinitas baccharis, Encinitas false willow or baccharis, encinitis false willow
erect to ascending, striate, glabrous, gland-dotted, resinous.
erect, slender, rounded, smooth, glabrous or stipitate-glandular proximal to heads.
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.
often withering and sparse by flowering;
sessile;
blades (1-nerved) filiform to linear-oblanceolate, 10–30 × 1–3 mm (slightly fleshy), bases narrowed, margins entire (revolute), apices acute (mucronate), faces glabrous, gland-dotted.
hemispheric;
staminate 3.5–5 mm, pistillate 3.8–4.8(–6) mm.
funnelform;
staminate 3–5 mm, pistillate 3–5 mm.
80–150;
corollas 1.7–3 mm.
ca. 25;
corollas 2.5 mm.
26–40;
corollas 3.5–4 mm.
15–22;
corollas 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.
lanceolate (not keeled), 1–4 mm, margins ciliate, chartaceous, apices acute to acuminate (abaxial faces scurfy-glandular).
in dense, terminal, flat-topped, corymbiform arrays.
borne singly or in (pedunculate clusters) in loose paniculiform or racemiform arrays.
0.6–1.5 mm, 5-nerved, glandular, hispidulous distally;
pappi 2.6–4(–7) mm.
2–3 mm, 10-nerved, glabrous or ciliate along nerves;
pappi 7–10 mm.
= 18.
= 18.
Baccharis glutinosa
Baccharis vanessae
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.)
Of conservation concern.
Baccharis vanessae is highly localized in chaparral remnants in relictual Torrey Pine forests of coastal San Diego County. It is distinguished from other species of Baccharis by its filiform leaves and delicate, ciliate phyllaries that reflex at maturity.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
