Baccharis brachyphylla
Baccharis sergiloides
short leaf baccharis, shortleaf baccharis or false willow
desert baccharis, squaw false willow
erect, green, slender and wandlike, striate-angled, glabrate proximally, hispidulous distally (near heads).
erect, fastigiate, striate-angular, green, glabrous, resinous.
present at flowering (reduced, sparse);
sessile;
blades (1-nerved) linear to linear-lanceolate, 5–17 × 1–2 mm (reduced distally to subulate bracts), margins entire, apices acute, faces glabrous (sometimes minutely papillose).
cauline (proximal withering and sparse by flowering);
sessile;
blades (1-nerved) broadly oblanceolate to obovate or spatulate, 10–35 × 5–15 mm (thick, firm), bases attenuate, margins entire or irregularly serrate (teeth 1–4, distal leaves entire), apices obtuse to acute, faces glabrous, gland-dotted, resinous.
funnelform or campanulate;
staminate 3–5.2 mm, pistillate 4–6 mm.
funnelform to campanulate;
staminate 3–5 mm, pistillate 3–5 mm.
8–18;
corollas 2–2.8 mm.
15–30;
corollas 1.6–2.7 mm.
(8–)12–18(–29);
corollas 3.3–4.2 mm.
24–33;
corollas 2–3.5 mm.
lanceolate, 1–4 mm, margins scarious, medians green (hispid), apices acute to acuminate.
ovate to linear-lanceolate, 1–5 mm, margins scarious, erose, medians green, apices rounded to acute, glabrous, gland-dotted, resinous.
(on racemiform lateral branches) in paniculiform arrays.
(sessile or short-pedunculate on lateral branches) in crowded paniculiform arrays.
1.5–2.5 mm, 5-nerved, hispid;
pappi 4.5–7 mm.
1–2 mm, prominently 10-nerved, glabrous;
pappi 1.7–3.1 mm.
= 18.
= 18.
Baccharis brachyphylla
Baccharis sergiloides
Baccharis brachyphylla is characterized by the densely branching habit, narrow stems, and small, linear-lanceolate leaves, and hispidulous hairs on stems, leaves, phyllaries, and cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Baccharis sergiloides is recognized by its fastigiate, broomlike habit, and large obovate leaves that often wither before flowering. It differs from B. sarothroides in its larger leaves, more or less sessile and lateral heads, and smaller florets and fruits.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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