Flora of North America species comparison

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Baccharis brachyphylla

short leaf baccharis, shortleaf baccharis or false willow
Habit Shrubs or subshrubs, 20–100 cm (finely and densely branched from bases).
Stems

erect, green, slender and wandlike, striate-angled, glabrate proximally, hispidulous distally (near heads).
Leaves

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).
Involucres

funnelform or campanulate;

staminate 3–5.2 mm, pistillate 4–6 mm.
Pistillate florets

8–18;

corollas 2–2.8 mm.
Staminate florets

(8–)12–18(–29);

corollas 3.3–4.2 mm.
Phyllaries

lanceolate, 1–4 mm, margins scarious, medians green (hispid), apices acute to acuminate.
Heads

(on racemiform lateral branches) in paniculiform arrays.
Cypselae

1.5–2.5 mm, 5-nerved, hispid;

pappi 4.5–7 mm.
2n

= 18.

Baccharis brachyphylla
Phenology Flowering Jul–Aug.
Habitat Canyons, dry washes, sandy deserts, mesas
Elevation 300–1200 m (1000–3900 ft)
Distribution
from FNA
AZ; CA; NM; NV; TX; Mexico (Baja California, Chihuahua, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

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.)
Source FNA vol. 20, p. 27.
Parent taxa Asteraceae > tribe Astereae > Baccharis
Sibling taxa
B. angustifolia, B. bigelovii, B. dioica, B. glomeruliflora, B. glutinosa, B. halimifolia, B. havardii, B. malibuensis, B. neglecta, B. pilularis, B. plummerae, B. pteronioides, B. salicifolia, B. salicina, B. sarothroides, B. sergiloides, B. texana, B. thesioides, B. vanessae, B. wrightii
Name authority A. Gray: Smithsonian Contr. Knowl. 5(6): 83. (1853)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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