Flora of North America species comparison

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Baccharis vanessae

Encinitas baccharis, Encinitas false willow or baccharis, encinitis false willow
Habit Shrubs, 50–200 cm (sprawling, densely stemmed from crowns, broomlike).
Stems

erect, slender, rounded, smooth, glabrous or stipitate-glandular proximal to heads.
Leaves

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.
Involucres

funnelform;

staminate 3–5 mm, pistillate 3–5 mm.
Pistillate florets

ca. 25;

corollas 2.5 mm.
Staminate florets

15–22;

corollas 4 mm.
Phyllaries

lanceolate (not keeled), 1–4 mm, margins ciliate, chartaceous, apices acute to acuminate (abaxial faces scurfy-glandular).
Heads

borne singly or in (pedunculate clusters) in loose paniculiform or racemiform arrays.
Cypselae

2–3 mm, 10-nerved, glabrous or ciliate along nerves;

pappi 7–10 mm.
2n

= 18.

Baccharis vanessae
Phenology Flowering Oct.
Habitat Chaparral, Torrey-pine forests
Elevation 60–300 m (200–1000 ft)
Distribution
from FNA
CA
[BONAP county map]
Discussion

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.)
Source FNA vol. 20, p. 34.
Parent taxa Asteraceae > tribe Astereae > Baccharis
Sibling taxa
B. angustifolia, B. bigelovii, B. brachyphylla, 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. wrightii
Name authority R. M. Beauchamp: Phytologia 46: 216, figs. 2, 3. (1980)
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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