Baccharis angustifolia

Michaux

Fl. Bor.-Amer. 2: 125. 1803.

Common names: Saltwater false willow narrowleaf baccharis
Endemic
Treatment appears in FNA Volume 20. Treatment on page 26. Mentioned on page 24, 25, 28, 33.

Shrubs, 100–200 (–400) cm (leafy, much branched, not broomlike). Stems erect to ascending, slender, striate, glabrous, resinous. Leaves present at flowering; sessile; blades (1-nerved) 20–60 × 1–2 (–5) mm, ± succulent, bases narrowly attenuate, margins mostly entire, apices acute, faces glabrous, not gland-dotted. Heads (in groups of 3–5 near branch tips) in broad paniculiform arrays (of 100+). Involucres campanulate; staminate 3–4 mm, pistillate 3.5–5 mm. Phyllaries ovate to lanceolate, 1–4 mm, margins scarious, medians green, sometimes purplish, apices green to purplish, obtuse to acute. Staminate florets 15–20; corollas 2.5 mm. Pistillate florets 15–20; corollas ca. 3 mm. Cypselae 1–2 mm, 10-nerved, glabrous; pappi 6–8 mm.


Phenology: Flowering Sep–Nov.
Habitat: Coastal salt marshes, hammocks, dune hollows, stream banks
Elevation: 0–20 m

Distribution

V20-9-distribution-map.gif

Ala., Fla., Ga., La., Miss., N.C., S.C.

Discussion

Baccharis angustifolia is most commonly found in brackish, marshy areas near the coast of Atlantic and Gulf coastal plains. It is easily recognized by its 1-nerved, relatively narrow and fleshy, entire leaves, and the more or less pyramidal arrays of relatively small heads. Rarely, some specimens have slightly broader leaves with an occasional tooth, perhaps due to introgression with B. halimifolia.

Selected References

None.

Lower Taxa

None.
... more about "Baccharis angustifolia"
not tailed +, rounded +  and obtuse +
green;purplish +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Scott D. Sundberg† +  and David J. Bogler +
Michaux +
attenuate +
3-nerved +  and 1-nerved +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
rhombic;obovate;rhombic;obovate;oblong;ovate;lanceolate;linear +
1mm;2mm +
rugulose +  and muricate +
barbellulate +  and barbellate +
Saltwater false willow +  and narrowleaf baccharis +
not 2-lipped +  and actinomorphic +
whitish +, white +  and pale-yellow +
3 cm30 mm <br />0.03 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, obovoid +  and cylindric +
fertile +  and bisexual +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +  and S.C. +
0–20 m +
resinous +
not gland-dotted +
pistillate +  and staminate +
winged +  and beaked +
dispersed +
Coastal salt marshes, hammocks, dune hollows, stream banks +
racemiform +, corymbiform +  and paniculiform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
pistillate +  and staminate +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
campanulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spreading-reflexed;spreading-reflexed +
less deltate +  and lanceovate +
hispid +  and glabrous +
purplish +  and green +
2-carpellate +
brownish +, whitish +  and tawny +
persistent +
25 +  and 50 +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering Sep–Nov. +
ovate +  and lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Fl. Bor.-Amer. +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
conic;tholiform;conic;tholiform;flat +
exalbuminous +
1 (?) +  and 20 (?) +
resinous +
erect +  and ascending +
slender +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Baccharis angustifolia +
Baccharis +
species +