Pluchea sagittalis

(Lamarck) Cabrera

Bol. Soc. Argent. Bot. 3: 36. 1949.

Common names: Wing-stem camphorweed
Introduced
Basionym: Conyza sagittalis Lamarck in J. Lamarck et al., Encycl. 2: 94. 1786
Synonyms: Pluchea quitoc de Candolle Pluchea suaveolens (Vellozo) Kuntze
Treatment appears in FNA Volume 19. Treatment on page 480. Mentioned on page 475, 478, 479.

Perennials, 50–200 cm; fibrous-rooted. Stems minutely hirtellous to strigillose and sessile-glandular (winged by decurrent leaf-bases). Leaves sessile; blades usually lanceolate to lance-elliptic (proximal sometimes spatulate or oblanceolate), mostly 5–15 × 1–3 (–4) cm, margins shallowly and closely toothed, faces minutely hirtellous to strigillose and sessile-glandular. Heads in corymbiform arrays. Involucres hemispheric to cupulate, 4–7 × 8–10 mm. Phyllaries greenish to cream, ± stipitate-glandular (outer oval-oblong to linear-attenuate). Corollas white or rose-purple. Pappi persistent, bristles distinct. 2n = 20.


Phenology: Flowering Jul–Aug.
Habitat: Moist or wet, open habitats, ballast deposit areas
Elevation: 0–10 m

Distribution

V19-805-distribution-map.gif

Introduced; Ala., Fla., West Indies, South America

Discussion

Pluchea sagittalis is adventive, probably a waif; it was collected as a ballast weed by C. Mohr near Mobile (1891, 1894, 1896) and by A. H. Curtiss near Pensacola (1886, 1901).

Selected References

None.

Lower Taxa

None.
... more about "Pluchea sagittalis"
sessile-glandular +  and stipitate +
villous +, strigose +, sericeous +, puberulent +  and arachnose +
glabrous +  and glabrate +
obtuse;rounded +
scarious +
ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Guy L. Nesom +
(Lamarck) Cabrera +
not +  and clasping +
decurrent +
Conyza sagittalis +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
usually lanceolate;lance-elliptic +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ribbed;smooth +
Wing-stem camphorweed +
rose-purple +  and white +
oblong-cylindric +
Ala. +, Fla. +, West Indies +  and South America +
0–10 m +
minutely hirtellous +  and strigillose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist or wet, open habitats, ballast deposit areas +
indeterminate +
heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
hemispheric;cupulate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
deltate +
dentate +  and entire +
2-carpellate +
persistent +
Flowering Jul–Aug. +
stipitate-glandular +
Bol. Soc. Argent. Bot. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
4 +  and 8 +
setiform +
exalbuminous +
Introduced +
stipitate +, winged +, branched +  and simple +
minutely hirtellous +  and strigillose +
appendaged +  and truncate +
papillate +
Pluchea quitoc +  and Pluchea suaveolens +
Pluchea sagittalis +
species +
200 cm2,000 mm <br />2 m <br /> (500 cm5,000 mm <br />5 m <br />) +
50 cm500 mm <br />0.5 m <br /> (200 cm2,000 mm <br />2 m <br />) +
fibrous-rooted +  and taprooted +
200 cm2,000 mm <br />2 m <br /> (500 cm5,000 mm <br />5 m <br />) +
tree +, shrub +  and subshrub +