Pluchea camphorata

(Linnaeus) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 452. 1836.

Common names: Plowman’s-wort
Endemic
Basionym: Erigeron camphoratus Linnaeus Sp. Pl. 2: 864. 1753
Treatment appears in FNA Volume 19. Treatment on page 481. Mentioned on page 479.

Annuals or perennials, 50–200+ cm; fibrous-rooted. Stems minutely puberulent and sessile-glandular, usually also closely arachnose (hairs appressed). Leaves petiolate (petioles 10–20 mm); blades elliptic to oblongelliptic, 6–15 × 3–7 cm, margins dentate-serrate or entire, faces glandular-puberulent or puberulent and sessile-glandular. Heads in paniculiform arrays (of rounded-convex, corymbiform clusters terminating branches from distal nodes, arrays usually resulting from axillary, strongly ascending, bracteate branches, the central axis longest and first to flower and, rarely, the only component of an array). Involucres campanulate, 4–6 × 3–4 mm. Phyllaries usually cream, sometimes purplish, minutely sessile-glandular (the outer also sparsely puberulent), sometimes glabrate. Corollas rose purplish. Pappi persistent, bristles distinct.


Phenology: Flowering Aug–Oct (year-round in south).
Habitat: Flatwoods, bottomland channels, other wet or moist freshwater habitats
Elevation: 0–30 m

Distribution

V19-807-distribution-map.gif

Ala., Ark., Del., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Miss., Mo., N.J., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va.

Discussion

Pluchea camphorata is similar to P. odorata and rarely may hybridize with it. In P. camphorata, the phyllaries of the inner 2–3 series are thin and nearly translucent, lanceolate, and more than twice as long as deltate-ovate phyllaries of the outer series. The inner may be glandular but they are otherwise glabrous, prominently different in vestiture from the outer. The phyllaries of P. odorata are more strongly graduated and the inner are glandular and also clearly puberulent as well.

Selected References

None.

Lower Taxa

None.
... more about "Pluchea camphorata"
sessile-glandular +  and stipitate +
villous +, strigose +, sericeous +, puberulent +  and arachnose +
glabrous +  and glabrate +
obtuse;rounded +
scarious +
ovate +  and lanceovate or linear +
paniculiform +
indeterminate +  and determinate +
Guy L. Nesom +
(Linnaeus) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
not +  and clasping +
decurrent +
Erigeron camphoratus +
compound +  and simple +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
elliptic;oblongelliptic +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
ribbed;smooth +
Plowman’s-wort +
rose purplish +
oblong-cylindric +
Ala. +, Ark. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +  and W.Va. +
0–30 m +
puberulent +  and glandular-puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Flatwoods, bottomland channels, other wet or moist freshwater habitats +
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 /> (0.6 cm6 mm <br />0.006 m <br />) +
campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
deltate +
entire +  and dentate-serrate +
denticulate +  and entire +
2-carpellate +
persistent +
Flowering Aug–Oct (year-round in south). +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
4 +  and 8 +
setiform +
exalbuminous +
stipitate +, winged +, branched +  and simple +
arachnose +  and puberulent +
appendaged +  and truncate +
papillate +
Compositae +
Pluchea camphorata +
species +
200 cm2,000 mm <br />2 m <br /> (500 cm5,000 mm <br />5 m <br />) +
perennial +  and annual +
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 +