Flora of North America species comparison

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Pluchea sagittalis

Pluchea yucatanensis

wing-stem camphorweed

Yucatan camphorweed
Habit Perennials, 50–200 cm; fibrous-rooted. Perennials, 20–60 cm; probably fibrous-rooted.
Stems

minutely hirtellous to strigillose and sessile-glandular (winged by decurrent leaf bases).

± stipitate- or sessile-glandular, otherwise glabrous.
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.

sessile;

blades (leathery, slightly succulent, shiny) oblong-obovate to oblong-oblanceolate or broadly lanceolate, 3–5 × (0.6–)1.5–2 cm (bases subclasping and sub-auriculate), margins serrulate, faces ± stipitate- or sessile-glandular, otherwise glabrous or distalmost minutely puberulent.
Involucres

hemispheric to cupulate, 4–7 × 8–10 mm.

turbinate to campanulate, 5–6 × 4–5 mm.
Corollas

white or rose-purple.

pink to lavender or cream or pinkish to rosy.
Phyllaries

greenish to cream, ± stipitate-glandular (outer oval-oblong to linear-attenuate).

pink to lavender or cream, proximally stipitate- or sessile-glandular, distally densely stipitate-glandular (outermost ovate-lanceolate, lengths usually 1 times inner, rarely only 0.5 times inner).
Heads

in corymbiform arrays.

in corymbiform arrays.
Pappi

persistent, bristles distinct.

persistent, bristles distinct.
2n

= 20.

Pluchea sagittalis

Pluchea yucatanensis
Phenology Flowering Jul–Aug. Flowering late May–Aug.
Habitat Moist or wet, open habitats, ballast deposit areas Low woods
Elevation 0–10 m (0–0 ft) 0–10 m (0–0 ft)
Distribution
from FNA
AL; FL; South America; West Indies [Introduced in North America]
[BONAP county map]
from FNA
AL; MS; Mexico; Central America (Belize) [Introduced in North America]
[BONAP county map]
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).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Pluchea yucatanensis apparently is native along the Gulf and Caribbean coasts of Mexico and Central America, most commonly on the Yucatan Peninsula and in Belize. In the United States, it is known from collections made from 1896 to 1969 in coastal Alabama and Mississippi; it appears to be naturalized in the flora.

Pluchea yucatanensis is similar in habit and general appearance to P. foetida and P. baccharis and has been identified as both; the rosy tinted phyllaries and florets are more similar to those of P. baccharis. The glabrous, slightly thickened, shiny leaves and glabrous phyllaries are recognition traits for the species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 480. FNA vol. 19, p. 483.
Parent taxa Asteraceae > tribe Plucheeae > Pluchea Asteraceae > tribe Plucheeae > Pluchea
Sibling taxa
P. baccharis, P. camphorata, P. carolinensis, P. foetida, P. longifolia, P. odorata, P. sericea, P. yucatanensis
P. baccharis, P. camphorata, P. carolinensis, P. foetida, P. longifolia, P. odorata, P. sagittalis, P. sericea
Synonyms Conyza sagittalis, P. quitoc, P. suaveolens
Name authority (Lamarck) Cabrera: Bol. Soc. Argent. Bot. 3: 36. (1949) G. L. Nesom: Phytologia 67: 160. (1989)
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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