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Pluchea baccharis

Pluchea baccharis (Mill.) Pruski  
Family: Asteraceae
Rosy Camphorweed
Pluchea baccharis image
Sue Carnahan
  • FNA
  • Resources
Guy L. Nesom in Flora of North America (vol. 19, 20 and 21)
Perennials, 40-60 cm; fibrous-rooted, sometimes rhizomatous. Stems puberulent to sparsely villous and stipitate- to sessile-glandular (sometimes viscid). Leaves sessile; blades ovate to ovate-oblong or elliptic-oblong, 2-7 × 0.5-3 cm (bases cuneate to truncate or subcordate, clasping to subclasping), margins shallowly apiculate-toothed, faces puberulent to sparsely villous and stipitate- to sessile-glandular (sometimes viscid). Heads in corymbiform arrays. Involucres campanulate to turbinate-campanulate or turbinate, 4-6 × 5-9 mm (bases obtuse to barely acute). Phyllaries rose-pink to purplish, moderately appressed-villous to puberulous or arachnose, usually viscid-hairy as well (outer phyllaries ovate-acuminate to ovate-lanceolate, lengths 0.5-1 times inner). Corollas rose-pink to purplish. Pappi persistent, bristles distinct. 2n = 20.

Flowering Jun-Jul. Wet savannas, flatwoods, pond edges, borrow pits, ditches; 0-20 m; Ala., Fla., Ga., La., Miss., N.C., S.C., Tex.; Mexico; West Indies (Bahamas); Central America (Belize, Honduras, Nicaragua).

Pluchea baccharis has been reported from Arkansas; I have not seen a specimen.

Pluchea rosea var. mexicana R. K. Godfrey, endemic to inland gypseous-saline habitats in east-central Mexico, has been treated at specific rank (G. L. Nesom 1989).

The geographic ranges of Pluchea baccharis and P. foetida are nearly congruent and the taxa intergrade in morphology. The distinction between them is based primarily on corolla and phyllary color. Features of involucral vestiture also appear to be relatively constant. Head size and shape are not reliable diagnostic features.

Pluchea baccharis
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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