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FNA | Family List | FNA Vol. 21 | Asteraceae | Acmella

1. Acmella repens (Walter) Richard in C. H. Persoon, Syn. Pl. 2: 473. 1807.

Anthemis repens Walter, Fl. Carol., 211. 1788; Acmella oppositifolia (Lamarck) R. K. Jansen var. repens (Walter) R. K. Jansen; Spilanthes americana (Mutis) Hieronymus var. repens (Walter) A. H. Moore

Leaves: petioles 3–40+ mm; blades ovate to lance-ovate, mostly 20–40(–100) × 10–35 mm, margins dentate to denticulate or entire. Cypselae 1–2.5 mm, ciliate or not, tips of cilia straight; pappi 0 or of 1–2(–3) bristles. 2n = 52.

Flowering Jan–Dec. Disturbed, wet or drying sites; 0–200 m; Ala., Ark., Fla., Ga., La., Miss., Mo., N.C., S.C., Tenn., Tex.; Mexico (Coahuila).


 

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