Flora of North America species comparison

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Acalypha chamaedrifolia

Acalypha alopecuroidea

bastard copperleaf, Everglades copperleaf

foxtail copperleaf
Habit Herbs, perennial, 1–2.5 dm, monoecious. Herbs, annual, 2–6 dm, monoecious.
Stems

prostrate to ascending, pubescent.

erect, short-pubescent and stipitate-glandular.
Leaves

petiole 0.1–0.5 cm;

blade ovate to orbiculate, 0.3–2.1 × 0.3–1.2 cm, base cordate or rounded, margins serrate-crenate, apex obtuse or acute.

petiole 0.5–7 cm, stipitate-glandular;

blade ovate to broadly ovate, 2–8 × 1.5–5 cm, base rounded or subcordate, margins serrate, apex acuminate.
Inflorescences

bisexual, terminal;

peduncle 0.2–1 cm, pistillate portion 1.5–3 × 1–1.5 cm, staminate portion 0.8–2.5 cm;

allomorphic pistillate flowers absent.

unisexual, axillary (staminate) and terminal (pistillate);

staminate peduncle 0.1–0.6 cm, stipitate-glandular, fertile portion 0.2–0.8 cm;

pistillate peduncle 0.2–1 cm, stipitate-glandular, fertile portion 2–6 × 0.8–1.5 cm;

allomorphic pistillate flowers common, terminal on pistillate or, rarely, staminate inflorescences.
Pedicels

of allomorphic flowers 5–15 mm.
Pistillate flowers

pistil 3-carpellate;

styles multifid or laciniate.

pistil 3-carpellate (normal flowers), 1(–2)-carpellate (allomorphic flowers);

styles unbranched or rarely 2-fid.
Capsules

smooth, pubescent.

smooth, pubescent and stipitate-glandular or glabrate;

allomorphic fruits obovoid, 1–1.5 × 0.9–1.2 mm, muricate, hirsute.
Seeds

1.2–1.4 mm, minutely pitted.

1–1.1 mm, minutely pitted.
Pistillate

bracts crowded (inflorescence axis not or sparingly visible between bracts), 4–6 × 7–10 mm, abaxial surface pubescent and sessile-glandular;

lobes (7–)10–13, deltate to triangular, 1/5 bract length.

bracts (normal flowers) crowded (inflorescence axis not visible between bracts), 8–12 × 3–4 mm, abaxial surface long-hirsute (hairs to 2 mm) and stipitate-glandular;

lobes 3–5, proximally deltate with linear tips, 3/4 bract length, smooth; of allomorphic flowers absent.

Acalypha chamaedrifolia

Acalypha alopecuroidea
Phenology Flowering and fruiting year-round, mainly spring–fall. Flowering and fruiting late summer–fall.
Habitat Rocky pine woods, disturbed areas. Disturbed areas.
Elevation 0–10 m. (0–0 ft.) 0–40 m. (0–100 ft.)
Distribution
from FNA
FL; West Indies
[BONAP county map]
from FNA
AL; FL; LA; Mexico; Central America; West Indies; n South America [Introduced in North America]
[BONAP county map]
Discussion

In the flora area, Acalypa chamaedrifolia is native to Miami-Dade and Monroe counties but has been sparingly, and apparently accidentally, introduced farther north.

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

Acalypha alopecuroidea has been established in the United States since at least the 1950s.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 166. FNA vol. 12, p. 167.
Parent taxa Euphorbiaceae > Acalypha Euphorbiaceae > Acalypha
Sibling taxa
A. alopecuroidea, A. arvensis, A. australis, A. californica, A. deamii, A. gracilens, A. monococca, A. monostachya, A. neomexicana, A. ostryifolia, A. phleoides, A. poiretii, A. radians, A. rhomboidea, A. setosa, A. virginica, A. wilkesiana
A. arvensis, A. australis, A. californica, A. chamaedrifolia, A. deamii, A. gracilens, A. monococca, A. monostachya, A. neomexicana, A. ostryifolia, A. phleoides, A. poiretii, A. radians, A. rhomboidea, A. setosa, A. virginica, A. wilkesiana
Synonyms Croton chamaedryfolius
Name authority (Lamarck) Müller Arg.: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 15(2): 879. (1866) Jacquin: Collectanea 3: 196. (1791)
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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