Flora of North America species comparison

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Acalypha phleoides

Acalypha alopecuroidea

shrubby copperleaf

foxtail copperleaf
Habit Herbs, perennial, 2–5 dm, monoecious. Herbs, annual, 2–6 dm, monoecious.
Stems

erect, short-pubescent and hirsute.

erect, short-pubescent and stipitate-glandular.
Leaves

petiole 0.2–1 cm;

blade rhombic-ovate to ovate, or proximal suborbiculate, 2–6 × 1–3 cm, base acute to rounded, margins serrate to crenate-serrate, apex acute to acuminate.

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 0.3–0.5(–1) cm, pistillate portion 4–7 × 1.6–2 cm, staminate portion 0.5–3.5 cm;

allomorphic pistillate flowers rarely present, replacing all or part of staminate portion of inflorescence.

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 3–5 mm.

of allomorphic flowers 5–15 mm.
Pistillate flowers

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

styles multifid or laciniate.

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

styles unbranched or rarely 2-fid.
Capsules

muricate, pubescent;

allomorphic fruits obovoid, 2 × 1.5 mm, muricate, pubescent.

smooth, pubescent and stipitate-glandular or glabrate;

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

1.5–2 mm, minutely pitted.

1–1.1 mm, minutely pitted.
Pistillate

bracts (normal flowers) loosely arranged (inflorescence axis visible between bracts), 8–12 × 7–11 mm, abaxial surface sparsely pubescent and stipitate-glandular;

lobes (3–)5–7(–8), triangular to attenuate, 1/5–1/3 bract length or terminal lobe longer; of allomorphic flowers absent.

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.
2n

= 40 (Mexico).

Acalypha phleoides

Acalypha alopecuroidea
Phenology Flowering and fruiting spring–fall. Flowering and fruiting late summer–fall.
Habitat Rocky areas, grasslands, oak, pine, or juniper woodlands. Disturbed areas.
Elevation 100–2600 m. (300–8500 ft.) 0–40 m. (0–100 ft.)
Distribution
from FNA
AZ; NM; TX; Mexico; Central America (Guatemala)
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; FL; LA; Mexico; Central America; West Indies; n South America [Introduced in North America]
[BONAP county map]
Discussion

Plants from the United States have nearly always been called Acalypha lindheimeri, distinguished from A. phleoides on the basis of leaf shape and bract lobing. Although plants from Texas generally can be distinguished from plants from central Mexico southward, plants from intervening regions in the United States and Mexico include a full range of intermediates (G. A. Levin 1999b).

(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. 165. FNA vol. 12, p. 167.
Parent taxa Euphorbiaceae > Acalypha Euphorbiaceae > Acalypha
Sibling taxa
A. alopecuroidea, A. arvensis, A. australis, A. californica, A. chamaedrifolia, A. deamii, A. gracilens, A. monococca, A. monostachya, A. neomexicana, A. ostryifolia, 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 A. lindheimeri, A. lindheimeri var. major
Name authority Cavanilles: Anales Hist. Nat. 2: 139. (1800) 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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