Acalypha alopecuroidea

Jacquin

Collectanea 3: 196. 1791. 1791

Common names: Foxtail copperleaf
Introduced
Treatment appears in FNA Volume 12. Treatment on page 167. Mentioned on page 164.

Herbs, annual, 2–6 dm, monoecious. Stems erect, short-pubescent and stipitate-glandular. Leaves: 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 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. Pistillate 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. Pedicels of allomorphic flowers 5–15 mm. Pistillate flowers: pistil 3-carpellate (normal flowers), 1 (–2) -carpellate (allomorphic flowers); styles unbranched or rarely 2-fid. Capsules smooth, pubescent and stipitate-glandular or glabrate; allomorphic fruits obovoid, 1–1.5 × 0.9–1.2 mm, muricate, hirsute. Seeds 1–1.1 mm, minutely pitted.


Phenology: Flowering and fruiting late summer–fall.
Habitat: Disturbed areas.
Elevation: 0–40 m.

Distribution

V12 539-distribution-map.jpg

Introduced; Ala., Fla., La., Mexico, West Indies, Central America, n South America

Discussion

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

Selected References

None.

Lower Taxa

None.

"elongated" is not a number.No values specified.

... more about "Acalypha alopecuroidea"
stipitate-glandular +  and long-hirsute +
Geoffrey A. Levin +
Jacquin +
subcordate +  and rounded +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ovate;broadly ovate +
1.5cm;5cm +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
thread-like +
glabrate +, stipitate-glandular +  and pubescent +
Foxtail copperleaf +
Ala. +, Fla. +, La. +, Mexico +, West Indies +, Central America +  and n South America +
0–40 m. +
1mm +  and 1.5mm +
muricate +
obovoid +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +  and 0.12 cm1.2 mm <br />0.0012 m <br /> (?) +
Disturbed areas. +
staminate +  and pistillate +
drought-deciduous +  and persistent +
deltate +
palmate +  and pinnate +
crenate +  and subentire +
allomorphic +, pistillate +  and staminate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
pistillate +  and staminate +
stipitate-glandular +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
connate;distinct +
stipitate-glandular +
0.5 cm5 mm <br />0.005 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering and fruiting late summer–fall. +
1(-2)-carpellate +  and 3-carpellate +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Collectanea +
ellipsoid +  and subglobose +
not petaloid +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Introduced +
deciduous +  and persistent +
connate +  and distinct +
Acalypha alopecuroidea +
Acalypha +
species +
spikelike +