Acalypha poiretii

Sprengel

Syst. Veg. 3: 879. 1826. 1826

Common names: Poiret’s copperleaf
Basionyms: Acalypha macrostachyos Poiret in J. Lamarck et al. Encycl. 6: 208. 1804
Treatment appears in FNA Volume 12. Treatment on page 169. Mentioned on page 164.

Herbs, annual, 1–4 dm, monoecious. Stems erect, pubescent and sparsely hirsute. Leaves: petiole 1–4.5 cm; blade ovate to elliptic, 2–5 × 1–3.5 cm, base obtuse to rounded, margins serrate-crenate, apex acute. Inflorescences bisexual, axillary; peduncle 0.1–0.5 cm, pistillate portion 2–4 × 0.8–1.2 cm (shorter on proximal inflorescences), staminate portion 0.3–1 cm; allomorphic pistillate flowers common, terminal on staminate portion of inflorescences. Pistillate bracts (normal flowers) crowded (inflorescence axis not visible between bracts), 4–5 × 6–8 mm, abaxial surface pubescent and sparsely stipitate-glandular; lobes 7–9, triangular, 1/5 bract length; of allomorphic flowers absent. Pedicels of allomorphic flowers rudimentary. Pistillate flowers: pistil 3-carpellate (normal flowers), 1-carpellate (allomorphic flowers); styles unbranched. Capsules smooth, pubescent; allomorphic fruits obovoid, 1.2–1.5 × 1–1.2 mm, muricate, pubescent. Seeds 1.2–1.5 mm, minutely pitted.


Phenology: Flowering and fruiting late summer–fall.
Habitat: Disturbed areas.
Elevation: 10–100 m.

Distribution

Tex., c, e Mexico, Central America (Guatemala), West Indies, South America, Africa

Discussion

Acalypha poiretii is known in the flora area from the lower Rio Grande valley (Cameron, Hidalgo, and Starr counties). It was collected in the late nineteenth century on ballast dumps in Alabama, Florida, and New Jersey, but has not been reported again from any of these states.

Some authors (for example, R. Govaerts et al. 2000) have treated Acalypha poiretii and A. alnifolia Poiret as synonyms, in which case the latter would be the correct name for this species; however, the types of the two names clearly belong to different species.

Selected References

None.

Lower Taxa

None.

"elongated" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Acalypha poiretii"
stipitate-glandular +  and pubescent +
Geoffrey A. Levin +
Sprengel +
obtuse +  and rounded +
Acalypha macrostachyos +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
ovate;elliptic +
1cm;3.5cm +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
thread-like +
Poiret’s copperleaf +
Tex. +, c +, e Mexico +, Central America (Guatemala) +, West Indies +, South America +  and Africa +
10–100 m. +
0.12 cm1.2 mm <br />0.0012 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
muricate +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.12 cm1.2 mm <br />0.0012 m <br /> (?) +
Disturbed areas. +
drought-deciduous +  and persistent +
triangular +
palmate +  and pinnate +
dentate +, serrate +  and entire +
serrate-crenate +
allomorphic +, pistillate +  and staminate +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
connate;distinct +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Flowering and fruiting late summer–fall. +
1-carpellate +  and 3-carpellate +
staminate +  and pistillate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
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 />) +
deciduous +  and persistent +
connate +  and distinct +
2-fid +, laciniate +  and multifid +
Acalypha poiretii +
Acalypha +
species +
spikelike +