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gale of the wind

Florida leaf-flower

Habit Herbs, annual, monoecious, 1–5 dm; branching phyllanthoid.
Stems

main stems terete, not winged, glabrous; ultimate branchlets subterete, not winged, glabrous.

Leaves

on main stems spiral, scalelike;

stipules not auriculate, brown.;

leaves on ultimate branchlets distichous, well developed;

stipules not auriculate, brown;

blade elliptic, 11–20 × 4.5–9 mm, base obtuse to rounded, apex obtuse, both surfaces glabrous.

Inflorescences

cymules or flowers solitary, unisexual, proximal with 3–7 staminate flowers, distal with 1 pistillate flower.

Pedicels

staminate 1.2–1.8 mm, pistillate spreading in fruit, 4–7 mm.

Staminate flowers

sepals 5(–6), pale green, flat, 1.5–3 mm;

nectary extrastaminal, 5(–6) glands;

stamens 3, filaments connate 1/2 length.

Pistillate flowers

sepals 5, green, flat, 3–3.5 mm, pinnately veined;

nectary annular, unlobed.

Capsules

3.5 mm diam., smooth.

Seeds

uniformly brown, 1.5–1.8 mm, verrucose.

2n

= 26 (Costa Rica).

Phyllanthus niruri

Phyllanthus liebmannianus

Phenology Flowering and fruiting late summer–fall.
Habitat River and stream banks, sand.
Elevation 60–120 m. (200–400 ft.)
Distribution
from USDA
Mexico; Central America; South America; West Indies
[BONAP county map]
from FNA
FL; e Mexico; Central America (Belize, Guatemala)
[BONAP county map]
Discussion

Phyllanthus niruri is found in the flora area only in DeWitt, Fayette, and Lavaca counties (and historically from Gonzales County, where it appears to be extirpated; L. E. Brown and S. J. Marcus 1998); it is widespread in the American tropics. Like P. urinaria, it is widely used in folk medicine and is the subject of intense pharmacological research. Plants from outside the West Indies and Caribbean northern South America often have been segregated as subsp. lathyroides; the differences are trivial and recent authors (G. L. Webster 2001; V. W. Steinmann 2007) did not subdivide the species.

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

Subspecies 2 (1 in the flora).

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

Source FNA vol. 12, p. 342. FNA vol. 12, p. 337.
Parent taxa Phyllanthaceae > Phyllanthus Phyllanthaceae > Phyllanthus
Sibling taxa
P. abnormis, P. acidus, P. amarus, P. angustifolius, P. caroliniensis, P. ericoides, P. evanescens, P. fluitans, P. fraternus, P. liebmannianus, P. pentaphyllus, P. polygonoides, P. tenellus, P. urinaria, P. warnockii
P. abnormis, P. acidus, P. amarus, P. angustifolius, P. caroliniensis, P. ericoides, P. evanescens, P. fluitans, P. fraternus, P. niruri, P. pentaphyllus, P. polygonoides, P. tenellus, P. urinaria, P. warnockii
Subordinate taxa
P. liebmannianus subsp. platylepis
Synonyms P. lathyroides, P. niruri subsp. lathyroides
Name authority Linnaeus: Sp. Pl. 2: 981. (1753) Müller Arg.: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 15(2): 366. (1866)
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