Alternanthera brasiliana

(Linnaeus) Kuntze

Revis. Gen. Pl. 2: 537. 1891.

Common names: Brazilian joyweed
Introduced
Basionym: Gomphrena brasiliana Linnaeus Cent. Pl. II, 13. 1756
Treatment appears in FNA Volume 4. Treatment on page 448.

Herbs or subshrubs, annual or perennial, 5–6 dm. Stems erect, villous, glabrate. Leaves sessile; blade ovate to lanceolate, 1–7 × 0.7–1 cm, herbaceous, villous. Inflorescences terminal and axillary, pedunculate; heads white, globose, 0.7–1 cm diam.; bracts keeled, shorter than to equaling tepals. Flowers: tepals monomorphic, green to stramineous, lanceolate, 3–4 mm, apex acuminate, villous, hairs not barbed; stamens 5; pseudostaminodes ligulate, margins fimbriate. Utricles included within tepals, brown, ellipsoid, 2 mm, apex acute. Seeds ovoid-oblong, 1.4 mm.


Phenology: Flowering spring.
Habitat: Sandy, wet, disturbed sites
Elevation: 0-10 m

Distribution

V4 878-distribution-map.gif

Introduced; Fla., Mexico, West Indies, Central America (Belize), Central America (Guatemala), Central America (Honduras), Central America (Nicaragua), South America

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Alternanthera brasiliana"
Steven E. Clemants +
(Linnaeus) Kuntze +
Gomphrena brasiliana +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
ovate +  and lanceolate +
0.7cm;1cm +
Brazilian joyweed +
Fla. +, Mexico +, West Indies +, Central America (Belize) +, Central America (Guatemala) +, Central America (Honduras) +, Central America (Nicaragua) +  and South America +
0-10 m +
peripheral +
hypogynous +
minute +  and small +
not +  and dehiscent +
Sandy, wet, disturbed sites +
several-flowered +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
globose +
subtending +
fimbriate +
Flowering spring. +
Revis. Gen. Pl. +
ovoid-oblong +
Introduced +
several-flowered +
cylindric +
decumbent +  and prostrate +
2-lobed +  and capitate +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Alternanthera brasiliana +
Alternanthera +
species +
green +  and stramineous +
distinct +
lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
indurate +, membranaceous +, chartaceous +  and scarious +
indehiscence +
ellipsoid +
2 cm20 mm <br />0.02 m <br /> (?) +
perennial +  and annual +
subshrub +  and herb +