Difference between revisions of "Alternanthera sessilis"
Cat. Pl. Hort. Monsp., 77. 1813.
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|name=Gomphrena sessilis | |name=Gomphrena sessilis | ||
|authority=Linnaeus | |authority=Linnaeus | ||
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|publication_title=Sp. Pl. | |publication_title=Sp. Pl. | ||
|publication_place=1: 225. 1753 | |publication_place=1: 225. 1753 | ||
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name=Alternanthera sessilis | name=Alternanthera sessilis | ||
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|authority=(Linnaeus) R. Brown ex de Candolle | |authority=(Linnaeus) R. Brown ex de Candolle | ||
|rank=species | |rank=species | ||
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|publication year=1813 | |publication year=1813 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_884.xml |
|genus=Alternanthera | |genus=Alternanthera | ||
|species=Alternanthera sessilis | |species=Alternanthera sessilis | ||
Revision as of 21:43, 16 December 2019
Herbs, annual or perennial, 2–6 dm. Stems procumbent, pubescent in lines, glabrate. Leaves sessile; blade elliptic to oblong or oblanceolate, 1.2–5 × 0.5–2.2 cm, apex obtuse to acute, glabrous. Inflorescences axillary, sessile; heads white, subglobose or ovoid, 0.5–1.1 cm; bracts keeled, ca. 1/2 as long as tepals. Flowers: tepals white, ovate to lanceolate, 2–3.5 mm, apex acuminate, hairs not barbed; stamens 5; anthers 3–5, globose; pseudostaminodes subulate, margins laciniate. Utricles included within tepals, sides exerted in mature fruit, greenish stramineous, obcordate, 1.3–1.7 mm, apex retuse. Seeds lenticular, 0.9–1.1 mm.
Phenology: Flowering summer–early fall.
Habitat: Wet disturbed areas
Elevation: 0-20 m
Distribution
Ala., Fla., Ga., La., Mexico, West Indies, Central America (Belize, Costa Rica, Guatemala, Nicaragua, Panama), South America, Africa, Asia.
Discussion
Alternanthera sessilis is reported from Maryland, Mississippi, South Carolina, and Texas, but I have seen no specimens from these states.
Selected References
None.