Difference between revisions of "Alternanthera sessilis"
Cat. Pl. Hort. Monsp., 77. 1813.
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|common_names=Sessile joyweed | |common_names=Sessile joyweed | ||
− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Gomphrena sessilis | |name=Gomphrena sessilis | ||
|authority=Linnaeus | |authority=Linnaeus | ||
+ | |publication_title=Sp. Pl. | ||
+ | |publication_place=1: 225. 1753 | ||
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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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_884.xml |
|genus=Alternanthera | |genus=Alternanthera | ||
|species=Alternanthera sessilis | |species=Alternanthera sessilis |
Revision as of 21:03, 24 September 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
![V4 884-distribution-map.gif](/w/images/3/34/V4_884-distribution-map.gif)
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.