Difference between revisions of "Alternanthera paronychioides"
Voy. Distr. Diam. 2: 439. 1833.
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|common_names=Smooth joyweed | |common_names=Smooth joyweed | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Illecebrum ficoideum | |name=Illecebrum ficoideum | ||
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|elevation=0-10 m | |elevation=0-10 m | ||
|distribution=Ala.;Del.;Fla.;Ga.;La.;Miss.;N.J.;N.C.;Pa.;S.C.;Tenn.;Tex.;Mexico;West Indies;Central America;South America;Asia;Africa;Pacific Islands. | |distribution=Ala.;Del.;Fla.;Ga.;La.;Miss.;N.J.;N.C.;Pa.;S.C.;Tenn.;Tex.;Mexico;West Indies;Central America;South America;Asia;Africa;Pacific Islands. | ||
| + | |introduced=true | ||
|discussion=<p>Plants identified as <i>Alternanthera paronychioides</i> var. amazonica Huber have been collected on salt flats in central Louisiana. The specimens I have seen are not sufficiently distinct to warrant varietal recognition.</p> | |discussion=<p>Plants identified as <i>Alternanthera paronychioides</i> var. amazonica Huber have been collected on salt flats in central Louisiana. The specimens I have seen are not sufficiently distinct to warrant varietal recognition.</p> | ||
|tables= | |tables= | ||
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|publication title=Voy. Distr. Diam. | |publication title=Voy. Distr. Diam. | ||
|publication year=1833 | |publication year=1833 | ||
| − | |special status= | + | |special status=Introduced |
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V4/V4_885.xml |
|genus=Alternanthera | |genus=Alternanthera | ||
|species=Alternanthera paronychioides | |species=Alternanthera paronychioides | ||
Revision as of 23:20, 27 May 2020
Herbs, perennial, 1–8 dm. Stems prostrate, villous, glabrate. Leaves sessile; blade elliptic, ovate-rhombic, or oval, 0.6–2.5 × 0.3–1.1 cm, apex acute or obtuse, villous, soon glabrate. Inflorescences axillary, sessile; heads white, globose, 0.5–1 cm diam.; bracts less than 1/2 as long as tepals. Flowers: tepals monomorphic, white, lanceolate, 3–5 mm, apex acuminate, without rigid, spinose tips, hairs not barbed; stamens 5; anthers 3–5, globose; pseudostaminodes ligulate, shorter than filaments, margins entire or dentate. Utricles included within tepals, stramineous, orbiculate to rounded-obovate, 2–2.3 mm, apex truncate. Seeds lenticular, 1.2–1.5 mm.
Phenology: Flowering spring–late fall, year-round in far south.
Habitat: Ballast ground, swamps, sandy places, limestone near salt water
Elevation: 0-10 m
Distribution
Introduced; Ala., Del., Fla., Ga., La., Miss., N.J., N.C., Pa., S.C., Tenn., Tex., Mexico, West Indies, Central America, South America, Asia, Africa, Pacific Islands.
Discussion
Plants identified as Alternanthera paronychioides var. amazonica Huber have been collected on salt flats in central Louisiana. The specimens I have seen are not sufficiently distinct to warrant varietal recognition.
Selected References
None.