Difference between revisions of "Fimbristylis tomentosa"
Enum. Pl. 2: 290. 1805.
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|place=2: 290. 1805 | |place=2: 290. 1805 | ||
|year=1805 | |year=1805 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
}} | }} | ||
|basionyms= | |basionyms= | ||
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|elevation=0–200 m | |elevation=0–200 m | ||
|distribution=Ala.;Ark.;Fla.;Ga.;La.;Miss.;N.C.;S.C.;Tex.;Asia. | |distribution=Ala.;Ark.;Fla.;Ga.;La.;Miss.;N.C.;S.C.;Tex.;Asia. | ||
| + | |introduced=true | ||
|discussion=<p><i>Fimbristylis tomentosa</i> apparently was introduced with early rice culture and is rapidly expanding its range.</p> | |discussion=<p><i>Fimbristylis tomentosa</i> apparently was introduced with early rice culture and is rapidly expanding its range.</p> | ||
|tables= | |tables= | ||
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|publication title=Enum. Pl. | |publication title=Enum. Pl. | ||
|publication year=1805 | |publication year=1805 | ||
| − | |special status= | + | |special status=Introduced;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_190.xml |
|genus=Fimbristylis | |genus=Fimbristylis | ||
|species=Fimbristylis tomentosa | |species=Fimbristylis tomentosa | ||
Latest revision as of 20:39, 5 November 2020
Plants annual, cespitose, to 75 cm; rhizomes absent. Leaves nearly distichous, ascending, 1/2–3/4 length of culms; sheath margins ciliolate, adaxial surface sparsely to copiously hirtellous distally; ligule present, complete; blades narrowly linear, 2–4(–5) mm wide, flat to shallowly involute, margins ciliate-scabrid, abaxial surface pilose-hirsute. Inflorescences: anthelae compound, ascending-branched, longer than broad; scapes distally oval or flattened, glabrous to pubescent; longest involucral bract exceeding anthela. Spikelets rusty brown, lanceoloid, 4–6 mm; fertile scales broadly ovate to nearly orbiculate, 2–3 mm, broadly acute, midrib excurrent as mucro or cusp. Flowers: stamens 2; styles 2-fid, flat, fimbriate. Achenes pale to dark brown with pale umbo, lenticular-obpyriform, 1.7–2 mm, finely pitted, appearing nearly smooth, the pits in at least 20 narrow vertical rows per face. 2n = 10.
Phenology: Fruiting summer–fall.
Habitat: Moist to wet sands, silts or peats of low fields, clearings, waste areas, stream and pond banks, very weedy in ricelands
Elevation: 0–200 m
Distribution
Introduced; Ala., Ark., Fla., Ga., La., Miss., N.C., S.C., Tex., Asia.
Discussion
Fimbristylis tomentosa apparently was introduced with early rice culture and is rapidly expanding its range.
Selected References
None.