Difference between revisions of "Fimbristylis tomentosa"
Enum. Pl. 2: 290. 1805.
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|name=Fimbristylis diphylla var. pluristriata | |name=Fimbristylis diphylla var. pluristriata | ||
|authority=C. B. Clarke | |authority=C. B. Clarke | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Fimbristylis podocarpa | |name=Fimbristylis podocarpa | ||
|authority=Nees | |authority=Nees | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Fimbristylis;Fimbristylis tomentosa | |hierarchy=Cyperaceae;Fimbristylis;Fimbristylis tomentosa | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Fimbristylis tomentosa | name=Fimbristylis tomentosa | ||
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|authority=Vahl | |authority=Vahl | ||
|rank=species | |rank=species | ||
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|publication year=1805 | |publication year=1805 | ||
|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/V23/V23_190.xml |
|genus=Fimbristylis | |genus=Fimbristylis | ||
|species=Fimbristylis tomentosa | |species=Fimbristylis tomentosa | ||
Revision as of 20:05, 16 December 2019
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
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.