Difference between revisions of "Rhynchospora tracyi"
Trans. New York Acad. Sci. 11: 84. 1892.
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|name=Phaeocephalum tracyi | |name=Phaeocephalum tracyi | ||
|authority=(Britton) House | |authority=(Britton) House | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Schoenus triceps | |name=Schoenus triceps | ||
|authority=Vahl | |authority=Vahl | ||
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|elevation=0–100 m | |elevation=0–100 m | ||
|distribution=Ala.;Fla.;Ga.;La.;Miss.;N.C.;S.C.;Tex.;West Indies;Central America (Belize). | |distribution=Ala.;Fla.;Ga.;La.;Miss.;N.C.;S.C.;Tex.;West Indies;Central America (Belize). | ||
− | |discussion=<p>Rhynchospora tracyi frequently forms clones extending for acres by means of its long slender rhizomes. Its wandlike, terete, supple culms, and round-capitate clusters of spikelets suggest a rush more than a sedge.</p> | + | |discussion=<p><i>Rhynchospora tracyi</i> frequently forms clones extending for acres by means of its long slender rhizomes. Its wandlike, terete, supple culms, and round-capitate clusters of spikelets suggest a rush more than a sedge.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1892 | |publication year=1892 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_355.xml |
|genus=Rhynchospora | |genus=Rhynchospora | ||
|species=Rhynchospora tracyi | |species=Rhynchospora tracyi |
Revision as of 17:07, 18 September 2019
Plants perennial, clonal, to 120 cm; rhizomes scaly, slender, less than 2 mm thick. Culms erect, leafybased, wandlike, nearly terete, multiribbed. Leaves ascending or erect, longest nearly equaling culm; principal blades linear, involutecylindric, to 3 mm wide, apex tapering, subulate. Inflorescences terminal, heads 1–4, dense, macelike, 1–1.5 mm thick; involucral bracts leafy, proximalmost overtopping inflorescence. Spikelets greenish, lanceovoid, 5–6 mm, apex acuminate; fertile scales boat-shaped, 5 mm, apex acute to shortacuminate, midrib slightly excurrent or not. Flowers: perianth bristles 6, exceeding fruit body, antrorsely barbellate. Fruits 1 per spikelet, 6–8(–8.7) mm; body pale greenbrown, laterally compressed, obcordiform, 2.5–3(–4) mm, margins thick, rounded, not crimped, apex barely exserted, setulose, surfaces nearly plane, minutely cancellate (latticed); tubercle (style base) linear, angled, 4–6 mm, much narrower than fruit summit, setulose.
Phenology: Fruiting late spring–fall.
Habitat: Emergent in shallows of cypress domes, marshes and swales, ditches and ponds
Elevation: 0–100 m
Distribution
![V23 355-distribution-map.jpg](/w/images/7/73/V23_355-distribution-map.jpg)
Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., West Indies, Central America (Belize).
Discussion
Rhynchospora tracyi frequently forms clones extending for acres by means of its long slender rhizomes. Its wandlike, terete, supple culms, and round-capitate clusters of spikelets suggest a rush more than a sedge.
Selected References
None.