Difference between revisions of "Rhynchospora microcephala"
Fl. S.E. U.S., 195. 1903.
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|name=Rhynchospora axillaris var. microcephala | |name=Rhynchospora axillaris var. microcephala | ||
|authority=Britton | |authority=Britton | ||
+ | |rank=variety | ||
|publication_title=Trans. New York Acad. Sci. | |publication_title=Trans. New York Acad. Sci. | ||
|publication_place=11: 89. 1892 (as Rynchospora) | |publication_place=11: 89. 1892 (as Rynchospora) | ||
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|name=Rhynchospora cephalantha var. microcephala | |name=Rhynchospora cephalantha var. microcephala | ||
|authority=(Britton) Kükenthal | |authority=(Britton) Kükenthal | ||
+ | |rank=variety | ||
}} | }} | ||
|hierarchy=Cyperaceae;Rhynchospora;Rhynchospora microcephala | |hierarchy=Cyperaceae;Rhynchospora;Rhynchospora microcephala | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Rhynchospora microcephala | name=Rhynchospora microcephala | ||
− | |||
|authority=(Britton) Britton ex Small | |authority=(Britton) Britton ex Small | ||
|rank=species | |rank=species | ||
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|publication year=1903 | |publication year=1903 | ||
|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_366.xml |
|genus=Rhynchospora | |genus=Rhynchospora | ||
|species=Rhynchospora microcephala | |species=Rhynchospora microcephala |
Revision as of 20:07, 16 December 2019
Plants perennial, cespitose, 30–90 cm; rhizomes absent. Culms arching or erect, leafy, nearly terete, multiribbed, slender. Principal leaves overtopped by culm; blades linear, proximally flattened, 1–3 mm wide, apex tapering, trigonous. Inflorescences: spikelet clusters 2–6, mostly widely spaced; clusters dense, hemispheric to mostly spheroid, 0.5–1 cm thick. Spikelets dark redbrown to dark brown, lanceovoid, (2–)2.5–3.5(–4) mm, apex acute; fertile scales elliptic, 2–3 mm, apex acute, midrib shortexcurrent or not. Flowers: perianth bristles 6, reaching tubercle tip, retrorsely barbellate. Fruits 1 per spikelet, 2.5–3 mm; body pale brown with light center, lenticular, obovoid distal to stipe, 1.1–1.5 × 0.9–1.1 mm, margins pale, wirelike, surfaces slick; tubercle triangularsubulate, 0.9–1.2(–1.5) mm, at least 0.5 mm wide at base.
Phenology: Fruiting summer–fall.
Habitat: Sands and sandy peats of savanna swales, pineland seeps, bogs, ditches, pond shores and banks
Elevation: 0–200 m
Distribution
Ala., Del., D.C., Fla., Ga., La., Md., Miss., N.J., N.C., S.C., Va., West Indies (Cuba).
Discussion
Selected References
None.