Difference between revisions of "Carex oligosperma"
Fl. Bor.-Amer. 2: 174. 1803.
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|elevation=0–1200 m | |elevation=0–1200 m | ||
|distribution=Man.;N.B.;Nfld. and Labr.;N.S.;Ont.;Que.;Sask.;Yukon;Ind.;Maine;Mich.;Minn.;N.H.;N.Y.;N.C.;Ohio;Pa.;Vt.;Wis. | |distribution=Man.;N.B.;Nfld. and Labr.;N.S.;Ont.;Que.;Sask.;Yukon;Ind.;Maine;Mich.;Minn.;N.H.;N.Y.;N.C.;Ohio;Pa.;Vt.;Wis. | ||
− | |discussion=<p>Carex oligosperma hybridizes rarely with C. rostrata.</p> | + | |discussion=<p><i>Carex oligosperma</i> hybridizes rarely with <i>C. rostrata</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1803 | |publication year=1803 | ||
|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_937.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Vesicariae | |section=Carex sect. Vesicariae |
Revision as of 17:12, 18 September 2019
Plants loosely cespitose; rhizomes long. Culms obtusely trigonous in cross section, 30–90 cm, smooth or scabrous-angled distally. Leaves: basal sheaths reddish purple; ligules as wide as long to wider than long; blades dark green, wiry, filiform, with involute margins, 0.5–2.5 mm wide, glabrous. Inflorescences 3–20 cm; proximal bract 3–15(–25) cm, shorter than to exceeding inflorescence; proximal 1–2 spikes pistillate, erect, ovoid to cylindric; terminal 1(–2) spikes staminate. Pistillate scales ovate, 3.2–5.6 × 2.6–3.8 mm, shorter than perigynia, margins entire, apex obtuse to acute, awnless. Perigynia ascending, 7–15-veined, veins extending into beak, ovate, 4–6.7 × 2.5–3.4 mm, leathery, apex tapered; beak 0.3–0.9 mm, obscurely bidentulate, glabrous, teeth straight to somewhat outcurved, to 0.3 mm. Stigmas 3. Achenes brown, trigonous, smooth.
Phenology: Fruiting summer.
Habitat: Bogs, often forming extensive stands in Sphagnum-dominated areas, poor fens, sometimes in acidic, sandy, or peaty soils in open swamps, marshes, lakeshores, riverbanks
Elevation: 0–1200 m
Distribution
![V23 937-distribution-map.jpg](/w/images/e/ea/V23_937-distribution-map.jpg)
Man., N.B., Nfld. and Labr., N.S., Ont., Que., Sask., Yukon, Ind., Maine, Mich., Minn., N.H., N.Y., N.C., Ohio, Pa., Vt., Wis.
Discussion
Carex oligosperma hybridizes rarely with C. rostrata.
Selected References
None.