Difference between revisions of "Eleocharis erythropoda"
Syn. Pl. Glumac. 2: 76. 1855.
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|common_names=Éléocharide à tiges rouges | |common_names=Éléocharide à tiges rouges | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Scirpus glaucus | |name=Scirpus glaucus | ||
|authority=Torrey | |authority=Torrey | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Eleocharis;Eleocharis subg. Eleocharis;Eleocharis sect. Eleocharis;Eleocharis (sect. Eleocharis) ser. Eleocharis;Eleocharis erythropoda | |hierarchy=Cyperaceae;Eleocharis;Eleocharis subg. Eleocharis;Eleocharis sect. Eleocharis;Eleocharis (sect. Eleocharis) ser. Eleocharis;Eleocharis erythropoda | ||
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|elevation=0–2300 m | |elevation=0–2300 m | ||
|distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;Ont.;Que.;Sask.;Alaska;Ariz.;Ark.;Colo.;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo. | |distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;Ont.;Que.;Sask.;Alaska;Ariz.;Ark.;Colo.;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo. | ||
| − | |discussion=<p>Eleocharis erythropoda is extremely variable. Intermediates with E. palustris variant b are common in the region of sympatry in the East, and with E. macrostachya variant b in the West, and E. erythropoda is sometimes difficult to distinguish from E. uniglumis.</p><!-- | + | |discussion=<p><i>Eleocharis erythropoda</i> is extremely variable. Intermediates with <i>E. palustris</i> variant b are common in the region of sympatry in the East, and with <i>E. macrostachya</i> variant b in the West, and <i>E. erythropoda</i> is sometimes difficult to distinguish from <i>E. uniglumis</i>.</p><!-- |
| − | --><p>Eleocharis calva Torrey is an invalid name.</p> | + | --><p><i>Eleocharis</i> calva Torrey is an invalid name.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Eleocharis erythropoda | name=Eleocharis erythropoda | ||
| − | |||
|authority=Steudel | |authority=Steudel | ||
|rank=species | |rank=species | ||
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|publication title=Syn. Pl. Glumac. | |publication title=Syn. Pl. Glumac. | ||
|publication year=1855 | |publication year=1855 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_100.xml |
|genus=Eleocharis | |genus=Eleocharis | ||
|subgenus=Eleocharis subg. Eleocharis | |subgenus=Eleocharis subg. Eleocharis | ||
Latest revision as of 20:37, 5 November 2020
Plants perennial, mat-forming; rhizomes evident, long, 0.5–1.5 mm thick, soft to firm, cortex often breaking loose, longer internodes 5–30 mm, scales often fugaceous, 4–8 mm, membranous, not fibrous. Culms terete, often with 8–12 blunt ridges when dry, 8–80 cm × 0.3–1.4 mm, firm to soft, internally spongy. Leaves: distal leaf sheaths persistent, not splitting, proximally red (to stramineous), distally green to stramineous, usually inflated, often callose, membranous to papery, apex often red-brown, broadly obtuse to subacute, tooth sometimes present, to 0.1 mm. Spikelets ovoid to lanceoloid or nearly cylindric, 3–18 × 2–3(–4) mm, apex acute (to obtuse); proximal scale amplexicaulous, entire; subproximal scale with flower; floral scales often spreading in fruit, 15–50, 4–5 per mm of rachilla, medium brown to sometimes red-brown, midrib regions mostly stramineous to green, in proximal part of spikelet ovate, apex rounded, in distal part lanceolate, apex entire, acute, 2–3.5 × 1.5–1.7 mm, mostly carinate. Flowers: perianth bristles 4 or absent, light brown to stramineous, stout, usually equal, equaling achene to slightly exceeding tubercle; stamens 3; anthers dark yellow to stramineous, 1–1.8 mm, apiculate; styles 2-fid. Achenes not persistent, dark yellow, stramineous, or dark brown, obovoid to obpyriform, biconvex, angles obscure, 0.9–1.6 × 0.7–1.2 mm, apex rounded, neck absent to long, smooth at 30X, or sometimes finely rugulose at 10–30X with 20 or more horizontal ridges in a vertical series. Tubercles brown to whitish, pyramidal, much higher than wide to, lower than wide, 0.35–0.65 × 0.2–0.6 mm. 2n = 16, 18, 19, 20.
Phenology: Fruiting summer.
Habitat: Non-calcareous or calcareous fresh or brackish shores, marshes, meadows, fens, disturbed places
Elevation: 0–2300 m
Distribution
Alta., B.C., Man., N.B., N.W.T., Ont., Que., Sask., Alaska, Ariz., Ark., Colo., Conn., Del., Idaho, Ill., Ind., Iowa, Kans., Ky., Maine, Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.
Discussion
Eleocharis erythropoda is extremely variable. Intermediates with E. palustris variant b are common in the region of sympatry in the East, and with E. macrostachya variant b in the West, and E. erythropoda is sometimes difficult to distinguish from E. uniglumis.
Eleocharis calva Torrey is an invalid name.
Selected References
None.