View source for Eleocharis mamillata subsp. mamillata

{{Treatment/ID
|accepted_name=Eleocharis mamillata subsp. mamillata
|accepted_authority=unknown
|publications=
|common_names=Éléocharide à tétons
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Eleocharis;Eleocharis subg. Eleocharis;Eleocharis sect. Eleocharis;Eleocharis (sect. Eleocharis) ser. Eleocharis;Eleocharis mamillata;Eleocharis mamillata subsp. mamillata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Eleocharis]]</div><div class="higher-taxon"><small>subgenus</small>[[Eleocharis subg. Eleocharis]]</div><div class="higher-taxon"><small>section</small>[[Eleocharis sect. Eleocharis]]</div><div class="higher-taxon"><small>series</small>[[Eleocharis (sect. Eleocharis) ser. Eleocharis]]</div><div class="higher-taxon"><small>species</small>[[Eleocharis mamillata]]</div><div class="higher-taxon"><small>subspecies</small>[[Eleocharis mamillata subsp. mamillata]]</div></div>
|volume=Volume 23
|mention_page=page 73
|treatment_page=page 74
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, mat-forming; rhizomes evident, long, 0.7–1 mm thick, soft, cortex persistent, longer internodes 2–6 cm, scales often fugaceous, 5–9 mm, membranous, not fibrous. <b>Culms</b> terete, often with 8–14 blunt ridges when dry, 10–50 cm × 0.5–3 mm, very soft, internally spongy. <b>Leaves</b>: distal leaf sheaths persistent, often splitting abaxially, mostly reddish proximally, green to stramineous distally, not inflated, not callose, membranous, apex obtuse, tooth absent. <b>Spikelets</b> ovoid, 5–20 × 3–5 mm, acute; proximal scale clasping 2/3 of culm, entire; subproximal scale empty; floral scales often spreading in fruit, 15–80, 5 per mm of rachilla, medium brown, midrib regions stramineous or greenish, ovate, 2.5–4 × 1.5–2 mm, entire, apex acute to obtuse, sometimes carinate in distal part of spikelet. <b>Flowers</b>: perianth bristles (4–)5–6(–8), brown, slender to stout, mostly exceeding tubercle, to 2 times longer than achene; stamens 3; anthers stramineous, 0.9–1.5 mm; styles 2-fid. <b>Achenes</b> not persistent, yellow maturing to stramineous, biconvex, angles obscure, obovoid (to obpyriform), 1–1.4 × 0.9–1.3 mm, apex rounded, neck absent, smooth at 30X. <b>Tubercles</b> brown to partly whitish, pyramidal to mamillate, lower than to as high as wide, 0.2–0.6 × 0.4–0.6 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer.
|habitat=Fresh lakeshores, shallow ponds, streams, floating mats, bogs, fens, ditches
|elevation=20–800 m
|distribution=Alta.;B.C.;N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Minn.;Wash.;Wis.;Eurasia.
|discussion=<p><i>Eleocharis mamillata</i> has been confused in North America with <i>E. macrostachya</i> and <i>E. palustris</i>. In addition to the perianth bristle and achene differences as given in the key, <i>E. mamillata</i> differs from <i>E. palustris</i> in culm stomate shape and distance between epidermal collenchyma strands (S. M. Walters 1953b; S.-O. Strandhede and R. Dahlgren 1968). <i>Eleocharis mamillata </i>subsp.<i> mamillata</i>, with the tubercle mamillate, usually shorter than wide, and subsp. austriaca (Hayek) Strandhede, with the tubercle conic, longer than wide, are recognized in Europe; in North America only <i>E. mamillata </i>subsp.<i> mamillata</i> is thus far known. The stamen filaments usually remain attached to the shed achenes, and together with the bristles they keep the achenes in ball-like aggregates that drift with winds and water currents (S.-O. Strandhede 1966).</p>
|tables=
|references=
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-->{{#Taxon:
name=Eleocharis mamillata subsp. mamillata
|author=
|authority=unknown
|rank=subspecies
|parent rank=species
|synonyms=
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer.
|habitat=Fresh lakeshores, shallow ponds, streams, floating mats, bogs, fens, ditches
|elevation=20–800 m
|distribution=Alta.;B.C.;N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Minn.;Wash.;Wis.;Eurasia.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V23/V23_98.xml
|genus=Eleocharis
|subgenus=Eleocharis subg. Eleocharis
|section=Eleocharis sect. Eleocharis
|series=Eleocharis (sect. Eleocharis) ser. Eleocharis
|species=Eleocharis mamillata
|subspecies=Eleocharis mamillata subsp. mamillata
}}<!--

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