View source for Schoenoplectus erectus subsp. raynalii

{{Treatment/ID
|accepted_name=Schoenoplectus erectus subsp. raynalii
|accepted_authority=(Schuyler) Lye
|publications={{Treatment/Publication
|title=Nordic J. Bot.
|place=3: 243. 1983
|year=1983
}}
|basionyms={{Treatment/ID/Synonym
|name=Scirpus raynalii
|authority=Schuyler
}}
|synonyms={{Treatment/ID/Synonym
|name=Scirpus erismanae
|authority=Schuyler
}} {{Treatment/ID/Synonym
|name=Scirpus wilkensii
|authority=Schuyler
}}
|hierarchy=Cyperaceae;Schoenoplectus;Schoenoplectus sect. Supini;Schoenoplectus erectus;Schoenoplectus erectus subsp. raynalii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Schoenoplectus]]</div><div class="higher-taxon"><small>section</small>[[Schoenoplectus sect. Supini]]</div><div class="higher-taxon"><small>species</small>[[Schoenoplectus erectus]]</div><div class="higher-taxon"><small>subspecies</small>[[Schoenoplectus erectus subsp. raynalii]]</div></div>
|volume=Volume 23
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual; rhizomes 1 mm diam. <b>Culms</b> cylindric, ridged when dry, 0.05–0.5 m × 0.5–1 mm. <b>Leaves</b> 3–4, 1 cauline, nearly equaling culm; sheaths disintegrating to fibers; blades 1–2, thickly C-shaped in cross section, distally flat, from much shorter to ca. 1/2 as long as sheath, 0–200 × 0.2–1 mm, smooth or margins distally spinulose. <b>Inflorescences</b> capitate or of 1 spikelet or rarely with 1 or 2 branches to 3 cm; proximal bract erect, resembling leaf blades, 5–200 mm. <b>Spikelets</b> 1–10, 5–13 × 2–3 mm; scales straw-colored or often flanks distally bright orange-brown, central region often greenish, ovate, 2.5–3.4(–5) × 1.5 mm, smooth or awn sparsely spinulose, margins ciliolate, midrib keeled distally, apex acute, awn 0.2–0.3 mm or to 2 mm on proximal scale. <b>Flowers</b>: perianth absent; anthers 0.5 mm; styles 2-fid or rarely few 3-fid. <b>Spikelet</b> achenes blackish brown when ripe, unequally biconvex to obscurely trigonous, adaxial surface longitudinally convex and horizontally concave with a convex center, ovoid to obovoid, 1–1.6 × 1–1.5 mm, with 12–15 sharp to blunt ridges; beak 0.1 mm. <b>Amphicarpic</b> achenes thickly trigonous with rounded abaxial faces, ellipsoid, prominently beaked, 2.2–3.2 mm, rugose. <b>2n</b> = 10.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–fall, spring (Texas).
|habitat=Wet soils or emergent, freshwater shores, temporary ponds, ditches, usually sandy and often drying areas
|elevation=0–100 m
|distribution=Ala.;Fla.;Ga.;S.C.;Tex.;Mexico (Quintana Roo;Tamaulipas);South America (Argentina;Paraguay);Asia (Vietnam);Africa;Australia.
|discussion=<p>Many specimens of <i>Schoenoplectus erectus </i>subsp.<i> raynalii</i> are misidentified as <i>Schoenoplectus hallii</i> or <i>S. saximontanus</i>. North American <i>Scirpus</i> erismanae and S. wilkensii (A. E. Schuyler 1969) were placed in synonymy under <i>Schoenoplectus erectus</i> (J. Raynal 1976). North American plants are indistinguishable from eastern and southern African plants. <i>Schoenoplectus erectus</i> subsp. erectus differs in its “wrinkled” achenes with faint ridges and is reported only from Mauritius (the type locality), Madagascar, and associated islands. The name <i>Scirpus</i> erectus has long been misapplied in the Old World to <i>Scirpus</i> juncoides Roxburgh in the broad sense, which is related to <i>S. purshianus</i> and <i>S. smithii</i> in 7c. <i>Schoenoplectus </i>sect.<i> Actaeogeton</i>.</p>
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|references=
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-->{{#Taxon:
name=Schoenoplectus erectus subsp. raynalii
|author=
|authority=(Schuyler) Lye
|rank=subspecies
|parent rank=species
|synonyms=Scirpus erismanae;Scirpus wilkensii
|basionyms=Scirpus raynalii
|family=Cyperaceae
|phenology=Fruiting summer–fall, spring (Texas).
|habitat=Wet soils or emergent, freshwater shores, temporary ponds, ditches, usually sandy and often drying areas
|elevation=0–100 m
|distribution=Ala.;Fla.;Ga.;S.C.;Tex.;Mexico (Quintana Roo;Tamaulipas);South America (Argentina;Paraguay);Asia (Vietnam);Africa;Australia.
|reference=None
|publication title=Nordic J. Bot.
|publication year=1983
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_91.xml
|genus=Schoenoplectus
|section=Schoenoplectus sect. Supini
|species=Schoenoplectus erectus
|subspecies=Schoenoplectus erectus subsp. raynalii
}}<!--

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