View source for Scirpus flaccidifolius

{{Treatment/ID
|accepted_name=Scirpus flaccidifolius
|accepted_authority=(Fernald) Schuyler
|publications={{Treatment/Publication
|title=Rhodora
|place=69: 198. 1967
|year=1967
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms={{Treatment/ID/Basionym
|name=Scirpus atrovirens var. flaccidifolius
|authority=Fernald
|rank=variety
|publication_title=Rhodora
|publication_place=40: 396. 1938
}}
|synonyms=
|hierarchy=Cyperaceae;Scirpus;Scirpus flaccidifolius
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Scirpus]]</div><div class="higher-taxon"><small>species</small>[[Scirpus flaccidifolius]]</div></div>
|volume=Volume 23
|mention_page=page 11, 12, 14, 15
|treatment_page=page 13
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose; rhizomes short, tough, fibrous. <b>Culms</b>: fertile ones lax, reclining, inflorescences lopping over to (or nearly to) ground; nodes without axillary bulblets. <b>Leaves</b> 7–11 per culm; sheaths of proximal leaves light brown or whitish; proximal sheaths and blades with septa few to many, conspicuous or not; blades 30–63 cm × 9–14 mm. <b>Inflorescences</b> terminal, rarely also with 1 lateral inflorescence from distal leaf axil; rays ascending or divaricate (usually both in same inflorescence), proximal branches smooth, distal branches smooth or scabrellous, rays often bearing axillary bulblets; bases of involucral bracts green or margins brown or at least speckled with red-brown, not glutinous. <b>Spikelets</b> in dense clusters of 3–19 (largest cluster with 12 or more), spikelets sessile, ovoid or broadly ovoid, 3–4 × 2–3 mm; scales blackish with pale midribs, elliptic or broadly elliptic, 1.3–1.9 mm, apex mucronate, mucro 0.1–0.2 mm. <b>Flowers</b>: perianth bristles persistent, 6, slender, straight or curved, shorter than to slightly exceeding achene, with retrorse, thin-walled, round-tipped barbs in distal 0.2–0.5, enclosed within scales; styles 3-fid. <b>Achenes</b> almost white, elliptic or obovate in outline, plano-convex or plumply trigonous, 1–1.2 × 0.4–0.6 mm. <b>2n</b> = 54.</span><!--

-->{{Treatment/Body
|phenology=Fruiting late spring–early summer (Jun).
|habitat=Wooded bottomlands
|elevation=10–20 m
|distribution=N.C.;Va.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Scirpus flaccidifolius</i> is the most distinctive member of the <i>S. atrovirens</i> complex. The structure of the inflorescence is similar in all of these species, with a few long, nearly erect rays and many shorter, spreading to reflexed rays. The length of the rays is very variable in <i>S. flaccidifolius</i>, as in related species, but they may be very long in <i>S. flaccidifolius</i>, with the long, erect rays often being 15 cm or more (rarely to 25 cm).</p><!--
--><p><i>Scirpus flaccidifolius</i> is known from only six populations in its very limited range (less than 100 km across). It is very tolerant of human disturbance and does not seem to be declining.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Scirpus flaccidifolius
|authority=(Fernald) Schuyler
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Scirpus atrovirens var. flaccidifolius
|family=Cyperaceae
|phenology=Fruiting late spring–early summer (Jun).
|habitat=Wooded bottomlands
|elevation=10–20 m
|distribution=N.C.;Va.
|reference=None
|publication title=Rhodora
|publication year=1967
|special status=Illustrated;Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_7.xml
|genus=Scirpus
|species=Scirpus flaccidifolius
}}<!--

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