View source for Sparganium androcladum

{{Treatment/ID
|accepted_name=Sparganium androcladum
|accepted_authority=(Engelmann) Morong
|publications={{Treatment/Publication
|title=Bulletin of the Torrey Botanical Club
|place=15: 78. 1888
|year=1888
}}
|common_names=Rubanier rameux
|basionyms={{Treatment/ID/Synonym
|name=Sparganium simplex var. androcladum
|authority=Engelmann
}}
|synonyms={{Treatment/ID/Synonym
|name=Sparganium americanum var. androcladum
|authority=(Engelmann) Fernald & Eames
}}
|hierarchy=Sparganiaceae;Sparganium;Sparganium androcladum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Sparganiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Sparganium]]</div><div class="higher-taxon"><small>species</small>[[Sparganium androcladum]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>robust, to 1.2 m; leaves and inflorescences erect, emergent. <b>Leaves</b> stiff, keeled from base at least to middle, flattened distally, to 1.2 m × 5–15 mm. <b>Inflorescences</b>: rachis (0–)1–3 branched, erect, bracts strongly ascending, not basally inflated; pistillate heads (1–)2–4 on main rachis, 0(–2) on lateral branches, axillary, not contiguous, sessile or short-peduncled, 2.5–3.5 cm diam. in fruit; staminate heads 3–8 on main rachis, 1–6 on lateral rachises, most not contiguous. <b>Flowers</b>: tepals often with prominent subapical dark spot, subentire to entire; stigma 1, linear. <b>Fruits</b> brown, proximally dull, distally shiny, subsessile to short-stipitate, fusiform, usually constricted near equator, body not strongly faceted, 5–7 × 2.5–3 mm, tapering to beak; beak often curved and hooked, 4–7 mm; tepals attached at base, reaching to equator or somewhat beyond. <b>Seeds</b> 1.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–summer (Apr–Jul).
|habitat=Shores and shallow, quiet, circumneutral waters
|elevation=0–800 m
|distribution=Ont.;Que.;Ark.;Conn.;Ill.;Ind.;Iowa;Ky.;Maine;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;Ohio;Okla.;Pa.;R.I.;Tenn.;Vt.;W.Va.;Wis.
|discussion=<p><i>Sparganium androcladum</i> is less variable than the similar and more common <i>S. americanum</i>, from which it is distinguished by its generally larger size and more robust habit; leaves stiffer, wider, more strongly keeled; inflorescence branches usually without pistillate heads, the bracts ascending; fruiting heads larger; fruits distally shiny, the beak longer and hooked. Immature fruits of <i>S. androcladum</i> resemble mature fruits of <i>S. americanum</i>. Some specimens will not key readily to either species. The complex nomenclatural history is discussed by C. D. K. Cook and M. S. Nicholls (1987).</p><!--
--><p><i>Sparganium androcladum</i> has an unusual, discontinuous distribution, which is wholly within the range of <i>S. americanum</i>, except in the central Mississippi Valley (M. L. Fernald 1922b). In the absence of convincing specimens, the presence of <i>S. androcladum</i> in Virginia cannot be confirmed, although E. O. Beal (1960) reported it there, and it occurs nearby in West Virginia.</p>
|tables=
|references=
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-->{{#Taxon:
name=Sparganium androcladum
|author=
|authority=(Engelmann) Morong
|rank=species
|parent rank=genus
|synonyms=Sparganium americanum var. androcladum
|basionyms=Sparganium simplex var. androcladum
|family=Sparganiaceae
|phenology=Flowering late spring–summer (Apr–Jul).
|habitat=Shores and shallow, quiet, circumneutral waters
|elevation=0–800 m
|distribution=Ont.;Que.;Ark.;Conn.;Ill.;Ind.;Iowa;Ky.;Maine;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;Ohio;Okla.;Pa.;R.I.;Tenn.;Vt.;W.Va.;Wis.
|reference=None
|publication title=Bulletin of the Torrey Botanical Club
|publication year=1888
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V22/V22_26.xml
|genus=Sparganium
|species=Sparganium androcladum
}}<!--

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