View source for Sagittaria isoetiformis

{{Treatment/ID
|accepted_name=Sagittaria isoetiformis
|accepted_authority=J. G. Smith
|publications={{Treatment/Publication
|title=Rep. (Annual) Missouri Bot. Gard.
|place=6:115, plate 53. 1895
|year=1895
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Alismataceae;Sagittaria;Sagittaria isoetiformis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Alismataceae]]</div><div class="higher-taxon"><small>genus</small>[[Sagittaria]]</div><div class="higher-taxon"><small>species</small>[[Sagittaria isoetiformis]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, to 65 cm; rhizomes absent; stolons present; corms present. <b>Leaves</b> emersed or submersed, phyllodial or rarely dilated apically, flattened, 4–40 cm × 0.05–0.4(–0.5) cm. <b>Inflorescences</b> racemes, of 1–5 whorls, emersed, 2–20 × 1.5–12 cm; peduncles 7–59 cm; bracts connate more than or equal to ¼ total length, oblanceolate, 0.2–0.3 mm, delicate, not papillose; fruiting pedicels spreading, cylindric, 0.5–6 cm. <b>Flowers</b> to 1.3 cm diam.; sepals recurved to spreading, not enclosing flower; filaments dilated, shorter than anthers, minutely tomentose; pistillate pedicellate, without ring of sterile stamens. <b>Fruiting</b> heads 0.5–1 cm diam.; achenes obovoid, abaxially keeled, 2.2–2.8 × 1.5–2 mm, beaked; faces not tuberculate, wings 1–2, &#177; entire, glands 3–5; beak lateral, incurved-erect, 0.2 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Shores of sandy-bottomed lakes, se coastal plain
|elevation=0–100 m
|distribution=Ala.;Fla.;Ga.;N.C.;S.C.
|discussion=<p><i>Sagittaria isoetiformis</i> has often been misidentified as <i>Sagittaria teres</i> (E. O. Beal 1960b). The two species can be separated, however: <i>S. teres</i> has nearly terete phyllodia, whereas <i>S. isoetiformis</i> has flattened phyllodia (R. K. Godfrey and P. Adams 1964). A study of the genetics of the two species shows them to be genetically different, and the data indicate the two taxa actually should be considered at the specific level. The two species are capable of CAM photosynthesis, a process very uncommon in the genus and found among none of their supposedly closely related species (A. L. Edwards, pers. comm.).</p>
|tables=
|references={{Treatment/Reference
|id=godfrey1964a
|text=Godfrey, R. K. and P. Adams. 1964. The identity of Sagittaria isoetiformis (Alismataceae). Sida 1: 269--273.
}}
}}<!--

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-->{{#Taxon:
name=Sagittaria isoetiformis
|authority=J. G. Smith
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Alismataceae
|phenology=Flowering summer–fall.
|habitat=Shores of sandy-bottomed lakes, se coastal plain
|elevation=0–100 m
|distribution=Ala.;Fla.;Ga.;N.C.;S.C.
|reference=godfrey1964a
|publication title=Rep. (Annual) Missouri Bot. Gard.
|publication year=1895
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_170.xml
|genus=Sagittaria
|species=Sagittaria isoetiformis
}}<!--

-->[[Category:Treatment]][[Category:Sagittaria]]