View source for Sagittaria rigida

{{Treatment/ID
|accepted_name=Sagittaria rigida
|accepted_authority=Pursh
|publications={{Treatment/Publication
|title=Flora Americae Septentrionalis
|place=2: 397. 1814
|year=1814
}}
|common_names=Sessile-fruited arrowhead;Sagittaire dressee
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Alismataceae;Sagittaria;Sagittaria rigida
|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 rigida]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, to 115 cm; rhizomes absent; stolons present; corms present. <b>Leaves</b> emersed or submersed; submersed leaves phyllodial, flattened, 30–70 cm, rarely widening into blade; emersed leaves phyllodial, flattened, or petiole triangular, 34–50 cm, blade linear to elliptic, rarely hastate to sagittate, 5–15 × 0.6–12 cm, basal lobes when present shorter than remainder of blade. <b>Inflorescences</b> racemes, of 2–8 whorls, emersed, 8–10 × 2–6 cm; peduncles 10–115 cm; bracts connate more than or equal to ¼ total length, ovate, 3–6 mm, delicate, not papillose; fruiting pedicels absent. <b>Flowers</b> to 3 cm diam.; sepals recurved, not enclosing flower; filaments dilated, shorter than anthers, pubescent; pistillate sessile to subsessile, without ring of sterile stamens. <b>Fruiting</b> heads 1–1.7 cm diam.; achenes obovoid to oblong, abaxially keeled, 2–3 × 1.3–1.6 mm, beaked; face not tuberculate, wings 1–2, &#177; entire, glands 1; beak lateral, recurved, 0.8–1.4 mm. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer (Jul–Sep).
|habitat=Calcareous or brackish shallow water and shores of ponds, swamps, and rivers, occasionally in deep water
|elevation=0–1000 m
|distribution=Man.;Ont.;Que.;P.E.I.;Sask.;Ark.;Calif.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Nebr.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;Wash.;W.Va.;Wis.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Sagittaria rigida
|authority=Pursh
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Alismataceae
|phenology=Flowering summer (Jul–Sep).
|habitat=Calcareous or brackish shallow water and shores of ponds, swamps, and rivers, occasionally in deep water
|elevation=0–1000 m
|distribution=Man.;Ont.;Que.;P.E.I.;Sask.;Ark.;Calif.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Nebr.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;Wash.;W.Va.;Wis.
|reference=None
|publication title=Flora Americae Septentrionalis
|publication year=1814
|special status=Weedy;Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V22/V22_494.xml
|genus=Sagittaria
|species=Sagittaria rigida
}}<!--

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