View source for Podostemum ceratophyllum

{{Treatment/ID
|accepted_name=Podostemum ceratophyllum
|accepted_authority=Michaux
|publications={{Treatment/Publication
|title=Fl. Bor.-Amer.
|place=2: 165, plate 44. 1803
|year=1803
}}
|common_names=Podostémon à feuilles cornées
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Lacis ceratophylla
|authority=(Michaux) Bongard
}} {{Treatment/ID/Synonym
|name=Podostemum abrotanoides
|authority=Nuttall
}} {{Treatment/ID/Synonym
|name=P. ceratophyllum var. abrotanoides
|authority=(Nuttall) Weddell
}} {{Treatment/ID/Synonym
|name=P. ceratophyllum var. circumvallatum
|authority=P. Royen
}} {{Treatment/ID/Synonym
|name=P. ceratophyllum var. fluitans
|authority=Weddell
}}
|hierarchy=Podostemaceae;Podostemum;Podostemum ceratophyllum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Podostemaceae]]</div><div class="higher-taxon"><small>genus</small>[[Podostemum]]</div><div class="higher-taxon"><small>species</small>[[Podostemum ceratophyllum]]</div></div>
|volume=Volume 6
|mention_page=
|treatment_page=page 70
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>flattened or elliptic, 0.3–1.1 mm diam. <b>Stems</b> 1.8–9 mm apart, 0.4–300 × 0.5–1.5 mm at base. <b>Leaves</b>: stipules caducous (absent from leaves 3–9 nodes back from stem apex), 0.5–3.6 mm, margins entire; petiole arising perpendicular to stem axis or upright, 0.4–59 mm; blade 1–13 times dichotomously divided, 1.7–142 mm, ultimate divisions flattened, spatulate, linear, or awl-shaped, 0.2–40 × 0.05–0.8 mm, central vein faint or absent. <b>Inflorescences</b>: spathella 1.5–6.2 × 0.8–1.8 mm. <b>Pedicels</b> 0.4–2.9 mm, to 0.6–10.5 mm in anthesis, 0.5–9 mm in fruit. <b>Flowers</b>: tepals linear or awl-shaped, apex acute, lateral tepals 0.7–2 mm, andropodial tepals 0.1–1.1 mm; andropodium 0.1–3.3 mm, 0.7–4.3 mm in anthesis; filaments 0.2–0.9 mm, 0.3–2 mm in anthesis; anthers 0.5–1.5 × 0.4–0.8 mm; ovary 0.7–2.6 × 0.4–1.4 mm; stigmas 0.3–1.4 mm, 0.4–1.5 mm in anthesis. <b>Capsules</b> 1.4–3.1 × 0.7–1.7 mm. <b>Seeds</b> 0.4–0.8 × 0.5–0.8 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Sep.
|habitat=Attached to rocks and other solid substrata in swift currents
|elevation=0–800 m
|distribution=N.B.;N.S.;Ont.;P.E.I.;Que.;Ala.;Ark.;Conn.;Ga.;Ky.;La.;Maine;Md.;Mass.;Miss.;N.H.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Vt.;Va.;W.Va.;West Indies (Dominican Republic);Central America (Honduras).
|discussion=<p><i>Podostemum ceratophyllum</i> is listed as rare, endangered, or of special concern in some regions. Paucity of appropriate habitat and human disturbances (for example, siltation, damming) have contributed to conservation concerns.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Podostemum ceratophyllum
|author=
|authority=Michaux
|rank=species
|parent rank=genus
|synonyms=Lacis ceratophylla;Podostemum abrotanoides;P. ceratophyllum var. abrotanoides;P. ceratophyllum var. circumvallatum;P. ceratophyllum var. fluitans
|basionyms=
|family=Podostemaceae
|phenology=Flowering Jun–Sep.
|habitat=Attached to rocks and other solid substrata in swift currents
|elevation=0–800 m
|distribution=N.B.;N.S.;Ont.;P.E.I.;Que.;Ala.;Ark.;Conn.;Ga.;Ky.;La.;Maine;Md.;Mass.;Miss.;N.H.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Vt.;Va.;W.Va.;West Indies (Dominican Republic);Central America (Honduras).
|reference=None
|publication title=Fl. Bor.-Amer.
|publication year=1803
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V6/V6_112.xml
|genus=Podostemum
|species=Podostemum ceratophyllum
}}<!--

-->[[Category:Treatment]][[Category:Podostemum]]