View source for Rorippa amphibia

{{Treatment/ID
|accepted_name=Rorippa amphibia
|accepted_authority=(Linnaeus) Besser
|publications={{Treatment/Publication
|title=Enum. Pl.,
|place=27. 1821
|year=1821
}}
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms={{Treatment/ID/Basionym
|name=Sisymbrium amphibium
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=2: 657. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Armoracia amphibia
|authority=(Linnaeus) Petermann
|rank=species
}} {{Treatment/ID/Synonym
|name=Brachiolobos amphibius
|authority=(Linnaeus) Allioni
|rank=species
}} {{Treatment/ID/Synonym
|name=Cochlearia amphibia
|authority=(Linnaeus) Ledebour
|rank=species
}} {{Treatment/ID/Synonym
|name=Myagrum amphibium
|authority=(Linnaeus) Loiseleur
|rank=species
}} {{Treatment/ID/Synonym
|name=Nasturtium amphibium
|authority=(Linnaeus) W. T. Aiton
|rank=species
}} {{Treatment/ID/Synonym
|name=Radicula amphibia
|authority=(Linnaeus) Druce
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Rorippa;Rorippa amphibia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Cardamineae]]</div><div class="higher-taxon"><small>genus</small>[[Rorippa]]</div><div class="higher-taxon"><small>species</small>[[Rorippa amphibia]]</div></div>
|volume=Volume 7
|mention_page=page 494, 495
|treatment_page=page 497
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (submerged aquatic, rooting from proximal nodes, forming clumps); glabrous or pubescent proximally on young leaves. <b>Stems</b> prostrate basally (hollow), branched, (2–)4–12(–13) dm. <b>Basal</b> leaves not rosulate; blade margins pinnatifid. <b>Cauline</b> leaves (proximal) petiolate, (distal) sessile; blade pectinate or pinnatisect to pinnatifid (especially when submerged), oblanceolate to elliptic, 4–12 cm × 5–30 mm, base auriculate or not, margins entire or denticulate to serrate (emergent ones usually undivided, rarely lobed). <b>Racemes</b> considerably elongated. <b>Fruiting</b> pedicels horizontal to reflexed, straight or recurved, (5–)7–15(–18) mm. <b>Flowers</b>: sepals erect, oblong, 2.5–3.5 × 1–1.7 mm; petals yellow, obovate, (3.3–)3.8–5.5(–6.2) × 1.5–2.5 mm; median filaments 3–4 mm; anthers ovate, 0.7–1 mm. <b>Fruits</b> silicles, straight, ovoid-oblong, (2.5–)3–5.5(–7) × 1.7–2.7(–3) mm; valves glabrous; ovules 36–62 per ovary; style (0.5–)1–2.2(–2.5) mm. <b>Seeds</b> biseriate, reddish brown, ovoid, 0.7–1 mm (0.5–0.6 mm diam.), colliculate. <b>2n</b> = 16, 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Lakeshores, marshes, ponds, streams
|distribution=Que.;Maine;N.Y.;Europe;Asia.
|introduced=true
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Rorippa amphibia
|authority=(Linnaeus) Besser
|rank=species
|parent rank=genus
|synonyms=Armoracia amphibia;Brachiolobos amphibius;Cochlearia amphibia;Myagrum amphibium;Nasturtium amphibium;Radicula amphibia
|basionyms=Sisymbrium amphibium
|family=Brassicaceae
|phenology=Flowering Jun–Aug.
|habitat=Lakeshores, marshes, ponds, streams
|distribution=Que.;Maine;N.Y.;Europe;Asia.
|introduced=true
|reference=None
|publication title=Enum. Pl.,
|publication year=1821
|special status=Weedy;Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V7/V7_769.xml
|tribe=Brassicaceae tribe Cardamineae
|genus=Rorippa
|species=Rorippa amphibia
}}<!--

-->[[Category:Treatment]][[Category:Rorippa]]