View source for Lepidium perfoliatum

{{Treatment/ID
|accepted_name=Lepidium perfoliatum
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 643. 1753
|year=1753
}}
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Nasturtium perfoliatum
|authority=(Linnaeus) Besser
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Lepidieae;Lepidium;Lepidium perfoliatum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Lepidieae]]</div><div class="higher-taxon"><small>genus</small>[[Lepidium]]</div><div class="higher-taxon"><small>species</small>[[Lepidium perfoliatum]]</div></div>
|volume=Volume 7
|mention_page=page 571
|treatment_page=page 590
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials; (glaucous), glabrous or sparsely pubescent proximally. <b>Stems</b> simple from base, erect, branched distally, (0.7–)1.5–4.3(–5.6) dm. <b>Basal</b> leaves rosulate; petiole (0.5–)1–2(–4) cm; blade 2- or 3-pinnatifid or pinnatisect (lobes linear to oblong), (1–)3–8(–15) cm, margins entire. <b>Cauline</b> leaves sessile; blade ovate to cordate or suborbicular, (0.5–)1–3(–4) cm × (5–)10–25(–35) mm, base deeply cordate-amplexicaul, not auriculate, margins entire. <b>Racemes</b> considerably elongated in fruit; rachis glabrous. <b>Fruiting</b> pedicels divaricate-ascending to horizontal, straight, (terete), 3–6(–7) × 0.2–0.3 mm, glabrous. <b>Flowers</b>: sepals oblong, 0.8–1(–1.3) × 0.5–0.8 mm; petals pale yellow, narrowly spatulate, 1–1.5(–1.9) × 0.2–0.5 mm, claw 0.5–1 mm; stamens 6; filaments 0.6–0.9 mm, (glabrous); anthers 0.1–0.2 mm. <b>Fruits</b> orbicular to rhombic or broadly obovate, 3–4.5(–5) × 3–4.1 mm, apically winged, apical notch 0.1–0.3 mm deep; valves thin, smooth, not or obscurely veined, glabrous; style 0.1–0.4 mm, subequaling or slightly exserted beyond apical notch. <b>Seeds</b> (dark brown), ovate, 1.6–2(–2.3) × 1.2–1.4 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Jun.
|habitat=Waste places, dry sandy slopes, pinyon-juniper woodlands, sagebrush flats, open deserts, roadsides, pastures, meadows, open grasslands, alkaline flats and sinks, fields, disturbed sites
|elevation=0-2500 m
|distribution=Alta.;B.C.;Man.;Ont.;Sask.;Ariz.;Ark.;Calif.;Colo.;Conn.;Ga.;Idaho;Ind.;Iowa;Kans.;Maine;Mass.;Mich.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;S.Dak.;Tenn.;Utah;Wash.;Wis.;Wyo.;Europe;Asia;n Africa;introduced also in Mexico (Baja California);South America (Argentina);Australia.
|introduced=true
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Lepidium perfoliatum
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Nasturtium perfoliatum
|basionyms=
|family=Brassicaceae
|phenology=Flowering Mar–Jun.
|habitat=Waste places, dry sandy slopes, pinyon-juniper woodlands, sagebrush flats, open deserts, roadsides, pastures, meadows, open grasslands, alkaline flats and sinks, fields, disturbed sites
|elevation=0-2500 m
|distribution=Alta.;B.C.;Man.;Ont.;Sask.;Ariz.;Ark.;Calif.;Colo.;Conn.;Ga.;Idaho;Ind.;Iowa;Kans.;Maine;Mass.;Mich.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;S.Dak.;Tenn.;Utah;Wash.;Wis.;Wyo.;Europe;Asia;n Africa;introduced also in Mexico (Baja California);South America (Argentina);Australia.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Weedy;Introduced;Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_957.xml
|tribe=Brassicaceae tribe Lepidieae
|genus=Lepidium
|species=Lepidium perfoliatum
}}<!--

-->[[Category:Treatment]][[Category:Lepidium]]