View source for Lepidium ruderale

{{Treatment/ID
|accepted_name=Lepidium ruderale
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 645. 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=Lepidium texanum
|authority=Buckley
|rank=species
}} {{Treatment/ID/Synonym
|name=Lepidium virginicum subsp. texanum
|authority=(Buckley) Thellung
|rank=subspecies
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Lepidieae;Lepidium;Lepidium ruderale
|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 ruderale]]</div></div>
|volume=Volume 7
|mention_page=page 573
|treatment_page=page 592
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials; (fetid); puberulent (trichomes cylindrical). <b>Stems</b> simple from base, erect ascending, branched (several) distally, (0.5–)1–3.5(–5.5) dm. <b>Basal</b> leaves rosulate; petiole 1–3.2(–5.3) cm; blade (1- or) 2- or 3-pinnatisect (lobes oblong), (1.5–)3–5(–7.2) cm, margins (of lobes) usually entire, rarely dentate. <b>Cauline</b> leaves sessile; blade linear, (0.4–)1–2(–3) cm × 0.5–2.5(–3.5) mm, base cuneate, not auriculate, margins entire. <b>Racemes</b> considerably elongated in fruit; rachis puberulent, trichomes straight, cylindrical. <b>Fruiting</b> pedicels divaricate to horizontal, straight, (terete), (1.5–)2–4(–5) × 0.1–0.15 mm, puberulent. <b>Flowers</b>: sepals oblong, 0.5–0.9(–1) × 0.2–0.4 mm; petals (absent or rudimentary), white, linear, 0.2–0.5 × 0.1 mm, claw absent; stamens 2, median; filaments 0.7–0.8 mm; anthers 0.1–0.2 mm. <b>Fruits</b> elliptic, (1.5–)1.8–2.5(–3) × 1.5–2(–2.3) mm, apically winged, apical notch 0.1–0.2 mm deep; valves thin, smooth, not veined, glabrous; style obsolete or to 0.1 mm, included in apical notch. <b>Seeds</b> oblong to ovate-oblong, 1–1.5 × 0.6–0.8 mm. <b>2n</b> = 16, 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jul.
|habitat=Fields, pastures, waste places, roadsides, gardens
|elevation=0-300 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Calif.;Del.;Fla.;Ind.;La.;Maine;Md.;Mass.;Mich.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Oreg.;Pa.;R.I.;Tenn.;Tex.;Eurasia;introduced also in South America;Australia.
|introduced=true
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Lepidium ruderale
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Lepidium texanum;Lepidium virginicum subsp. texanum
|basionyms=
|family=Brassicaceae
|phenology=Flowering Apr–Jul.
|habitat=Fields, pastures, waste places, roadsides, gardens
|elevation=0-300 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Calif.;Del.;Fla.;Ind.;La.;Maine;Md.;Mass.;Mich.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Oreg.;Pa.;R.I.;Tenn.;Tex.;Eurasia;introduced also in South America;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_960.xml
|tribe=Brassicaceae tribe Lepidieae
|genus=Lepidium
|species=Lepidium ruderale
}}<!--

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