View source for Erysimum asperum

{{Treatment/ID
|accepted_name=Erysimum asperum
|accepted_authority=(Nuttall) de Candolle
|publications={{Treatment/Publication
|title=Syst. Nat.
|place=2: 505. 1821
|year=1821
}}
|basionyms={{Treatment/ID/Synonym
|name=Cheiranthus asper
|authority=Nuttall
}}
|synonyms={{Treatment/ID/Synonym
|name=Cheirinia aspera
|authority=(Nuttall) Rydberg
}} {{Treatment/ID/Synonym
|name=Erysimum asperum var. dolichocarpum
|authority=O. E. Schulz
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Erysimeae;Erysimum;Erysimum asperum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Erysimeae]]</div><div class="higher-taxon"><small>genus</small>[[Erysimum]]</div><div class="higher-taxon"><small>species</small>[[Erysimum asperum]]</div></div>
|volume=Volume 7
|mention_page=page 535
|treatment_page=page 537
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Biennials.</b> Trichomes of leaves 2- or 3-rayed. <b>Stems</b> erect, unbranched or branched distally, (0.6–)1.2–6.5(–8) dm. <b>Basal</b> leaves (often withered by fruiting); blade oblanceolate, 2–10 cm × (0.2–)0.5–1.5(–2.4) mm, base attenuate, margins dentate, apex acute. <b>Cauline</b> leaves (distal) sessile; blade margins entire or denticulate. <b>Racemes</b> considerably elongated in fruit. <b>Fruiting</b> pedicels horizontal to divaricate, slender, narrower than fruit, 5–16(–25) mm. <b>Flowers</b>: sepals oblong to linear-oblong, 8–12 mm, lateral pair slightly saccate basally; petals yellow, obovate to suborbicular, 13–22 × 4–9 mm, claw 8–15 mm, apex rounded; median filaments 8–14 mm; anthers linear, 2.5–4 mm. <b>Fruits</b> widely spreading or divaricate, narrowly linear, usually straight, rarely curved upward, not torulose, (3–)5–12(–14) cm × 1.2–2.7 mm, 4-angled, strongly (longitudinally) 4-striped; valves with prominent midvein and replum, densely pubescent outside, trichomes 2-rayed between midvein and replum, glabrous inside; ovules 72–120 per ovary; style cylindrical, slender, 1–4 mm, sparsely pubescent; stigma slightly 2-lobed, lobes as long as wide. <b>Seeds</b> ovoid, (1–)1.3–2.3 × 0.7–1.2 mm; usually not winged, rarely winged distally. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun(-Aug).
|habitat=Prairies, sand dunes, roadsides, bluffs, sandhills along stream banks, knolls, open plains
|elevation=200-2000 m
|distribution=Alta.;Man.;Sask.;Ark.;Colo.;Ill.;Kans.;Minn.;Mont.;Nebr.;N.Mex.;N.Dak.;Okla.;S.Dak.;Tex.;Wyo.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Erysimum asperum
|author=
|authority=(Nuttall) de Candolle
|rank=species
|parent rank=genus
|synonyms=Cheirinia aspera;Erysimum asperum var. dolichocarpum
|basionyms=Cheiranthus asper
|family=Brassicaceae
|phenology=Flowering Apr–Jun(-Aug).
|habitat=Prairies, sand dunes, roadsides, bluffs, sandhills along stream banks, knolls, open plains
|elevation=200-2000 m
|distribution=Alta.;Man.;Sask.;Ark.;Colo.;Ill.;Kans.;Minn.;Mont.;Nebr.;N.Mex.;N.Dak.;Okla.;S.Dak.;Tex.;Wyo.
|reference=None
|publication title=Syst. Nat.
|publication year=1821
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_848.xml
|tribe=Brassicaceae tribe Erysimeae
|genus=Erysimum
|species=Erysimum asperum
}}<!--

-->[[Category:Treatment]][[Category:Erysimum]]