View source for Descurainia longepedicellata

{{Treatment/ID
|accepted_name=Descurainia longepedicellata
|accepted_authority=(E. Fournier) O. E. Schulz
|publications={{Treatment/Publication
|title=in H. G. A. Engler, Pflanzenr.
|place=86[IV,105]: 324. 1924
|year=1924
}}
|basionyms={{Treatment/ID/Basionym
|name=Sisymbrium longepedicellatum
|authority=E. Fournier
|rank=species
|publication_title=Recherches Anat. Taxon. Fam. Crucifèr.,
|publication_place=59. 1865
}}
|synonyms={{Treatment/ID/Synonym
|name=Descurainia brachycarpa var. eglandulosa
|authority=(Thellung) O. E. Schulz
|rank=variety
}} {{Treatment/ID/Synonym
|name=Descurainia incisa subsp. filipes
|authority=(A. Gray) Rollins
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Descurainia incisa var. filipes
|authority=(A. Gray) N. H. Holmgren
|rank=variety
}} {{Treatment/ID/Synonym
|name=Descurainia longepedicellata var. glandulosa
|authority=O. E. Schulz
|rank=variety
}} {{Treatment/ID/Synonym
|name=Descurainia pinnata subsp. filipes
|authority=(A. Gray) Detling
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Descurainia pinnata var. filipes
|authority=(A. Gray) M. Peck
|rank=variety
}} {{Treatment/ID/Synonym
|name=Descurainia rydbergii var. eglandulosa
|authority=O. E. Schulz
|rank=variety
}} {{Treatment/ID/Synonym
|name=Hesperis longepedicellata
|authority=(A. Gray) A. Heller
|rank=species
}} {{Treatment/ID/Synonym
|name=Sisymbrium brachycarpum var. filipes
|authority=(A. Gray) J. F. Macbride
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sisymbrium incisum var. filipes
|authority=A. Gray
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sisymbrium incisum var. xerophilum
|authority=E. Fournier
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sisymbrium longepedicellatum var. glandulosum
|authority=(O. E. Schulz) H. St. John
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sophia filipes
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Sophia glandifera
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Sophia gracilis
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Sophia longepedicellata
|authority=
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Descurainieae;Descurainia;Descurainia longepedicellata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Descurainieae]]</div><div class="higher-taxon"><small>genus</small>[[Descurainia]]</div><div class="higher-taxon"><small>species</small>[[Descurainia longepedicellata]]</div></div>
|volume=Volume 7
|mention_page=page 520, 525
|treatment_page=page 524
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Annuals; usually eglandular, rarely glandular; moderately to sparsely pubescent, often glabrous distally, not canescent, trichomes dendritic. <b>Stems</b> erect, unbranched or branched proximally, often branched distally, (1.5–)3–6.2(–8.5) dm. <b>Basal</b> leaves: petiole 0.4–3.5 cm; blade pinnate, ovate to oblanceolate in outline, 1.5–7 cm, lateral lobes linear or oblong, margins entire or dentate to incised. <b>Cauline</b> leaves sessile or shortly petiolate; blade smaller distally, lobes linear to filiform, margins entire, surfaces usually glabrous, rarely pubescent. <b>Racemes</b> considerably elongated in fruit. <b>Fruiting</b> pedicels horizontal to divaricate, straight, (8–)10–15(–20) mm. <b>Flowers</b>: sepals ascending, yellow, oblong, 1.5–2 mm, glabrous; petals narrowly oblanceolate, 1.7–2.6 cm × 0.5–1 mm; median filaments 1.5–2 mm; anthers 0.3–0.4 mm. <b>Fruits</b> erect, linear, not torulose, (9–)12–17 × 0.8–1.1 mm, (straight or slightly curved inward); valves each with obscure midvein; septum not veined; ovules 18–32 per ovary; style 0.1–0.2 mm, glabrous. <b>Seeds</b> uniseriate, reddish brown, oblong, 1–1.3 × 0.6–0.7 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jul.
|habitat=Sandy plains and banks, dry washes, open hillsides, sagebrush and juniper or pine communities, grasslands
|elevation=200-2100 m
|distribution=B.C.;Ariz.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>L. E. Detling (1939) treated <i>Descurainia longepedicellata</i> as <i></i>subsp.<i> filipes</i> of <i>D. pinnata</i>, whereas R. C. Rollins (1993) and N. H. Holmgren (2005b) treated it as a subspecies and variety, respectively, of <i>D. incisa</i>. Molecular data, both nuclear and plastidic (B. E. Goodson 2007), place the three taxa in different, well-supported clades.</p><!--
--><p>R. C. Rollins (1993) and N. H. Holmgren (2005b) reported 2n = 28 and 42 for <i>Descurainia longepedicellata</i> (as <i>D. pinnata</i> var. filipes), but these counts are not vouchered. Rollins indicated that the taxon range extends into California and New Mexico; we have not seen material from those states.</p><!--
--><p><i>Descurainia longepedicellata</i> resembles <i>D. incisa </i>subsp.<i> paysonii</i> in having long fruiting pedicels and linear leaf lobes with entire margins. The latter is easily distinguished by being canescent (versus not canescent) and having fruits strongly curved inward (versus straight). Because the two taxa are not closely related (B. E. Goodson 2007), the similarities in fruiting pedicels and distalmost leaf segments represent convergence.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Descurainia longepedicellata
|authority=(E. Fournier) O. E. Schulz
|rank=species
|parent rank=genus
|synonyms=Descurainia brachycarpa var. eglandulosa;Descurainia incisa subsp. filipes;Descurainia incisa var. filipes;Descurainia longepedicellata var. glandulosa;Descurainia pinnata subsp. filipes;Descurainia pinnata var. filipes;Descurainia rydbergii var. eglandulosa;Hesperis longepedicellata;Sisymbrium brachycarpum var. filipes;Sisymbrium incisum var. filipes;Sisymbrium incisum var. xerophilum;Sisymbrium longepedicellatum var. glandulosum;Sophia filipes;Sophia glandifera;Sophia gracilis;Sophia longepedicellata
|basionyms=Sisymbrium longepedicellatum
|family=Brassicaceae
|phenology=Flowering Apr–Jul.
|habitat=Sandy plains and banks, dry washes, open hillsides, sagebrush and juniper or pine communities, grasslands
|elevation=200-2100 m
|distribution=B.C.;Ariz.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=in H. G. A. Engler, Pflanzenr.
|publication year=1924
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_826.xml
|tribe=Brassicaceae tribe Descurainieae
|genus=Descurainia
|species=Descurainia longepedicellata
}}<!--

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