View source for Descurainia pinnata subsp. brachycarpa

{{Treatment/ID
|accepted_name=Descurainia pinnata subsp. brachycarpa
|accepted_authority=(Richardson) Detling
|publications={{Treatment/Publication
|title=Amer. Midl. Naturalist
|place=22: 509. 1939
|year=1939
}}
|basionyms={{Treatment/ID/Synonym
|name=Sisymbrium brachycarpum
|authority=Richardson
}}
|synonyms={{Treatment/ID/Synonym
|name=Descurainia intermedia
|authority=(Rydberg) Daniels
}} {{Treatment/ID/Synonym
|name=Descurainia magna
|authority=(Rydberg) F. C. Gates
}} {{Treatment/ID/Synonym
|name=Descurainia pinnata var. brachycarpa
|authority=(Richardson) Fernald
}} {{Treatment/ID/Synonym
|name=Descurainia pinnata subsp. intermedia
|authority=(Rydberg) Detling
}} {{Treatment/ID/Synonym
|name=Descurainia pinnata var. intermedia
|authority=(Rydberg) C. L. Hitchcock
}} {{Treatment/ID/Synonym
|name=Descurainia ramosissima
|authority=Nuttall
}} {{Treatment/ID/Synonym
|name=Hesperis brachycarpa
|authority=(Rydberg) Garrett
}} {{Treatment/ID/Synonym
|name=Sisymbrium brachycarpum var. intermedium
|authority=(Rydberg) J. F. Macbride
}} {{Treatment/ID/Synonym
|name=Sisymbrium canescens var. brachycarpum
|authority=(Richardson) S. Watson
}} {{Treatment/ID/Synonym
|name=Sisymbrium intermedium
|authority=(Richardson) Rydberg
}} {{Treatment/ID/Synonym
|name=Sisymbrium multifidum subsp. brachycarpum
|authority=(Richardson) Thellung
}} {{Treatment/ID/Synonym
|name=Sisymbrium pinnatum var. brachycarpum
|authority=(Richardson) Jepson
}} {{Treatment/ID/Synonym
|name=Sophia brachycarpa
|authority=(Walter) Howell
}} {{Treatment/ID/Synonym
|name=Sophia intermedia
|authority=unknown
}} {{Treatment/ID/Synonym
|name=Sophia magna
|authority=unknown
}} {{Treatment/ID/Synonym
|name=Sophia pinnata var. brachycarpa
|authority=(Richardson) Farwell
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Descurainieae;Descurainia;Descurainia pinnata;Descurainia pinnata subsp. brachycarpa
|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 pinnata]]</div><div class="higher-taxon"><small>subspecies</small>[[Descurainia pinnata subsp. brachycarpa]]</div></div>
|volume=Volume 7
|mention_page=page 525, 528
|treatment_page=page 527
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>usually glandular, rarely eglandular, usually not canescent. <b>Stems</b> unbranched basally, branched distally. <b>Racemes</b>: rachis sparsely to densely pubescent, often glandular. <b>Fruiting</b> pedicels divaricate to ascending, forming 20–60(–80)º angle, (7–)10–18(–23) mm. <b>Flowers</b>: sepals yellow, 1.5–2.6 mm; petals (1.7–)2–3 × 0.6–1 mm. <b>2n</b> = 14, 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Jul.
|habitat=Roadsides, sagebrush and pinyon-juniper communities, disturbed sites, sandy fields, dry washes, limestone ledges, foothills, canyon margins, gravel washes, dry slopes, cliffs, streamsides, railroad tracks and embankments, prairies, sandy grounds
|elevation=100-2100 m
|distribution=Alta.;B.C.;Man.;N.W.T.;Nunavut;Ont.;Que.;Sask.;Ark.;Calif.;Colo.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.Y.;N.Dak.;Ohio;Okla.;Oreg.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;Wis.;Wyo.
|discussion=<p>Except for having numerous instead of one or few stems from the base, <i>Descurainia</i> ramosissima is indistinguishable from <i>D. pinnata </i>subsp.<i> brachycarpa</i> in every aspect of indumentum, leaf morphology, flower size, seed size and arrangement, and fruit size and orientation. Plants of the type collections (Rollins et al. 8349, holotype GH, isotypes GH, MO) are infected with white rust, a fungus disease rarely encountered elsewhere in North American <i>Descurainia</i>. It is not known if this unusual branching is inherited or disease-related, but it should not be used as the main reason for recognizing a species separate from <i>D. brachycarpa</i>.</p><!--
--><p>Although <i></i>subsp.<i> brachycarpa</i> is almost always glandular in the inflorescence, both glandular and eglandular forms are found in some populations. Cases in point are J. & H. Massey 1931 and Dunn 2 (both at TEX) that were collected from Cleveland and Caddo counties, Oklahoma, respectively.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Descurainia pinnata subsp. brachycarpa
|author=
|authority=(Richardson) Detling
|rank=subspecies
|parent rank=species
|synonyms=Descurainia intermedia;Descurainia magna;Descurainia pinnata var. brachycarpa;Descurainia pinnata subsp. intermedia;Descurainia pinnata var. intermedia;Descurainia ramosissima;Hesperis brachycarpa;Sisymbrium brachycarpum var. intermedium;Sisymbrium canescens var. brachycarpum;Sisymbrium intermedium;Sisymbrium multifidum subsp. brachycarpum;Sisymbrium pinnatum var. brachycarpum;Sophia brachycarpa;Sophia intermedia;Sophia magna;Sophia pinnata var. brachycarpa
|basionyms=Sisymbrium brachycarpum
|family=Brassicaceae
|phenology=Flowering Mar–Jul.
|habitat=Roadsides, sagebrush and pinyon-juniper communities, disturbed sites, sandy fields, dry washes, limestone ledges, foothills, canyon margins, gravel washes, dry slopes, cliffs, streamsides, railroad tracks and embankments, prairies, sandy grounds
|elevation=100-2100 m
|distribution=Alta.;B.C.;Man.;N.W.T.;Nunavut;Ont.;Que.;Sask.;Ark.;Calif.;Colo.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.Y.;N.Dak.;Ohio;Okla.;Oreg.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;Wis.;Wyo.
|reference=None
|publication title=Amer. Midl. Naturalist
|publication year=1939
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_832.xml
|tribe=Brassicaceae tribe Descurainieae
|genus=Descurainia
|species=Descurainia pinnata
|subspecies=Descurainia pinnata subsp. brachycarpa
}}<!--

-->[[Category:Treatment]][[Category:Descurainia pinnata]]