View source for Boechera arcuata

{{Treatment/ID
|accepted_name=Boechera arcuata
|accepted_authority=(Nuttall) Windham & Al-Shehbaz
|publications={{Treatment/Publication
|title=Harvard Pap. Bot.
|place=11: 64. 2006
|year=2006
}}
|basionyms={{Treatment/ID/Basionym
|name=Streptanthus arcuatus
|authority=Nuttall
|rank=species
|publication_title=in J. Torrey and A. Gray, Fl. N. Amer.
|publication_place=1: 77. 1838
}}
|synonyms={{Treatment/ID/Synonym
|name=Arabis holboellii var. arcuata
|authority=(Nuttall) Jepson
|rank=variety
}} {{Treatment/ID/Synonym
|name=Arabis maxima
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis sparsiflora var. arcuata
|authority=(Nuttall) Rollins
|rank=variety
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Boechereae;Boechera;Boechera arcuata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Boechereae]]</div><div class="higher-taxon"><small>genus</small>[[Boechera]]</div><div class="higher-taxon"><small>species</small>[[Boechera arcuata]]</div></div>
|volume=Volume 7
|mention_page=page 364, 367, 369, 404, 407
|treatment_page=page 365
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; usually long-lived; sexual; caudex often woody (well-developed). <b>Stems</b> usually 1 per caudex branch, arising from center of rosette, elevated on woody base or from ground surface, (2–)3–8 dm, densely pubescent proximally, trichomes short-stalked, 2-rayed and simple, to 1 mm, pubescent distally. <b>Basal</b> leaves: blade linear to oblanceolate, 2–7(–12) mm wide, margins usually entire, rarely denticulate, ciliate along petiole, trichomes to 1.5 mm, surfaces densely pubescent, trichomes usually short-stalked, 2–5-rayed (rarely some simple), 0.4–0.8 mm. <b>Cauline</b> leaves: 10–30(–45), often concealing stem proximally; blade auricles 2–5(–6) mm, surfaces of distalmost leaves pubescent. <b>Racemes</b> 12–50(–70)-flowered, usually unbranched. <b>Fruiting</b> pedicels usually divaricate-ascending, rarely horizontal, gently recurved or straight, 8–22 mm, pubescent, trichomes subappressed, 2–4-rayed. <b>Flowers</b> ascending at anthesis; sepals pubescent; petals purple, 9–14 × 2–4 mm, glabrous or sparsely pubescent (trichomes abaxially); pollen ellipsoid. <b>Fruits</b> usually divaricate-ascending, rarely horizontal, not appressed to rachis, not secund, usually curved, edges parallel, (6–)8–13 cm × 1.5–2.2 mm; valves glabrous or trichomes relatively few, scattered; ovules 90–250 per ovary; style 0.01–0.5 mm. <b>Seeds</b> uniseriate or sub-biseriate, 1.5–1.7 × 1–1.2 mm; wing continuous, 0.1–0.2 mm wide.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Jun.
|habitat=Rocky hillsides and cliffs in pine forests and chaparral
|elevation=300-1800 m
|distribution=Calif.
|discussion=<p>Although usually treated as a variety of <i>Arabis</i> (<i>Boechera</i>) sparsiflora (e.g., R. C. Rollins 1993), <i>B. arcuata</i> is easily distinguished from that species by having rachises and fruiting pedicels pubescent with subappressed, 2–4-rayed trichomes and a geographic range limited to southern and western California. By contrast, <i>B. sparsiflora</i> has rachises and fruiting pedicels with spreading, usually simple trichomes (sometimes glabrescent) and an allopatric distribution north and east of the Sierra <i>Nevada</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Boechera arcuata
|authority=(Nuttall) Windham & Al-Shehbaz
|rank=species
|parent rank=genus
|synonyms=Arabis holboellii var. arcuata;Arabis maxima;Arabis sparsiflora var. arcuata
|basionyms=Streptanthus arcuatus
|family=Brassicaceae
|phenology=Flowering Mar–Jun.
|habitat=Rocky hillsides and cliffs in pine forests and chaparral
|elevation=300-1800 m
|distribution=Calif.
|reference=None
|publication title=Harvard Pap. Bot.
|publication year=2006
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_493.xml
|tribe=Brassicaceae tribe Boechereae
|genus=Boechera
|species=Boechera arcuata
}}<!--

-->[[Category:Treatment]][[Category:Boechera]]