View source for Draba arida

{{Treatment/ID
|accepted_name=Draba arida
|accepted_authority=C. L. Hitchcock
|publications={{Treatment/Publication
|title=Revis. Drabas W. N. Amer.,
|place=52, plate 3, fig. 23. 1941
|year=1941
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba arida
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Arabideae]]</div><div class="higher-taxon"><small>genus</small>[[Draba]]</div><div class="higher-taxon"><small>species</small>[[Draba arida]]</div></div>
|volume=Volume 7
|mention_page=page 279, 293
|treatment_page=page 292
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (cespitose); caudex branched (with persistent leaf remains, branches relatively short); not scapose. <b>Stems</b> usually unbranched, (0.3–)0.4–1 dm, pubescent throughout, trichomes simple and 2-rayed, 0.4–1.4 mm, and shorter, 2–4-rayed ones, 0.05–0.3 mm. <b>Basal</b> leaves rosulate; subsessile; petiole not ciliate; blade obovate to spatulate or oblanceolate, 0.6–1.9(–2.4) cm × 2–5(–8) mm, (base ciliate, trichomes simple and 2-rayed), margins entire, surfaces abaxially pubescent with stalked, (2–)4-rayed trichomes, 0.3–0.6 mm, adaxially with simple and stalked, 2-rayed trichomes, 0.3–0.6 mm, and smaller, 3- or 4-rayed ones. <b>Cauline</b> leaves (1 or) 2–5; sessile; blade oblong to oblanceolate or ovate, margins entire, surfaces pubescent as basal. <b>Racemes</b> 12–40-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, pubescent, trichomes simple and 2–4-rayed. <b>Fruiting</b> pedicels horizontal to divaricate-ascending, straight, (3–)4–8 mm, pubescent, trichomes simple and 2–4-rayed (0.1–0.5 mm). <b>Flowers</b>: sepals broadly ovate, 2–2.7 mm, pubescent, (trichomes simple and short-stalked, 2–4-rayed); petals yellow, spatulate to oblanceolate, 3.5–5 × 1.4–2 mm; anthers oblong, 0.4–0.6 mm. <b>Fruits</b> elliptic or ovate to lanceolate, plane, slightly inflated basally, 4–7 × 2.5–3.5 mm; valves pubescent, trichomes simple and stalked, 2–4-rayed, 0.05–0.4 mm; ovules 8–12 per ovary; style 0.5–1.2(–1.4) mm. <b>Seeds</b> ovoid, 1–1.4 × 0.6–0.8 mm. <b>2n</b> = 24.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Rock crevices and gravelly soil in conifer and subalpine shrub communities
|elevation=2100-3400 m
|distribution=Nev.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba arida</i> is a sexually reproducing, diploid member of the <i>D. ventosa</i> complex that may have been involved in the origin of the more widespread apomictic triploids (M. A. Beilstein and M. D. Windham 2003). The species is known from the Monitor, Toiyabe, and Toquima ranges in Lander and Nye counties.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba arida
|authority=C. L. Hitchcock
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Brassicaceae
|phenology=Flowering May–Jul.
|habitat=Rock crevices and gravelly soil in conifer and subalpine shrub communities
|illustrator=Bee F. Gunn
|illustration copyright=Flora of North America Association
|elevation=2100-3400 m
|distribution=Nev.
|reference=None
|publication title=Revis. Drabas W. N. Amer.,
|publication year=1941
|special status=Endemic;Conservation concern
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V7/V7_371.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba arida
}}<!--

-->[[Category:Treatment]][[Category:Draba]]