View source for Draba exunguiculata

{{Treatment/ID
|accepted_name=Draba exunguiculata
|accepted_authority=(O. E. Schulz) C. L. Hitchcock
|publications={{Treatment/Publication
|title=Revis. Drabas W. N. Amer.,
|place=46. 1941
|year=1941
}}
|basionyms={{Treatment/ID/Basionym
|name=Draba chrysantha var. exunguiculata
|authority=O. E. Schulz
|publication_title=in H. G. A. Engler, Pflanzenr.
|publication_place=89[IV,105]: 194. 1927
}} {{Treatment/ID/Basionym
|name=Draba chrysantha
|authority=S. Watson
|publication_title=
|publication_place=1882
}}
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba exunguiculata
|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 exunguiculata]]</div></div>
|volume=Volume 7
|mention_page=page 275, 307, 310, 346
|treatment_page=page 306
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (densely cespitose); caudex branched (covered with persistent, somewhat thickened, dry petioles); not scapose. <b>Stems</b> unbranched, 0.15–0.7 dm, glabrous throughout or sparsely pubescent, trichomes simple, 0.3–0.9 mm. <b>Basal</b> leaves rosulate; petiolate; petiole ciliate, (trichomes simple, 0.3–1.1 mm); blade linear to linear-oblanceolate, (0.5–)0.8–2(–2.5) cm × 1–3 mm, margins entire, (pubescent as petiole), surfaces abaxially sparsely pubescent with simple and stalked, 2- or 3-rayed trichomes, 0.1–0.4 mm, adaxially glabrous or subapically sparsely pubescent with simple trichomes. <b>Cauline</b> leaves 1–4; sessile; blade linear to linear-oblanceolate, margins entire, surfaces pubescent as basal. <b>Racemes</b> 4–13(–20)-flowered, ebracteate, elongated in fruit; rachis not flexuous, usually glabrous, rarely sparsely pubescent, trichomes simple, to 1 mm. <b>Fruiting</b> pedicels divaricate-ascending, straight or slightly curved upward, 1–6 mm, usually glabrous, rarely with few, simple trichomes. <b>Flowers</b>: sepals ovate, 2–2.5 mm, pubescent, (trichomes simple); petals (erect), yellow, obovate, 2–2.5(–3) × 1.5–2 mm, (not clawed); anthers oblong, 0.6–0.9 mm. <b>Fruits</b> lanceolate to oblong-lanceolate, plane, flattened, 5–13 × 1.5–3 mm; valves glabrous; ovules 20–24 per ovary; style 0.3–1 mm. <b>Seeds</b> ovoid, 1–1.3 × 0.6–0.8 mm. <b>2n</b> = 56 ± 5.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Aug.
|habitat=Open knolls, talus, gravelly alpine slopes, rocky alpine tundra
|elevation=3600-4300 m
|distribution=Colo.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba exunguiculata</i> occupies alpine areas of Clear Creek, El Paso, Grand, and Summit counties in central Colorado. <i>Draba grayana</i> is found in the same general area; both species are apomicts that occasionally grow sympatrically. <i>Draba exunguiculata</i> is easily distinguished from <i>D. grayana</i> by having stems and fruiting pedicels glabrous or sparsely pubescent with simple trichomes (versus moderately to densely pubescent with simple and 2- or 3-rayed trichomes), and by having erect, non-clawed petals, 2–3 mm and slightly longer than sepals (versus flared, clawed petals 3–4.5 mm and nearly twice as long as sepals).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba exunguiculata
|author=
|authority=(O. E. Schulz) C. L. Hitchcock
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Draba chrysantha var. exunguiculata;Draba chrysantha
|family=Brassicaceae
|phenology=Flowering Jul–Aug.
|habitat=Open knolls, talus, gravelly alpine slopes, rocky alpine tundra
|elevation=3600-4300 m
|distribution=Colo.
|reference=None
|publication title=Revis. Drabas W. N. Amer.,
|publication year=1941
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V7/V7_402.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba exunguiculata
}}<!--

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