View source for Draba cusickii

{{Treatment/ID
|accepted_name=Draba cusickii
|accepted_authority=B. L. Robinson ex O. E. Schulz in H. G. A. Engler
|publications={{Treatment/Publication
|title=in H. G. A. Engler, Pflanzenr.
|place=89[IV,105]: 105. 1927
|year=1927
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Draba sphaeroides var. cusickii
|authority=(B. L. Robinson ex O. E. Schulz) C. L. Hitchcock
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba cusickii
|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 cusickii]]</div></div>
|volume=Volume 7
|mention_page=page 284, 305, 329, 342
|treatment_page=page 304
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (loosely cespitose); caudex branched (with few, persistent leaf remains); scapose. <b>Stems</b> unbranched, 0.3–1.2 dm, pubescent throughout, trichomes (2–)4-rayed, 0.05–0.5(–0.6) mm. <b>Basal</b> leaves rosulate; shortly petiolate; petiole base ciliate (margin not ciliate, trichomes 2-rayed, 0.3–0.6 mm); blade oblanceolate to obovate, 0.4–1.2 cm × 2–5 mm, margins entire or, rarely, denticulate, surfaces pubescent with stalked, (2–)4-rayed trichomes, 0.15–0.4 mm. <b>Cauline</b> leaves 0. <b>Racemes</b> 10–20(–25)-flowered, ebracteate, considerably elongated in fruit; rachis not flexuous, pubescent as stems proximally. <b>Fruiting</b> pedicels divaricate-ascending, straight (not expanded basally), 4–9 mm, pubescent, trichomes (2–)4-rayed, (0.05–0.25 mm). <b>Flowers</b>: sepals broadly ovate, 2–2.5 mm, pubescent, (trichomes short-stalked, 3- or 4-rayed); petals yellow, obovate to oblanceolate, 3.7–6 × 1.5–2.5 mm; anthers ovate, 0.5–0.6 mm. <b>Fruits</b> lanceolate to broadly ovate, plane, flattened, 6–9 × 2–4.5 mm; valves pubescent, trichomes short-stalked, (2–)4-rayed, 0.05–0.25 mm; ovules 10–18 per ovary; style 0.4 0.8(–1) mm. <b>Seeds</b> oblong, 1.2–1.5 × 0.7–0.8 mm. <b>2n</b> = 26.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Jul.
|habitat=Basaltic outcrops, talus, rocky soil
|elevation=2000-2700 m
|distribution=Oreg.
|discussion=<p><i>Draba cusickii</i> was divided by R. C. Rollins (1993) into two varieties with significantly different morphologies and chromosome numbers. The <i>Nevada</i> endemic var. pedicellata (2n = 20) is here treated as a distinct species following M. D. Windham (2004). <i>Draba cusickii</i> has the same chromosome number as <i>D. sobolifera</i> but is readily distinguished from that species by having 4-rayed (versus simple or 2-rayed) fruit trichomes. <i>Draba cusickii</i> is known from Steens Mountain (Harney County).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba cusickii
|author=
|authority=B. L. Robinson ex O. E. Schulz in H. G. A. Engler
|rank=species
|parent rank=genus
|synonyms=Draba sphaeroides var. cusickii
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Jul.
|habitat=Basaltic outcrops, talus, rocky soil
|elevation=2000-2700 m
|distribution=Oreg.
|reference=None
|publication title=in H. G. A. Engler, Pflanzenr.
|publication year=1927
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V7/V7_398.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba cusickii
}}<!--

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