View source for Draba stenopetala

{{Treatment/ID
|accepted_name=Draba stenopetala
|accepted_authority=Trautvetter
|publications={{Treatment/Publication
|title=Trudy Imp. S.-Petersburgsk. Bot. Sada
|place=6: 11. 1879
|year=1879
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Draba stenopetala var. purpurea
|authority=Hultén
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba stenopetala
|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 stenopetala]]</div></div>
|volume=Volume 7
|mention_page=page 285
|treatment_page=page 341
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (pulvinate); caudex branched (covered with persistent leaves, branches sometimes terminating in sterile rosettes); scapose. <b>Stems</b> unbranched, (0.02–)0.07–0.2(–0.3) dm, pubescent throughout, trichomes simple and short-stalked, 2–5-rayed, 0.1–0.5 mm, (sometimes simple ones very sparse). <b>Basal</b> leaves (densely imbricate); rosulate; petiolate; petiole base and margin ciliate, (trichomes simple and 2-rayed, 0.2–0.5 mm); blade obovate to oblong-spatulate, 0.2–0.6(–0.8) cm × 1–2(–3) mm, margins entire, surfaces often pubescent with simple and stalked, 2–5-rayed trichomes, 0.2–0.9 mm, sometimes glabrous and trichomes on margins only. <b>Cauline</b> leaves 0. <b>Racemes</b> 2–5-flowered, ebracteate, not or slightly elongated in fruit; rachis slightly flexuous, pubescent as stem. <b>Fruiting</b> pedicels divaricate, straight, 2–5(–7) mm, pubescent as stem. <b>Flowers</b>: sepals (spreading or reflexed), oblong, 2–3.5 mm, pubescent, (trichomes simple and 2-rayed); petals yellow or purple, linear, 2.5–5 × 0.3–0.7 mm; anthers ovate, 0.3–0.4 mm. <b>Fruits</b> suborbicular, plane, inflated basally, flattened distally, 3–5 × 3–4 mm; valves glabrous or puberulent, trichomes simple, 0.02–0.3 mm; ovules 4–10 per ovary; style 0.2–0.6 mm. <b>Seeds</b> ovoid, 1–1.3 × 0.8–1 mm. <b>2n</b> = 24, 64.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Rock outcrops, talus, rocky ridges, alpine tundra
|elevation=100-1900 m
|distribution=Yukon;Alaska;e Asia (Russian Far East).
|discussion=<p>Different chromosome counts for <i>Draba stenopetala</i> were reported as 2n = 24 from North America and 2n = 64 from the Russian Far East (S. I. Warwick and I. A. Al-Shehbaz 2006). It is unlikely that a single species is involved, and further work is needed to verify the counts from North America.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba stenopetala
|author=
|authority=Trautvetter
|rank=species
|parent rank=genus
|synonyms=Draba stenopetala var. purpurea
|basionyms=
|family=Brassicaceae
|phenology=Flowering May–Jul.
|habitat=Rock outcrops, talus, rocky ridges, alpine tundra
|elevation=100-1900 m
|distribution=Yukon;Alaska;e Asia (Russian Far East).
|reference=None
|publication title=Trudy Imp. S.-Petersburgsk. Bot. Sada
|publication year=1879
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V7/V7_475.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba stenopetala
}}<!--

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