View source for Draba yukonensis

{{Treatment/ID
|accepted_name=Draba yukonensis
|accepted_authority=A. E. Porsild
|publications={{Treatment/Publication
|title=Publ. Bot. (Ottawa)
|place=4: 37, plate 7. 1975
|year=1975
}}
|basionyms=
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba yukonensis
|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 yukonensis]]</div></div>
|volume=Volume 7
|mention_page=page 274
|treatment_page=page 346
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (short-lived); caudex simple or branched (with persistent leaf remains); not scapose. <b>Stems</b> branched, 0.4–2 dm, pubescent throughout, trichomes simple, 0.3–1.2 mm, and 2–6-rayed, 0.05–0.6 mm. <b>Basal</b> leaves rosulate; subsessile; blade oblanceolate to narrowly so, 0.3–1 cm × 0.5–2 mm, margins entire, (ciliate, trichomes simple, to 1.3 mm), surfaces pubescent, abaxially with (rigid), simple and 2-rayed trichomes, 0.4–1.2 mm, sometimes with short-stalked, 3–6-rayed ones, 0.1–0.3 mm, adaxially with simple trichomes. <b>Cauline</b> leaves 1–3; sessile; blade ovate to oblong, margins entire, surfaces pubescent as basal. <b>Racemes</b> 5–20-flowered, ebracteate, considerably elongated in fruit; rachis not flexuous, pubescent as stem. <b>Fruiting</b> pedicels erect to ascending, straight, 0.5–3 mm, pubescent as stem. <b>Flowers</b>: sepals ovate, 1.2–1.6 mm, pubescent, (trichomes simple and 2–4-rayed); petals white, spatulate, 1.5–2 × 0.7–0.8 mm; anthers ovate, ca. 0.2 mm. <b>Fruits</b> ovoid to oblong, plane, not flattened, 2–5 × 1.5–2 mm; valves pubescent, trichomes short-stalked, 4- or 5-rayed, 0.05–0.3 mm; ovules 36–52 per ovary; style 0.1–0.3 mm. <b>Seeds</b> oblong, 0.6–0.8 × 0.3–0.4 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering late May–Jun.
|habitat=Open stony ridges on ancient beach in grassy areas and aspen stands
|elevation=ca. 600 m
|distribution=Yukon.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba yukonensis</i> is known only from Kluane National Park, southwestern Yukon Territory.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Draba yukonensis
|authority=A. E. Porsild
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Brassicaceae
|phenology=Flowering late May–Jun.
|habitat=Open stony ridges on ancient beach in grassy areas and aspen stands
|elevation=ca. 600 m
|distribution=Yukon.
|reference=None
|publication title=Publ. Bot. (Ottawa)
|publication year=1975
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_486.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba yukonensis
}}<!--

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