View source for Draba serpentina

{{Treatment/ID
|accepted_name=Draba serpentina
|accepted_authority=(Tiehm & P. K. Holmgren) Al-Shehbaz & Windham
|publications={{Treatment/Publication
|title=Harvard Pap. Bot.
|place=12: 414. 2007
|year=2007
}}
|basionyms={{Treatment/ID/Basionym
|name=Draba oreibata var. serpentina
|authority=Tiehm & P. K. Holmgren
|rank=variety
|publication_title=Brittonia
|publication_place=43: 20, fig. 1A–D. 1991
}}
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba serpentina
|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 serpentina]]</div></div>
|volume=Volume 7
|mention_page=page 279, 336
|treatment_page=page 335
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (cespitose); caudex branched (with persistent leaves, branches sometimes terminating in sterile rosettes); scapose. <b>Stems</b> unbranched, 0.3–1.3 dm, glabrous throughout. <b>Basal</b> leaves rosulate; sessile; blade obovate to obovate-oblanceolate, 0.4–1 cm × (2–)2.5–4(–5) mm, margins entire, (ciliate, trichomes simple, 0.2–0.5 mm, apex acute), surfaces glabrous. <b>Cauline</b> leaves 0. <b>Racemes</b> 6–14-flowered, ebracteate, elongated in fruit; rachis not flexuous, glabrous. <b>Fruiting</b> pedicels divaricate-ascending, straight, 5–13 mm, glabrous. <b>Flowers</b>: sepals ovate, 2–3 mm, glabrous; petals white, spatulate to obovate, 5–6.5 × 2–3 mm; anthers ovate to oblong, 0.4–0.5 mm. <b>Fruits</b> lanceolate to narrowly oblong, slightly twisted or plane, flattened, 6–12 × 2–3.5 mm; valves glabrous; ovules 8–16 per ovary; style 0.6–1.8(–2.5) mm. <b>Seeds</b> oblong, 1.1–1.4 × 0.7–0.8 mm. <b>2n</b> = 52.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Rock outcrops, talus, and gravelly soil in mixed conifer and subalpine meadow communities
|elevation=3200-3600 m
|distribution=Nev.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba serpentina</i> has been treated by other authors as a variety or synonym of <i>D. oreibata</i>. As indicated by I. A. Al-Shehbaz and M. D. Windham (2007), the two taxa are morphologically distinct, have different chromosome numbers, and are separated by over 480 kilometers. They are treated herein as separate species. <i>Draba serpentina</i> is known only from the Snake Range (White Pine County) and the Toiyabe Mountains (Lander County) in central <i>Nevada</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba serpentina
|authority=(Tiehm & P. K. Holmgren) Al-Shehbaz & Windham
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Draba oreibata var. serpentina
|family=Brassicaceae
|phenology=Flowering May–Jul.
|habitat=Rock outcrops, talus, and gravelly soil in mixed conifer and subalpine meadow communities
|elevation=3200-3600 m
|distribution=Nev.
|reference=None
|publication title=Harvard Pap. Bot.
|publication year=2007
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_463.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba serpentina
}}<!--

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