View source for Draba trichocarpa

{{Treatment/ID
|accepted_name=Draba trichocarpa
|accepted_authority=Rollins
|publications={{Treatment/Publication
|title=Contr. Gray Herb.
|place=214: 4. 1984
|year=1984
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba trichocarpa
|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 trichocarpa]]</div></div>
|volume=Volume 7
|mention_page=page 279, 287
|treatment_page=page 344
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (cespitose, densely pulvinate); caudex branched (covered with persistent leaves, branches sometimes terminating in sterile rosettes); scapose. <b>Stems</b> unbranched, 0.07–0.35 dm, pubescent throughout, trichomes (soft), stalked, subdendritic, (somewhat crisped), 0.1–0.5 mm, (simple ones absent). <b>Basal</b> leaves (densely imbricate); rosulate; sessile; blade oblong to obovate, 0.2–0.4 cm × 0.5–1.5 mm, margins entire, (ciliate, trichomes simple and branched, subdendritic, or spurred, 0.3–0.8 mm), surfaces sparsely pubescent, abaxially with stalked, 4–6-rayed stellate trichomes, 0.1–0.4 mm, adaxially with simple and 4–6-rayed trichomes, mainly on distal 1/2. <b>Cauline</b> leaves 0 (or 1); sessile; blade similar to basal. <b>Racemes</b> 2–9-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, pubescent as stem. <b>Fruiting</b> pedicels divaricate-ascending to ascending, straight, 1–4.5 mm, pubescent as stem. <b>Flowers</b>: sepals ovate, 2–3 mm, pubescent, (trichomes short-stalked); petal color unknown, broadly obovate, 2–4 × 2–2.5 mm; anthers oblong, 0.5–0.6 mm. <b>Fruits</b> ovoid, plane, slightly inflated basally, flattened distally, 2–6 × 2–3.5 mm; valves densely pubescent, trichomes 4-rayed, 0.1–0.4 mm, (often some rays spurred or branched); ovules 4–10 per ovary; style 0.3–0.7 mm. <b>Seeds</b> oblong, 1.4–2 × 0.8–1.2 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Jul.
|habitat=Gravelly metamorphic soil at ecotone between sagebrush steppe and open conifer forests
|elevation=ca. 2000 m
|distribution=Idaho.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba trichocarpa</i> is an apomictic polyploid that appears to be closely related to <i>D. novolympica</i>. It is readily distinguished from that species by the primarily dendritic trichomes (and absence of simple trichomes) on the stems, pedicels, and fruits. <i>Draba trichocarpa</i> is known from the Stanley Basin of central Idaho (Custer County).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba trichocarpa
|authority=Rollins
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Jul.
|habitat=Gravelly metamorphic soil at ecotone between sagebrush steppe and open conifer forests
|elevation=ca. 2000 m
|distribution=Idaho.
|reference=None
|publication title=Contr. Gray Herb.
|publication year=1984
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_481.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba trichocarpa
}}<!--

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