View source for Draba micropetala

{{Treatment/ID
|accepted_name=Draba micropetala
|accepted_authority=Hooker in W. E. Parry
|publications={{Treatment/Publication
|title=in W. E. Parry, App. Parry J. Sec. Voy.,
|place=385. 1825
|year=1825
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Draba alpina var. micropetala
|authority=Durand
}}{{Treatment/ID/Synonym
|name=Draba oblongata subsp. minuta
|authority=V. V. Petrovsky
}}{{Treatment/ID/Synonym
|name=Draba pauciflora var. micropetala
|authority=(Hooker) O. E. Schulz
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba micropetala
|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 micropetala]]</div></div>
|volume=Volume 7
|mention_page=page 285, 287, 320, 324, 326
|treatment_page=page 319
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; caudex branched (with persistent leaf remains); scapose. <b>Stems</b> unbranched, (0.05–)0.15–0.7(–1.1) dm, pubescent throughout, sometimes sparsely so distally, trichomes stalked, 2–4-rayed, and simple, 0.05–0.6 mm. <b>Basal</b> leaves (not imbricate); rosulate; petiolate; petiole (base thickened), margin ciliate, (trichomes coarse, simple and 2-rayed, 0.3–1.3 mm); blade broadly oblanceolate to broadly obovate, 0.6–2 cm × 4–12 mm, margins entire, (apex obtuse to rounded, trichomes multibranched, subcruciform), surfaces pubescent abaxially with stalked, 2–4-rayed and, rarely, simple trichomes, 0.1–0.6 mm, adaxially glabrous or with mostly simple trichomes. <b>Cauline</b> leaves 0. <b>Racemes</b> 2–7(–10)-flowered, ebracteate, often elongated in fruit; rachis often flexuous, pubescent as stem. <b>Fruiting</b> pedicels divaricate to ascending, straight, 1–3(–4) mm, pubescent as stem. <b>Flowers</b>: sepals oblong, 1.8–2.5 mm, pubescent, (trichomes simple, with short-stalked, 2-rayed ones); petals pale yellow, narrowly spatulate or oblanceolate, 2–3 × (0.7–)1–1.5 mm; anthers ovate, 0.3–0.4 mm. <b>Fruits</b> elliptic-ovate, plane, slightly flattened, 5–10 × 2–3.2 mm; valves often densely pubescent, trichomes simple and spurred, 0.1–0.5 mm; ovules (16–)18–28 per ovary; style 0.05–0.3 mm (stigma about as wide as style). <b>Seeds</b> oblong, 1–1.1 × 0.5–0.6 mm. <b>2n</b> = 48.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Jul.
|habitat=Meadows, mesic tundra, swales, gravelly soils
|elevation=0-900 m
|distribution=Greenland;N.W.T.;Nunavut;Alaska;Europe (Norway [Spitsbergen]);e Asia (Russian Far East;Siberia).
|discussion=<p>Draba micropetala, which was not listed by C. L. Hitchcock (1941) or R. C. Rollins (1993), is frequently confused with the closely related tetraploid (2n = 32) D. pauciflora. It is distinguished from the latter by having elongated (versus congested) fruiting racemes, narrower [2–3.2 versus (3–)3.5–5 mm] and elliptic-ovate (versus obovate) fruits, more [(16–)18–28 versus 8–16(–20)] seeds per fruit, and obtuse to rounded (versus subacute to acute) leaf apices with multibranched, subcruciform (versus simple and/or 2-branched) trichomes.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba micropetala
|author=
|authority=Hooker in W. E. Parry
|rank=species
|parent rank=genus
|synonyms=Draba alpina var. micropetala;Draba oblongata subsp. minuta;Draba pauciflora var. micropetala
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Jul.
|habitat=Meadows, mesic tundra, swales, gravelly soils
|elevation=0-900 m
|distribution=Greenland;N.W.T.;Nunavut;Alaska;Europe (Norway [Spitsbergen]);e Asia (Russian Far East;Siberia).
|reference=None
|publication title=in W. E. Parry, App. Parry J. Sec. Voy.,
|publication year=1825
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V7/V7_428.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba micropetala
}}<!--

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