View source for Draba norvegica

{{Treatment/ID
|accepted_name=Draba norvegica
|accepted_authority=Gunnerus
|publications={{Treatment/Publication
|title=Fl. Norveg.
|place=2: 106. 1772
|year=1772
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Draba clivicola
|authority=Fernald
|rank=species
}} {{Treatment/ID/Synonym
|name=Draba hirta var. norvegica
|authority=(Gunnerus) Liljeblad
|rank=variety
}} {{Treatment/ID/Synonym
|name=Draba norvegica var. clivicola
|authority=(Fernald) B. Boivin
|rank=variety
}} {{Treatment/ID/Synonym
|name=Draba norvegica var. hebecarpa
|authority=(Lindblom) O. E. Schulz
|rank=variety
}} {{Treatment/ID/Synonym
|name=Draba rupestris
|authority=W. T. Aiton
|rank=species
}} {{Treatment/ID/Synonym
|name=Draba scandinavica var. hebecarpa
|authority=Lindblom
|rank=variety
}} {{Treatment/ID/Synonym
|name=Draba trichella
|authority=Fries
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba norvegica
|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 norvegica]]</div></div>
|volume=Volume 7
|mention_page=page 277, 279, 287, 292, 308, 323
|treatment_page=page 322
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (cespitose); caudex branched (sometimes with persistent leaf remains); often scapose. <b>Stems</b> branched or unbranched, (0.2–)0.4–1.4(–2) dm, pubescent throughout, trichomes simple and 2–4-rayed, 0.2–0.5 mm. <b>Basal</b> leaves rosulate; petiolate; petiole (0–0.5 cm), ciliate throughout; blade oblanceolate to narrowly obovate or narrowly lanceolate, 0.4–2.1 cm × 1.5–7 mm, margins with 1–3 teeth on each side, (ciliate, trichomes simple and 2-rayed, 0.2–0.8 mm), surfaces pubescent abaxially with stalked, (2–)4(–6)-rayed trichomes, 0.1–0.4 mm, adaxially glabrous or pubescent, with simple and stalked, 2-rayed trichomes, 0.1–0.5 mm. <b>Cauline</b> leaves 0–3(–5); sessile; blade ovate to oblong, margins often dentate, (ciliate). <b>Racemes</b> 5–23-flowered, ebracteate or proximalmost 1(–3) flowers bracteate, considerably elongated in fruit; rachis slightly or not flexuous, pubescent as stem. <b>Fruiting</b> pedicels suberect to ascending (often appressed to rachis), straight, (1.5–)2.5–5(–9) mm, pubescent, trichomes simple and 2–4-rayed. <b>Flowers</b>: sepals ovate, 1.7–2.5 mm, pubescent, (trichomes simple and short-stalked, 2–4-rayed); petals white, spatulate, 2.5–4 × 1.7–2.5 mm; anthers ovate, 0.3–0.4 mm. <b>Fruits</b> (sometimes subappressed to rachis), oblong to lanceolate-elliptic, plane, flattened, 4–8 × 2–3 mm; valves glabrous or pubescent, trichomes simple and short-stalked, 2-rayed, 0.05–0.25 mm; ovules 18–26 per ovary; style (0.01–)0.1–0.4(–0.5) mm, (glabrous, stigma about as wide as style). <b>Seeds</b> oblong, 0.9–1.2 × 0.5–0.7 mm. <b>2n</b> = 48.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Rock outcrops and sea cliffs, talus, gravelly and sandy terraces, moist bluffs, turfy limestone shores
|elevation=0-500 m
|distribution=Greenland;Nfld. and Labr.;N.W.T.;N.S.;Que.;Europe (Finland;Norway;n Russia;Scotland;Sweden);Atlantic Islands (Iceland).
|discussion=<p><i>Draba norvegica</i> is a highly variable hexaploid taxon and, as delimited herein, it probably represents two taxa with the same distribution and same chromosome number. It is related to hexaploid <i>D. arctogena</i>, from which it is distinguished by characteristics listed under 8. <i>D. arctogena</i>.</p><!--
--><p><i>Draba norvegica</i> was divided by O. E. Schulz (1927) into eight varieties, whereas R. C. Rollins (1993) recognized just two. In the latter treatment, var. clivicola is distinguished by having predominantly branched, appressed trichomes on stems proximally, lanceolate, glabrous fruits, and slender, erect-appressed pedicels. By contrast, <i></i>var.<i> norvegica</i> is said to have predominantly simple, spreading trichomes on stems proximally, narrowly ovate to elliptical, glabrous or pubescent fruits, and stout, divaricately ascending pedicels. These differences are extremes of a continuum, and we agree with G. A. Mulligan (1970) in reducing <i>D. clivicola</i> to synonymy of <i>D. norvegica</i>. Rollins indicated that <i>D. norvegica</i> grows in Minnesota, but we have not seen any material from that state.</p><!--
--><p><i>Draba norvegica</i> is found in Europe in arctic and subarctic areas.</p>
|tables=
|references=
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-->{{#Taxon:
name=Draba norvegica
|authority=Gunnerus
|rank=species
|parent rank=genus
|synonyms=Draba clivicola;Draba hirta var. norvegica;Draba norvegica var. clivicola;Draba norvegica var. hebecarpa;Draba rupestris;Draba scandinavica var. hebecarpa;Draba trichella
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Aug.
|habitat=Rock outcrops and sea cliffs, talus, gravelly and sandy terraces, moist bluffs, turfy limestone shores
|elevation=0-500 m
|distribution=Greenland;Nfld. and Labr.;N.W.T.;N.S.;Que.;Europe (Finland;Norway;n Russia;Scotland;Sweden);Atlantic Islands (Iceland).
|reference=None
|publication title=Fl. Norveg.
|publication year=1772
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V7/V7_435.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba norvegica
}}<!--

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