View source for Berberis nervosa

{{Treatment/ID
|accepted_name=Berberis nervosa
|accepted_authority=Pursh
|publications={{Treatment/Publication
|title=Fl. Amer. Sept.,
|place=219. 1814
|year=1814
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Berberis nervosa var. mendocinensis
|authority=Roof
}} {{Treatment/ID/Synonym
|name=Mahonia nervosa
|authority=(Pursh) Nuttall
}} {{Treatment/ID/Synonym
|name=Mahonia nervosa var. mendocinensis
|authority=(Roof) Roof
}}
|hierarchy=Berberidaceae;Berberis;Berberis nervosa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Berberidaceae]]</div><div class="higher-taxon"><small>genus</small>[[Berberis]]</div><div class="higher-taxon"><small>species</small>[[Berberis nervosa]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> evergreen, 0.1-0.8(-2) m. <b>Stems</b> monomorphic, without short axillary shoots. <b>Bark</b> of 2d-year stems brown or yellow-brown, glabrous. <b>Bud</b> scales (13-)20-44 mm, persistent. <b>Spines</b> absent. <b>Leaves</b> 9-21-foliolate; petioles 2-11 cm. <b>Leaflet</b> blades thin and ± flexible; surfaces abaxially rather dull, smooth, adaxially dull, somewhat glaucous; terminal leaflet stalked, blade 2.9-8.4 × 1.2-4.8 cm, 1.8-3.2 times as long as wide; lateral leaflet blades lance-ovate to ovate, 4-6-veined from base, base rounded to cordate, margins plane, toothed, each with 6-13 teeth 1-2(-3) mm tipped with spines to 1-2.4 × 0.1-0.2 mm, apex acute or broadly acuminate. <b>Inflorescences</b> racemose, dense, 30-70-flowered, 6-17 cm; bracteoles membranous, apex acute, obtuse, or rounded. <b>Flowers</b>: anther filaments without distal pair of recurved lateral teeth. <b>Berries</b> blue, glaucous, oblong-ovoid or globose, 8-11 mm, juicy, solid. <b>2n</b> = 56.</span><!--

-->{{Treatment/Body
|phenology=Flowering winter–spring (Mar–Jun).
|habitat=Open or shaded woods, often in rocky areas
|elevation=0-1800 m
|distribution=B.C.;Calif.;Idaho;Oreg.;Wash.
|discussion=<p>Plants of <i>Berberis nervosa</i> are usually very low (commonly 0.1-0.3 m), but occasional plants may be considerably taller (to 2 m). One such population from north of Westport, California, has been separated as <i>B. nervosa</i> var. mendocinensis. Similar populations occur sporadically throughout the range of <i>B. nervosa</i>, so the form should not be recognized taxonomically.</p><!--
--><p><i>Berberis nervosa</i> is resistant to infection by Puccinia graminis.</p><!--
--><p>The Skagit tribe used <i>Berberis nervosa</i> medicinally in a root preparation to treat venereal disease (D. E. Moermann 1986).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Berberis nervosa
|author=
|authority=Pursh
|rank=species
|parent rank=genus
|synonyms=Berberis nervosa var. mendocinensis;Mahonia nervosa;Mahonia nervosa var. mendocinensis
|basionyms=
|family=Berberidaceae
|phenology=Flowering winter–spring (Mar–Jun).
|habitat=Open or shaded woods, often in rocky areas
|elevation=0-1800 m
|distribution=B.C.;Calif.;Idaho;Oreg.;Wash.
|reference=None
|publication title=Fl. Amer. Sept.,
|publication year=1814
|special status=Endemic;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_479.xml
|genus=Berberis
|species=Berberis nervosa
}}<!--

-->[[Category:Treatment]][[Category:Berberis]]