View source for Viola trinervata

{{Treatment/ID
|accepted_name=Viola trinervata
|accepted_authority=(Howell) Howell ex A. Gray
|publications={{Treatment/Publication
|title=Bot. Gaz.
|place=11: 290. 1886
|year=1886
}}
|common_names=Rainier or sagebrush or three-nerved violet
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Viola beckwithii var. trinervata
|authority=Howell
|rank=variety
|publication_title=Bot. Gaz.
|publication_place=8: 207. 1883
}}
|synonyms=
|hierarchy=Violaceae;Viola;Viola trinervata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Violaceae]]</div><div class="higher-taxon"><small>genus</small>[[Viola]]</div><div class="higher-taxon"><small>species</small>[[Viola trinervata]]</div></div>
|volume=Volume 6
|mention_page=page 111, 116
|treatment_page=page 161
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, caulescent, not stoloniferous, 5–15 cm. <b>Stems</b> 1–4, decumbent, ascending, or erect, ca. 1/2 subterranean, glabrous, from single, vertical, deep-seated caudex. <b>Leaves</b> basal and cauline; basal: 1–7, palmately compound, leaflets 3–5; stipules adnate to petiole, forming 2 linear-lanceolate wings, unlobed, margins entire, apex of each wing free, acute; petiole 4.5–15 cm, glabrous; blade reniform or ovate to ± orbiculate, 2–5 × 2.5–5 cm, coriaceous, base tapered, leaflets cleft or dissected into 2–3 elliptic, lanceolate, or oblanceolate lobes 2–7 mm wide, margins usually entire, eciliate, apex acute, mucronulate, surfaces glabrous (± glaucous), abaxial surface usually with prominent vein parallel to each margin; cauline similar to basal except: stipules lanceolate; petiole 1–5.5 cm; blade 1–3 × 2–4.5 cm. <b>Peduncles</b> 1.1–7 cm, glabrous. <b>Flowers</b>: sepals lanceolate, margins eciliate, auricles 0–1 mm; petals: upper 2 often overlapping, dark reddish violet on both surfaces, lower 3 lilac, rarely white, lateral 2 bearded, with yellow patch basally and reddish violet patch distal to yellow patch, lowest 9–15 mm with yellow patch, dark reddish violet-veined, spur yellow, gibbous, 0.6–1.5 mm; style head bearded; cleistogamous flowers absent. <b>Capsules</b> ovoid, 7–12 mm, glabrous. <b>Seeds</b> tan, 3.2–4.5 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–May.
|habitat=Sagebrush flats, dry, rocky hillsides, usually in gravelly soil
|elevation=400–1200 m
|distribution=Oreg.;Wash.
|discussion=<p>In some populations of <i>Viola trinervata</i> the lower three petals are white with a yellow area proximally (V. B. Baird 1942).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Viola trinervata
|authority=(Howell) Howell ex A. Gray
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Viola beckwithii var. trinervata
|family=Violaceae
|phenology=Flowering Mar–May.
|habitat=Sagebrush flats, dry, rocky hillsides, usually in gravelly soil
|elevation=400–1200 m
|distribution=Oreg.;Wash.
|reference=None
|publication title=Bot. Gaz.
|publication year=1886
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V6/V6_290.xml
|genus=Viola
|species=Viola trinervata
}}<!--

-->[[Category:Treatment]][[Category:Viola]]