{{Short description|Species of flowering plant}} {{Speciesbox |image = Viola rostrata.jpg |genus = Viola (plant) |species = rostrata |authority = Pursh |}}

'''''Viola rostrata''''', commonly called the '''long-spurred violet''', is an herbaceous plant in the violet family (Violaceae). It is native to eastern North America, where it is found in Canada and the United States, primarily in the Northeastern, Midwestern, and Appalachian regions.<ref>{{BONAP|ref|genus=Viola|species=rostrata|access-date=22 January 2018}}</ref> Its natural habitat is acidic mesic forests, often growing near ''Tsuga canadensis''.<ref name=Weakley>{{cite web |url= http://www.herbarium.unc.edu/flora.htm |title= Flora of the Southern and Mid-Atlantic States |author= Alan Weakley |date= 2015 |access-date= 2018-01-23 |archive-date= 2018-10-06 |archive-url= https://web.archive.org/web/20181006082209/http://herbarium.unc.edu/flora.htm |url-status= dead }}</ref>

==Description== It is a stemmed perennial plant. The cauline leaves are simple, toothed, ovate and acute. Basal leaves are cordate and 2–4&nbsp;cm. It produces flowers in the spring. The flowers are beardless, pale lilac with darker veins forming a darker centre eye.<ref name="Gleason">Gleason, Henry A and Arthur Cronquist. 1991. ''Manual of vascular plants of northeastern United States and adjacent Canada'', 2nd ed. New York Botanical Gardens, New York, New York.</ref> The spur is at least as long as the petal blades.<ref name="Rhoads">Rhoads, Ann Fowler and Timothy A Block. 2007. ''Plants of Pennsylvania: an illustrated manual'', 2nd ed. University of Pennsylvania Press, Philadelphia.</ref> <gallery widths="150px" heights="150px"> File:LongSpurredViolet.jpg|''V. rostrata'' can be distinguished from other ''Viola'' by its long spur </gallery>

==Hybrids== ''Viola rostrata'' is known to hybridize with ''Viola conspersa'' (American dog-violet) and ''Viola striata'' (creamy violet).<ref name="Gleason" />

==References== {{Reflist}}

==External links== * [https://plants.usda.gov/java/profile?symbol=VIRO USDA Plants Database profile: ''Viola rostrata'']

{{Taxonbar|from=Q3024420}}

rostrata Category:Flora of New Jersey Category:Flora without expected TNC conservation status

{{Violaceae-stub}}