Vascular Plants of North Carolina
Account for Coast Violet - Viola brittoniana   Pollard
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Section 6 » Order Violales » Family Violaceae
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AuthorPollard
DistributionEssentially only in the Coastal Plain, including the Sandhills region; scattered nearly throughout the province, though oddly no records for the many counties surrounding Pamlico Sound.

This is a violet with an odd range for the genus, limited to the Coastal Plain and somewhat Northern, as well. It ranges from eastern MA south to SC, ranging west barely to eastern PA.
AbundanceUncommon and local, to locally very rare. Though RAB (1968) states "locally abundant", this might not be the case today. This is a Watch List species.
HabitatThis is a wetland species, growing in seepages, openings in swamps, at the edges of brackish to fresh marshes, and damp pinewoods. It generally grows in acidic soil.
PhenologyBlooms in April and May, and fruits shortly after flowering.
IdentificationThis is a robust and fairly tall acaulescent violet, with the naked flowering stalks often reaching to 8-9" tall. The leaves are deeply cleft, typically into 7-11 linear segments, with the middle one often wider; the blade is about 2" across, wider and longer than in most other violets. The flower is a rich violet to purple with a white center and is quite large, usually about 1.5" tall and wide. Thus, in bloom this is a very stunning species, and the highly dissected leaves, a bit like those of the often seen V. pedata, make it hard to overlook. One form of the species, however, has somewhat triangular leaves and may cause confusion with other species; however, the basal portion of these leaves has large and sharp teeth. V. pedata, a species of dry roadbanks or other dry sites, has similar narrow segments as with the frequent form, but that species has the orange stamens extending past the throat (as opposed to hidden inside the throat), and has the lateral petals glabrous inside the throat as opposed to bearded in V. brittoniana.
Taxonomic CommentsWeakley (2018) does not break out the two forms into varieties, as many references do -- var. brittoniana and var. pectinata.

General note on Viola: In 2009-10 B.A. Sorrie (website map editor) went through the whole collection at NCU, annotating all specimens against those verified by experts in the genus. The range maps in RAB (1968) have been changed accordingly. More recently, H. Ballard and students are in the process of revising all Southeastern Viola, and they will recognize more species than are listed on this website, which follows Weakley (2018).
Other Common Name(s)Northern Coastal Violet, Britton's Violet
State RankS2? [S2S3]
Global RankG4G5
State StatusW7 [W1]
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