Virginia Tech Weed Identification Guide

Common Blue Violet: Viola papilionacea

Weed Description:  A perennial with heart-shaped leaves and purple flowers, most commonly 2 to 5 inches tall.   Common blue violet is found throughout the eastern United States and Canada.   It is primarily a weed of turfgrass and landscapes.
Leaves:  Leaves arise from a basal crown, are heart-shaped, and occur on long petioles. Leaves are also hairless and have rounded teeth along the margins.
Fruit:  A capsule ranging from 10 to 12 mm in length.
Roots:  Rhizomes and a fibrous root system. viola8-10.jpg (93857 bytes)
Flowers:  Occur on stalks that do not contain leaves.  Flowers consist of 5 petals that are purple or blue in color. The 2 lateral petals are bearded or hairy near the base.
Identifying Characteristics:   The heart-shaped leaves with rounded teeth along the margins, purple flowers, and rhizomes are all features that help in the identification of common blue violet.