Viola rotundifolia - (image 1 of 4)
Taxonomy
Family: Violaceae
Habitat
Deep, rich woods.
Associates
Distribution
Southeast Quebec and ME west to southwest Ontario, south to PA, NJ, DE, and along mountains to SC and GA.
Morphology
Perennial from an elongate rhizome. Leaves all basal, broadly cordate-ovate at anthesis, 2-3 cm long and almost as wide, finely crenate, petiolate with fine hairs; blades becoming larger in summer, to 12 cm, orbicular-ovate with overlapping basal lobes. Flowers bright yellow, the two lateral petals bearded, the lower three petals with brown viens; style clavate and abruptly capitate. Fruit ellipsoid, to 8 mm, seeds ivory.
Notes
Flowers April to May
Wetland indicator: Facultative Upland +
Can be distinguished from V. pubescens (downy yellow violet) by the lack of cauline leaves and broadly cordate-ovate leaves.
References
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
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Michael Hough © 2010 |