EcoFlora - Viola x wittrockiana

Viola x wittrockiana Gams. [altaica × lutea or tricolor]
Family: Violaceae	Gleason & Cronquist Resources Vascular plants of NE US and adjacent Canada Originating by hybridization between V. tricolor and other spp. such as V. lutea Huds., and selected for large fls (5-10 cm wide) in diverse colors, occasionally escapes or persists briefly after cult. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
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