European Frog-bit (Hydrocharis morsus-ranae) Frogbit. Robert Johnson, Cornell University. Ruthanna Hawkins, Cayuga Lake Watershed Network. Used with permission. Frogbit Drawing, University of Florida, Center for Aquatic and Invasive Plants Line Drawing DVD Master. Used with permission. Plant Characteristics Free-floating aquatic plant with leathery, heart-shaped leaves that are purplish red underneath Broad arching lateral veins with 75-90 degree angles from mid-rib Leaves measure a half inch to 2 1/4 inches in length and width (can look like a miniature water lily) Leaf stem does not have a mid-line groove Has a single three-petalled white flower Inhabits quiet edges of rivers and lakes and open marshes Forms dense layers of interlocking plants and dangling roots which can interfere with swimming, boating and fishing Reproduces by overwintering vegetative buds (turions) and through runners European Frog-bit in Sterling Creek, Cayuga County Has been found in Oneida Lake and Sterling Creek in Cayuga County European Frog-bit Distribution, USGS, Non-Indigenous Aquatic Species Back Page updated on September 8, 2005.