Hydrocharitaceae - frogbit family

WeedsPoisonous PlantsHay Fever
Gerald A. Mulligan (Agriculture Canada, Ottawa, retired)
Hydrocharis morsus-ranae L.,European frogbit, hydrocharide grenouillette
Perennial; spreading by seeds and vegetative buds and fragments; flowers white (with yellow centre); common in southern Quebec and Ontario; stems to 6 feet (20 dm) long; floating aquatic in still and slowly moving water of bays, ponds, rivers, streams, marshes and ditches; introduced from Europe and is rapidly increasing in range in North America.
Text and photos of European frogbit by Stephen J. Darbyshire

Click on a photo to view an enlarged image.
Weed Name Photo Weed Name Photo
European frogbit, hydrocharide grenouillette
European frogbit, hydrocharide grenouillette