The frog bite (Hydrocharis morsus-ranae) is a perennial aquatic plant which belongs to the Waterkaardefamilie (Hydrocharitaceae),. The plant in the ornamental garden pond plant is used as.
The plant is 15-40 cm long and fragile stems. The plant is 5-20 cm long spurs at the end where a new plant is formed. This causes floating turf. The roots, which do not touch the ground, taking the nutrients from the water. The floating, circular, 2-7 cm wide leaves have a heart shaped base. They somewhat resemble the mouth of a frog, hence the name frog bite. The translucent stipules are about 2 inches long and 1 inch wide.
The frog bite blossoms from June to August with white flowers 1.5 to 3 cm. Two to five male flowers are together in a cyme with two sheaths, whereas female flowers mostly solitary in a flower sheath stand.
The fruit is about 1 cm long, round berry. Vegetative propagation by winter buds and shoots is more important than using seed.
In autumn the leaves and stems die off and are about 1 cm long, starchy wintering buds (Turion) formed from the mother plant and let go of sinking to the bottom. In the spring they rise again to the surface and develop into new plants.
The plant is found in foods rich in fresh or brackish water.
Names in other languages:
· German: Froschbiss
· English: European frog's bit
· French: moraine