About Ceratophyllum echinatum A.Gray
Ceratophyllum echinatum is an aquatic herb. It typically grows without roots, produces freely branching stems that can reach up to 4 meters (13 feet) in length. All of its leaves grow submerged underwater, and are usually arranged in whorls of 5 to 12 leaves per whorl. Its tiny flowers are either male or female, lack petals, and have 3 to 15 sepals that are sometimes mistaken for petals. Male flowers hold around 12 to 16 stamens. This species blooms from February through July. Its fruits bear dry seeds that have a rough surface covered in spines.
