Ceratophyllum

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Ceratophyllum

 

(hornwort), a genus of plants of the family Ceratophyllaceae. The perennial underwater herbs have thin, branching stems reaching 1–1.5 m in length. The perianth of the staminate flowers is whitish and generally consists of 12 sections; the perianth of the pistillate flowers is greenish and has nine or ten sections. There are about ten species of Ceratophyllum, distributed throughout the world. The USSR has six to eight species, including C. demersum and C. submersum, which grow in stagnant and slowly moving waters. Hornworts serve as food for fish and waterfowl.

References in periodicals archive ?
The growing stands of coontail moss (also known by its formal name hydrilla verticillata) have become the kudzu of Arkansas lakes.
Much of Lake Jackson is shallow and interspersed with sand, hydrilla, water lilies, coontail and other vegetation--lovely habitat for fish.
A September teal hunter needn't worry about sucking in a lower unit full of coontail moss and setting the whole machine afire--mud motors happily grind through the slop and don't depend on a flow of water to keep them from overheating.
Shadows whisk across the water, racing past lily pads and brushing over coontail, the whispering wingbeats in full chase of the forms below.
BEHIND ME, A SPLASHING PADDLE METHODICALLY swirled in the water, thrashing lily pads and cutting coontail.
Say you're fishing a shallow flat in the spring and catching fish off of arrowhead, but not from pads, coontail or maidencane.
While today Lake Tarpon has a lot of peppergrass and some milfoil, coontail moss and eel grass, it used to have extensive hydrilla, which is prime habitat for invertebrates.