A genus of filamentous, branched, green algae in which the cells are multinucleate. Species of the genus Cladophora are common. They form long, tangled, rough-textured skeins (blanket weed), usually attached to rocks, in standing or running fresh water. They may be a troublesome weed in garden ponds. Some species are marine, growing (often abundantly) on rocks on the lower shore, and in rock pools.
Subjects: Plant Sciences and Forestry.