Aquatic Plant Identification Manual for Washington's Freshwater Plants
Plant-like Algae Index
Plant-like algae lack stems and leaves, although sometimes they have
structures that can be mistaken for stems and leaves. Plant-like algae
are green with cylindrical, whorled branches. They lack roots, but some
species attach to the sediment. Plant-like algae tend to lie on or just
above the sediments. They are found from shallow water to very deep
areas (20-30 meters) in clear water.
These are plant-like algae species. Links below lead to written descriptions, photographs, and line drawings.