 Instead of vascular plants, aquatic flora is often dominated by several green algae species, notably "Draparnaldioides", "Tetraspora", and "Ulothrix" in water shallower than ; although "Aegagrophila", "Cladophora", and "Draparnaldioides" may occur deeper than .Except for "Ulothrix", there are endemic Baikal species in all these green algae genera.More than 400 diatom species, both benthic and planktonic, are found in the lake, and about half of these are endemic to Baikal; however, significant taxonomic uncertainties remain for this group.