Closterium ehrenbergii var. ehrenbergii
Closterium ehrenbergii var. malinvernianum
Closterium ehrenbergii var. angustatum
Closterium ehrenbergii var. atumidum
(tree size 2)
Closterium ehrenbergii var. curvatum
Closterium ehrenbergii f. striatum
Closterium ehrenbergii var. minutissimum
Closterium ehrenbergii f. sigmoideum
Closterium ehrenbergii f. tenuis
Closterium ehrenbergii f. attenuatum
Closterium ehrenbergii var. brasiliense
Closterium ehrenbergii var. pseudopodolicum
Closterium ehrenbergii f. grande
Closterium ehrenbergii var. immane
Closterium ehrenbergii f. magnum
Closterium ehrenbergii var. michailovshoense
Closterium ehrenbergii f. percrassum
Closterium ehrenbergii var. podolicum
Closterium ehrenbergii var. angustum
Closterium ehrenbergii var. bosniacum
Closterium ehrenbergii var. concavum
Closterium ehrenbergii var. percrassum
Closterium ehrenbergii f. colorato
Closterium ehrenbergii f. curtum
Closterium ehrenbergii f. elevatum
Closterium ehrenbergii f. rhodopea