Achnanthes
Achnanthes is a genus of diatoms belonging to the family Achnanthaceae.
The genus was described in 1822 by Jean Baptiste Bory de Saint-Vincent.
The genus has cosmopolitan distribution.
Species:Achnanthes aapajaervensis Cleve-EulerAchnanthes abundans Manguin, 1954Achnanthes acares Hohn & HellermanAchnanthes acus SimonsenAchnanthes acuta Frenguelli