Isoetes
Isoetes × eatonii
Isoetes echinospora
Isoetes caroliniana
Isoetes appalachiana
Isoetes lacustris
Isoetes stephanseniae
Isoetes riparia
Isoetes occidentalis
Isoetes melanospora
Isoetes macrospora
Isoetes australis
Isoetes butleri
Isoetes beestonii
Isoetes tegetiformans
Isoetes olympica
Isoetes valida
Isoetes melanopoda
Isoetes heldreichii
Isoetes muelleri
Isoetes mississippiensis
Isoetes taiwanensis
Isoetes tuckermanii
Isoetes nuttallii
Isoetes sinensis
Isoetes engelmannii
Isoetes histrix
Isoetes malinverniana
Isoetes alpina
Isoetes brevicula
Isoetes araucaniana
Isoetes eludens
Isoetes louisianensis
Isoetes acadiensis
Isoetes ecuadoriensis
Isoetes toximontana
Isoetes stellenbossiensis
Isoetes capensis
Isoetes howellii
Isoetes bolanderi
Isoetes maritima
Aquatic communities in the British National Vegetation Classification system