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