Browsing family Isoetaceae
- Isoetes acadiensis L. Kott
- Isoetes appalachiana Brunton and Britton
- Isoetes engelmannii A. Braun
- Isoetes hyemalis Brunton
- Isoetes lacustris L.
- Isoetes mattaponica Musselman & W.C. Taylor
- Isoetes melanopoda Gay & Durieu
- Isoetes piedmontana (N.E. Pfeiffer) C.F. Reed
- Isoetes riparia Engelm. ex A. Braun
- Isoetes valida (Engelm.) Clute
- Isoetes virginica N.E. Pfeiffer
- Isoetes x altonharvillii Musselman & Bray
- Isoetes x bruntonii Knepper & Musselman
- Isoetes x carltaylori Musselman
- Isoetes x fairbrothersii Montgomery & Taylor?