| Isoetes | Isoetes engelmannii A. Braun | Appalachian quillwort | ME | NH | VT | MA | CT | RI |
| Isoetes lacustris L. | lake quillwort | ME | NH | VT | MA | RI | ||
| Isoetes riparia Engelm. ex A. Braun var. amesii (A.A. Eat.) Proctor | Ames' quillwort | ME | VT | MA | CT | |||
| Isoetes tenella Lman | ME | NH | VT | MA | CT | RI | ||
| Isoetes tuckermanii A. Braun | Tuckerman's quillwort | ME | NH | VT | MA | CT | RI | |
| Isoetes X eatonii Dodge (pro sp.) | Eaton's quillwort | ME | NH | VT | MA | CT | ||
| Isoetes X foveolata A.A. Eat. ex Dodge (pro sp.) | quillwort | ME | NH | VT | MA |
Last Update: 1/4/97
Name: Ray Phillips
Email: rbphilli@Colby.edu