Author:W. Carl Taylor Treatments IIsoëtaceae Isoëtes Isoëtes acadiensis Isoëtes bolanderi Isoëtes boomii Isoëtes butleri Isoëtes caroliniana Isoëtes echinospora Isoëtes engelmannii I cont.Isoëtes flaccida Isoëtes georgiana Isoëtes howellii Isoëtes lacustris Isoëtes lithophila Isoëtes louisianensis Isoëtes maritima Isoëtes melanopoda Isoëtes melanospora I cont.Isoëtes nuttallii Isoëtes occidentalis Isoëtes orcuttii Isoëtes prototypus Isoëtes riparia Isoëtes tegetiformans Isoëtes tuckermanii Isoëtes virginica