family, is comprised only of the genus Typha. Four species of Typha occur in North America. The four North American cattails are: T. latifolia, T. angustifolia, T. glauca, and T. domengensis. T. latifolia has a range including Europe and Asia (Mohlenbrock 1970). In North America, it ranges widely from Alaska, through Canada, throughout the U.S. and into Mexico (Hotchkiss & Dozier 1949). It is common in every county in Illinois (Mohlenbrock 1970). T. angustifolia grows in Africa, Europe, and Asia (Mohlenbrock