Narrow-Leaved Cattail – Oneida County Aquatic Invasive Species Program

Introduction: Narrow-leaved cattail is a tall perennial plant with long, narrow leaves and cylindrical flowering heads. The flowering head is split into two segments by a gap which the native common cattail (Typha latifolia) does not have. The upper segment is the thin, yellow male segment. The lower segment is the puffy, brown female segment. Narrow-leaved cattail can grow up to 7 feet tall.

Ecology and Natural History: Narrow-leaved cattail is native to Northern Africa, Asia, and Eurasia. It is believed to have been introduced to the Atlantic coast and migrated west through canals and ditches. It is established in 38 states. Narrow-leaved cattail and common cattail are able to produce a hybrid cattail (Typha x glauca) that has characteristics of both species. The hybrid is considered more invasive than narrow-leaved cattail.

Impacts of Introduction: Narrow-leaved cattail limits the biodiversity in wetlands by forming dense, monotypic stands. Its roots can produce dense rhizomes that crowd out native wetland plants.