Cat's-tail and Cattail

Cat's-tail noun - Tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down; its long flat leaves are used for making mats and chair seats; of North America, Europe, Asia and North Africa.

Cattail and cat's-tail are semantically related. In some cases you can use "Cattail" instead a noun phrase "Cat's-tail".

Cattail noun - Tall erect herbs with sword-shaped leaves; cosmopolitan in fresh and salt marshes.

Cat's-tail and cattail are semantically related. Sometimes you can replace phrase "Cat's-tail" with "Cattail", this terms are similar.