1. (noun)cat's-tail, bullrush, bulrush, nailrod, reed mace, reedmace, Typha latifolia 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 Synonyms: reedmace, reedmace, nailrod, cat's-tail, soft rush, bullrush, commonrush, bulrush