Noun | 1.cat's-ear - any of several plants of the genus Calochortus having flowers with petals shaped like cat's earsliliaceous plant - plant growing from a bulb or corm or rhizome or tuberCalochortus, genus Calochortus - large genus of western North American leafy-stemmed bulbous herbs | | 2.cat's-ear - European weed widely naturalized in North America having yellow flower heads and leaves resembling a cat's earsCalifornia dandelion, capeweed, gosmore, Hypochaeris radicatagenus Hypochaeris, genus Hypochoeris, Hypochaeris, Hypochoeris - widely distributed genus of herbs with milky juice; includes some cosmopolitan weedsweed - any plant that crowds out cultivated plants |