| Noun | 1. | cat's-ear - any of several plants of the genus Calochortus having flowers with petals shaped like cat's ears liliaceous plant - plant growing from a bulb or corm or rhizome or tuber Calochortus, 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 ears genus Hypochaeris, genus Hypochoeris, Hypochaeris, Hypochoeris - widely distributed genus of herbs with milky juice; includes some cosmopolitan weeds weed - any plant that crowds out cultivated plants |