[kach-flahy] 
| any of various plants, esp. of the genera Silene and Lychnis, having a viscid secretion on the stem and calyx in which small insects are sometimes caught. |
| catch·fly (kāch'flī', kěch'-) n. Any of several plants of the genera Silene and Lychnis, native chiefly to the Northern Hemisphere and having white, pink, red, or purplish flowers and sticky stems and calyxes on which small insects may become stuck. |