Royal Catchfly  occurs in dry, rocky soils in open woods, wood margins and prairies. A clump-forming perennial which grows 3-4' tall. Small clusters of 5-petaled, scarlet red flowers (2" across) appear in summer. Sticky calyx can trap or "catch" small insects, hence the common name. Long, slender, often reclining stems. 10-20 pairs of downy, lance-shaped leaves.