The radially symmetrical (actinomorphic) flowers are always perfect and have five parts (the exceptions to this rule are the four-petaled "D. pygmaea" and the eight to 12-petaled "D. heterophylla"). Most of the species have small flowers (<1.5 cm or 0.6 in). A few species, however, such as "D. regia" and "D. cistiflora", have flowers or more in diameter. In general, the flowers are white or pink. Australian species display a wider range of colors, including orange ("D. callistos"), red ("D. adelae"), yellow ("D. zigzagia") or metallic violet ("D. microphylla").