Asteraceae (Compositae): the Sunflower Family
Second largest family of flowering plants.
Leaves: opposite or alternate, simple to bipinnate, estipulate
Plants: synoecious or polygamous, sometimes monoecious, rarely dioecious
Inflorescence: capitulum or head--involucrate heads that are secondarily aggregated into cymose clusters or racemes
Flowers: perfect or imperfect, regular or irregular, of several kinds