Trees, shrubs or very often woody vines. Leaves opposite or
sometimes whorled, compound, rarely simple. Inflorescence usually cymose.
Flowers usually large and showy, bisexual. Stamens usually 4, didynamous, the
fifth one small and staminodal or absent, rarely stamens 5. Carpels 2,
syncarpous, ovary superior, usually 2-lobed. Fruit a bivalved, septicidal or
loculicidal capsule, sometimes fleshy and indehiscent. Seeds in most cases