tetramerous

adjective

1. consisting of or divided into four parts.
2. Botany. (of flowers) having the parts of a whorl arranged in fours or multiples of four.

adjective

1. (esp of animals or plants) having or consisting of four parts
2. (of certain flowers) having parts arranged in whorls of four members

1. Having four similar segments or parts.
2. Having flower parts, such as petals, sepals, and stamens, in sets of four.