Young Blonde Girl In The Field Of Yellow Flowers

A floral formula is a way to represent the structure of a flower using specific letters, numbers, and symbols. Typically, a general formula will be used to represent the flower structure of a plant family rather than a particular species. The following representations are used:
Ca = calyx (sepal whorl; e. g. Ca5 = 5 sepals)
Co = corolla (petal whorl; e. g., Co3(x) = petals some multiple of three )
Z = add if zygomorphic (e. g., CoZ6 = zygomorphic with 6 petals)