noun (plural dichasia /-ZHēə/ /-zēə/)Botany
A cyme in which each flowering branch gives rise to two or more branches symmetrically placed.
- A flowering plant consists of a rosette of hairy basal leaves with long petioles, and from one to several flowering shoots, up to 50 cm tall, each bearing a dichasium of several to many flowers.
- All the species studied have cyathia arranged in pleiochasia and each pleiochasial branch forms several pleiochasia or dichasia; the degree of branching in the inflorescence is variable.
- But if two buds of a sympodial branch sprout at the same time, a more or less fork-shaped pattern, a dichasium, is formed.
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