Antipathes dichotoma can grow to a height of 1m, it forms a sparsely branching structure with slender and the smaller branches bear four to six rows of spines.
A colony of Antipathes dichotoma can grow to a height of 1 m (3 ft 3 in) or more. It forms a sparsely branching structure with slender, flexible branches arranged irregularly around the trunk. The smaller branches bear four to six rows of short, smooth conical spines. 
