Caterpillar Tree
Main content start
A CATERPILLAR TREE WITH FOUR LEAVES. Quercus agrifolia, Coast live oak.
Cobb track.
A caterpillar tree is a tree in which all the vertices are connected to the spine of the tree (here the leftmost branch). Caterpillar trees are the most unbalanced binary rooted tree.
Photo: Alissa Severson, January 31, 2018