“Borrichia arborescence and Vigna luteola were among the common plants found in tropical scrub habitats extending from the beach to the interior of the islands.”
“The independent evolution of arborescence in nearly all major groups of plants was key to the development of multistratal forests in some habitats at this time.”
“A directed graph is called an arborescence if, from a given node known as the root vertex, there is exactly one elementary path to every other node.”