Having erect, clustered, almost parallel branches, as in the Lombardy poplar.
Having a narrow, spirelike shape, as certain kinds of trees.
(botany) Erect and parallel.
The branches of this species are fastigiate.
(botany, horticulture) Having closely-bunched erect parallel branches.
This is a fastigiate variety.
(horticulture) A tree or shrub with erect, parallel branches.
Origin of fastigiate
Medieval Latin fastīgiātus high from Latin fastīgium apex, height