a. 锥形的, 倾斜的

[ adj ]
having clusters of erect branches (often appearing to form a single column)
<adj.all>

Fastigiate \Fas*tig"i*ate\, Fastigiated \Fas*tig"i*a`ted\, a.
[L. fastigium gable end, top, height, summit.]
1. Narrowing towards the top.

2. (Bot.) Clustered, parallel, and upright, as the branches
of the Lombardy poplar; pointed.

3. (Zo["o]l.) United into a conical bundle, or into a bundle
with an enlarged head, like a sheaf of wheat.