fastigiate

形容词 fastigiate:

1. having clusters of erect branches (often appearing to form a single column)

fas.tig.i.ate

adj.Botany （形容词）【植物学】
Having erect and almost parallel branches tapering toward the top, as in the Lombardy poplar.
帚状的：伦巴第白杨树等的枝条挺直，几乎平行，且向顶端逐渐变细的

来源：
Medieval Latin fastogi3tus [high]
中世纪拉丁语 fastogi3tus [高的]
from Latin fastogium [apex, height]
源自 拉丁语 fastogium [尖顶，极度]

【引伸】
fastig.iately
adv.（副词）