any of various chiefly tropical evergreen trees,shrubs,or woody vines of the family Palmae(or Arecaceae),characteristically having unbranched trunks with a crown of large pinnate or palmate leaves having conspicuous parallel venation

• 任一种棕榈科（或槟榔科）的各种主要的热带常绿树、灌木或木质藤本植物，特点为有无分支的树干，其顶端集生羽状或掌状的树叶，并带有明显的平行叶脉