basipetal

形容词 basipetal:

1. of leaves or flowers; developing or opening in succession from apex to base

ba.sip.e.tal

adj.Botany （形容词）【植物学】
Of or relating to the development or maturation of tissues or organs or the movement of substances, such as hormones, from the apex downward toward the base.
向基的：与组织或器官的形成发展或与如荷尔蒙类物质运动有关的，从顶部向下往基部运动

【引伸】
basip.etally
adv.（副词）