The peony is a herbaceousperennial, while the tree peony is a deciduous shrub.
芍药是多年生草本植物，而牡丹是落叶灌木。
2
The natural vegetation in the sand ground relies mainly on the perennialherbaceous and the drought shrub.
沙地的原生植被以多年生草本和旱生灌木为主。
3
The species of Gramineae, Compositae, and other perennialherbaceous plants increased gradually with time, and played important roles in maintaining community function.