crown daisy or garland chrysanthemum (Chrysanthemum coronarium), a leafy vegetable commonly used in Asian cuisine

mugwort (Artemisia)

tarragon (Artemisia capillaris)

a species of flowering plant in the aster family, scientifically known as Artemisia japonica

plants of the genus Artemisia, or any wild grass/weed resembling wormwood

an antimalarial chemical compound derived from sweet wormwood (Artemisia annua), also known as qinghaosu

to be deeply grieved or broken-hearted over the current state of affairs or the suffering of the people