Identification of Yizhihao(Artemisia rupestris) and Its Confusable Material Common Yarrow (Achillea millefolium) / 中草药

Differences in their pharmacognostic features, microscopic appearance of their powders and UV spectrums, can be used to differentiate Artemisia rupestris from its confusable Achillea millefolium. It is of value to identify them in actual practice.