The stomata type of yew leaf is haplocheilic.For different species of yew tree, the surface view of epidermal cells and the form of stomata are also a little different.

• 表皮细胞表面观为方形或长方形，气孔类型单唇型，不同种类红豆杉的表皮细胞表面观和气孔形状也有所不同。