一般生长在地面以上，连接叶和根的轴状结构。其上着生叶、花和果实，是植物的营养器官之一
Generally growing above the ground, it is an axial structure connecting leaves and roots. Leaves, flowers, and fruits grow on it, making it one of the nutritional organs of the plant.

植物的乳汁。
Latex: refers to the white, milky fluid produced by certain plants, notably rubber trees and some species of flowering plants.

带茎的花序
Flower clusters with stems

块状的茎
Block-shaped stem

草质的茎
Grassy Stem

肉质的茎
Fleshy Stem

带叶的茎
Stem with leaves