Petiole (botany)

（重定向自Leaf stalk）

Leaf of dog rose (Rosa canina), showing the petiole, two leafy stipules, the rachis, and five leaflets

Harvested rhubarb petioles with leaves attached

Acacia koa with phyllode between the branch and the compound leaves

In botany, the petiole (/ˈpiːtᵻoʊl/) is the stalk that attaches the leaf blade to the stem. The petiole is the transition between the stem and the leaf blade. Outgrowths appearing on each side of the petiole in some species are called stipules. Leaves lacking a petiole are called sessile or epetiolate.

单词	Leaf stalk
释义	Leaf stalk 英语百科 Petiole (botany) （重定向自Leaf stalk） In botany, the petiole (/ˈpiːtᵻoʊl/) is the stalk that attaches the leaf blade to the stem. The petiole is the transition between the stem and the leaf blade. Outgrowths appearing on each side of the petiole in some species are called stipules. Leaves lacking a petiole are called sessile or epetiolate.
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