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petiole    
n. 叶柄,柄,柄部

叶柄,柄,柄部

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  • Petiole (botany) - Wikipedia
    In botany, the petiole ( ˈpiːti oʊl, ˈpɛti - ), commonly known as the leaf stem or leaf stalk, is the stalk that attaches the leaf to the twigs, branches or stems of a plant
  • PETIOLE Definition Meaning - Merriam-Webster
    The meaning of PETIOLE is a slender stem that supports the blade of a foliage leaf
  • Petiole, Petiolule - Master Gardeners of Northern Virginia
    A petiole is the stalk that joins the blade (the flat part of the leaf, also called a lamina) to the node (the attachment point on a stem) The segment of the stem between two nodes is called an internode
  • Petioles - UC Davis
    longitudinal section through petiole (vb-vascular bundle, c-collenchyma, p-parenchyma, arrows indicate trichomes) This is a longitudinal section of the leaf petiole
  • Petiole | plant anatomy | Britannica
    The petiole is a stalk that connects the blade with the leaf base The blade is the major photosynthetic surface of the plant and appears green and flattened in a plane perpendicular to the stem
  • Petiole - Definition and Function | Biology Dictionary
    The petiole is the stalk that supports a leaf in a plant and attaches it to the stem Many people often call it a stem, which is incorrect A stem is the part of the plant that serves as the main source of support and produces nodes and roots, and that’s not what we observe in petioles
  • Petiole - an overview | ScienceDirect Topics
    Many leaves also have a proximal stalk, the petiole or (e g , in ferns) the stipe A leaf or leaf part (typically at the base) that partially or fully clasps the stem above the node is a leaf sheath, such as in the Poaceae (grasses) and many Apiaceae
  • What Are Petioles In Plants - ezgardentips. com
    The petiole is the stalk that connects a leaf to a plant’s stem, often confused with a stem, which serves as the plant’s primary support structure and produces nodes and roots
  • What Is the Petiole? Structure and Function Explained
    The petiole is a stalk-like structure connecting the leaf blade (lamina) and the main stem of a plant This component is fundamental to the plant’s architecture, holding the photosynthetic machinery away from the stem
  • 3. 4. 1: External Structure of Leaves - Biology LibreTexts
    Leaves commonly consist of a petiole and lamina (blade) The edge of the leaf is called the margin, and the vascular bundles form veins Leaves differ in their arrangement and whether they are …





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