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What is the name of the stalk that connects a leaf to the stem in broad-leaved plants?

Petiole

The stalk that connects a leaf to the stem in broad-leaved plants is called the petiole. This structure is vital for the leaf's function as it supports the leaf and positions it in an optimal orientation for sunlight absorption, facilitating photosynthesis. The petiole also serves to transport nutrients, water, and photosynthates between the leaf and the rest of the plant, which is essential for overall plant health and growth.

In contrast, other terms such as internode refer to the segments of the stem between leaves, culm is specific to the stems of grasses, and sheath describes a structure that encases the stem at the base of a leaf, particularly in certain plants like grasses. Understanding the specific roles and definitions of these terms helps clarify the unique structure and function of the petiole in broad-leaved plants.

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Internode

Culm

Sheath

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