Petiole - Definition and Function - Biology Dictionary
网页2016年12月17日 · 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 (botany) - Wikipedia
网页The petiole is a stalk that attaches a leaf to the plant stem. In petiolate leaves the leaf stalk may be long (as in the leaves of celery and rhubarb), or short (for example basil). When completely absent, the blade attaches directly to the stem and is said to be sessile.
Petiole Definition & Meaning - Merriam-Webster
网页The meaning of PETIOLE is a slender stem that supports the blade of a foliage leaf.
Petiole | plant anatomy | Britannica
网页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. Read More
13.1: Leaf Parts and Arrangement - Biology LibreTexts
网页The Petiole. Most leaves have a stem that attaches the blade of the leaf to the rest of the plant. This is the petiole. However, in some plants, the leaves do not have a petiole and the blade is directly attached to the plant stem. These leaves are sessile (lacking a petiole).
Petiole - Vocab, Definition, and Must Know Facts | Fiveable
网页The petiole is the stalk that connects the leaf blade to the stem of a plant. This structure plays a critical role in supporting the leaf, facilitating the transport of water and nutrients between the leaf and the rest of the plant, and allowing leaves to orient themselves toward light for optimal photosynthesis.
What's a petiole? Botany terms explained - OSU Extension Service
网页Petiole — The stalk that attaches a leaf to a stem. Pholem — Photosynthate-conducting tissue. Photosynthate — A food product (sugar or starch) created through photosynthesis.
Petiole | Definition, Structure & Function - Lesson - Study.com
网页2023年11月21日 · A petiole is a stalk that attaches the blade of a leaf to the main stem of the plant. There are many functions of a petiole, and this lesson provides a brief overview of what a petiole is and...
Petiole - Vocab, Definition, and Must Know Facts | Fiveable
网页A petiole is the stalk that connects a leaf blade to the stem of a plant. This structure is crucial for supporting the leaf, allowing it to effectively capture sunlight and engage in photosynthesis.
petiole - Dictionary of botany
网页petiole. The stalk that attaches the leaf lamina to the stem. The point of attachment is often strengthened by a widening of the base of the petiole. Some leaves (sessile leaves) lack a petiole and are joined to the stem at the base of the lamina. Sessile leaves are characteristic of most monocotyledons. The petiole is generally similar in ...