
Leaf - Wikipedia
A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in …
Leaf | Definition, Parts, & Function | Britannica
Dec 2, 2025 · Leaves are the primary sites of photosynthesis and manufacture food for plants. They are an integral part of the stem system and can be modified into a variety of other plant organs.
Plant Leaves and Leaf Anatomy - ThoughtCo
Oct 2, 2024 · Leaves and different parts of leaves can have various shapes and sizes. The basic components of leaves in flowering plants (angiosperms) include the blade, the petiole, and the stipules.
Common Leaves on Trees and Plants - The Tree Center
Learn about the different kinds of leaves found on conifers, flowering plants, grasses and more. Our guide features information on every type of leaf.
The Function of Leaves and Their Role in Nature
Aug 4, 2025 · Leaves are fundamental plant structures found across diverse landscapes. Beyond their aesthetic appeal, they perform fundamental processes that underpin life on Earth, acting as essential …
I Didn't Know That!: Leave the Leaves - U.S. National Park Service
Sep 19, 2025 · Look closer on your next park visit The same thing happens naturally across national parks. When you see a forest floor blanketed in leaves, remember, it’s habitat! That layer of leaves is …
Leaves - Biology Online Tutorial
Leaves are covered with a thin layer of epidermal cells which permit light to the interior of the leaf, yet protect the cells from physical damage. In addition to photosynthesis, leaves are involved in other …
Leaves – Biology - UH Pressbooks
Leaves are the main sites for photosynthesis: the process by which plants synthesize food. Most leaves are usually green, due to the presence of chlorophyll in the leaf cells. However, some leaves may …
LEAF Definition & Meaning - Merriam-Webster
The meaning of LEAF is a lateral outgrowth from a plant stem that is typically a flattened expanded variably shaped greenish organ, constitutes a unit of the foliage, and functions primarily in food …
Different Types of Leaves: Functions and Venation Patterns
Apr 19, 2025 · Learning about different types of leaves is important to see the many forms and functions of leaves on flowering plants. We can group leaves as simple or compound. Compound leaves have …