Plant stem - Wikipedia
It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, engages in photosynthesis, stores nutrients, …
Stem | Description, Facts, & Types | Britannica
2024年11月8日 · Stem, in botany, the plant axis that bears buds and shoots with leaves and, at its basal end, roots. The stem conducts water, minerals, and food to other parts of the plant and …
Anatomy of a tree - US Forest Service
Leaves make food for the tree, and this tells us much about their shapes. For example, the narrow needles of a Douglas fir can expose as much as three acres of chlorophyll surface to the sun. …
Learn the Different Parts of a Tree | Tree Anatomy
Stem: Trees have one single woody stem that is the predominant support of the plant’s structure. This is known as its trunk. Diameter: A tree’s stem or trunk has a minimum 3-inch diameter at …
Detailed Parts of A Tree Explained (with Diagram)
2023年4月14日 · The crown of the tree is the tree canopy, which is made up of limbs, branches, stems, and leaves. For most trees, the leaves of a tree make up around 5% of the total tree, …
Tree structure and growth - Encyclopedia Britannica
2024年11月3日 · Trees are organized into three major organs: roots, stems, and leaves. All the tree branches and central stem terminate in growing points called shoot apical meristems.
Basic Tree Anatomy: The parts of a tree, and their function
2020年10月12日 · In trees, secondary growth can be seen in the way they add new a ring for each year. The trunk is the stem of a tree. Phloem is the innermost layer of bark. This tissue …