Write all the parts of leaves.
Answers
Answer:
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Answer:
Each leaf typically has a leaf blade ( lamina ), stipules, a midrib, and a margin.
Some leaves have a petiole, which attaches the leaf to the stem; leaves that do not have petioles are directly attached to the plant stem and are called sessile leaves.
The arrangement of veins in a leaf is called the venation pattern; monocots have parallel venation, while dicots have reticulate venation.
The arrangement of leaves on a stem is known as phyllotaxy; leaves can be classified as either alternate, spiral, opposite, or whorled.
Plants with alternate and spiral leaf arrangements have only one leaf per node.
In an opposite leaf arrangement, two leaves connect at a node. In a whorled arrangement, three or more leaves connect at a node.
Key Terms
petiole: stalk that extends from the stem to the base of the leaf
lamina: the flat part of a leaf; the blade, which is the widest part of the leaf
stipule: small green appendage usually found at the base of the