Question

The arrangement of leaves on the stem of a plant is called ___.

Answer 1

Nodes of stem:

1. Regions of stem where leaves and buds originate are called nodes.
2. Arrangement of leaves originating from single or different nodes of stem is called the phyllotaxy.
3. Alternate, opposite and whorled arrangement of leaves are the three types of phyllotaxy.
4. Leaves originating in an alternate arrangement from each node form the alternate phyllotaxy.
5. Two leaves originating from a single node depict opposite phyllotaxy while multiple leaves from a single node show the whorled arrangement.

Final Answer: The arrangement of leaves on the stem of a plant is called phyllotaxy.