The patterns of arrangement of leaves on the stem are called Phyllotaxy. There are three types of Phyllotaxy
- An alternate type of phyllotaxy – When only a single leaf develops at each node alternatively
- Opposite phyllotaxy – When a pair of leaves develops at each node opposite to each other.
Example: Guava plants
- Whorled phyllotaxy – When more than two leaves develop at the nodes to form a whorl of leaves.
Examples – Kaner, sunflower Tulsi plants.