Question

If the leaves are borne on either side of the same node, then the phyllotaxy is said to be _________.

• A. Opposite
• B. Alternate
• C. Whorled
• D. None of the above

Answer 1

The correct option is A Opposite

• If two leaves arise on each node opposite to each other; this arrangement is called opposite phyllotaxy and is seen in leaves of plants like Guava and Jasmine.
• If one leaf arises from one node and next leaf arises at successive node in opposite direction; this arrangement is called alternative phyllotaxy and seen in leaves of plants like mint, peepal and china rose.
• If more than one leaf is arranged at one node arranged in a whorl; this arrangement is called whorled phyllotaxy and seen in leaves of plant like oleander (Nerium).
• Thus, Option A is correct, Leaves borne on either side of the same node exhibit opposite phyllotaxy.