Question

If there are more than three leaves at each node, the phyllotaxy is called as

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

Answer 1

Answer: (B)

In an alternate or spiral leaved plants, the leaves are single at each node and borne along the stem alternately in an ascending spiral. In an opposite type of phyllotaxy, a pair of leaves arise at each node and lie opposite to each other. In whorled phyllotaxy, more than three leaves arise from the same level on a stem. A whorl is an arrangement of leaves that radiate from a single point and surround or wrap around the stem. In some species, crowded internodes within the whorls alternate with long internodes between the whorls.

Thus, the correct answer is option C.