Question

Opposite phyllotaxy is present in
A. Banana
B. Calotropis
C. Grass
D. China rose

Answer 1

Hint: Phyllotaxy refers to the arrangement of leaves on the stem, branch of the plant, phyllotactic spirals differ from each other species of the plant forming a distinctive class of pattern of leaves arrangement on the plant. This term was coined by C.bonnet.

Complete answer:
There are three types of phyllotaxy which are spiral, whorled and opposite
In opposite phyllotaxy, the two leaves at every internode or node are consistently inverse of each other. On the off chance that the progressive sets of leaves are put at right edges to each other, the arrangement is named inverse decussate.
For this situation, when looked from the top, all the leaves will be discovered to be orchestrated along four vertical lines. This is found in Calotropis, Gardenia, Ixora, and so on.
In some different plants, it is discovered that the progressive sets are put precisely on the head of each other so all the leaves lie in one plane and when seen from over all the leaves are found to lie in two vertical columns.
This kind of phyllotaxy is known as the opposite phyllotaxy which can be seen in calotropis which is the most appropriate option. So the correct answer to the above question is calotropis.

The correct answer is an option ( B ) that is calotropis.

Note:
 In alternate phyllotaxy, leaves are alternate to each node which is denoted in china rose plant leaf pattern, in whorled phyllotaxy two leaves grow on one node this type of phyllotaxy can be seen in hydrilla and Alstonia.