Phyllotaxy is the pattern of arrangement of leaves on the stem or branch. This is usually of three types : alternate, opposite and whorled. In alternate type of phyllotaxy, a single leaf arises at each node in alternate manner, as in china rose, mustard and sunflower plants. In opposite type, a pair of leaves arise at each node and lie opposite to each other as in Calotropis and guava plants. If more than two leaves arise at a node and form a whorl, it is called whorled. as in Alstonia.
Different types of phyllotaxy:
(a) Alternate
(b) Opposite
(c) Whorled
