In this question, we are asked to identify which plant exhibits solitary cymose inflorescence. Cymose inflorescence refers to a type of flower arrangement where the main stem ends in a flower and no further branches develop from it. Solitary cymose inflorescence means that only one flower is present at the end of the stem.
Out of the given options, the correct answer is option 4 - Gardenia. Gardenia typically has solitary cymose inflorescence, meaning that each stem ends in a single flower without any further branching.
Alert - correct answer should be option 1 - Rose. Rose also exhibits solitary cymose inflorescence, with each stem ending in a single flower without any further branching.