DENDROLOGY

Detailed explanation-1: -Monocot plants are marked by seeds with a single cotyledon, parallel-veined leaves, scattered vascular bundles in the stem, the absence of a typical cambium, and an adventitious root system.

Detailed explanation-2: -Leaves of monocot plants show parallel venation and leaves of dicot plants show reticulated venation. However, there are exceptions in monocots like Smilax and Colocasia. They show reticulate venation. Thus, the correct answer is ‘Smilax.

Detailed explanation-3: -Monocot leaves are slender and elongated with parallel veins. Compared to other forms of veins, in parallel venation, the veins are small in size with even smaller veins connecting them. Monocots have flower parts in sets of three. Their roots are fibrous.