The taproot is a single main root that emerges from the lower end of a plant's stem. It consists of a number of small roots. A taproot is usually straight and thick, with a tapering shape that grows directly downward. Taproots are used in plants such as beans and mustard.

Lamina is a green flat part of a leaf is specialised for photosynthesis. The lamina contains the following parts: (i) Veins - the lines on the green flat part in a leaf that provide support for the leaf and transport both water and food. (ii) Midrib - The central, thick, linear vein that runs along the length of a leaf is called midrib.