Adnate stipules occur in

Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils. $(a)$ Cucumber, $(b)$ Peas, $(c)$ Pumpkins, $(d)$ Grapevine, $(e)$ Watermelon.

Rachis is present in

Thorn is a modified branch because

How is pinnately compound leaf different from palmately compound leaf?

Leaves of dicotyledonous plants possess _________ venation, while _________ venation is the characteristic of most monocotyledons