An axil is an angle between the upper side of a leaf and the stem from which it grows. Knowing the location of the axil helps us to locate the parts because, in flowering plants, buds develop in the axils of leaves. These types of buds are known as axillary buds.

Pollination is the transfer of pollen grains from the anther to the stigma of a flower. This can be done by some agents, like wind, air, water, insects, birds, bats etc. Pollination is of two types- Self pollination and cross-pollination.

The arrangement of veins in a leaf is called venation. The venation is of two types- Parallel venation and reticulate venation In parallel venation, the veins run parallel to each other from the base to the tip. This type of venation found in monocotyledonous plants. The reticulate venation, this type of venation found in the dicotyledonous plant.

The stem is normally divided into nodes and internodes. The points or zone on the stem where leaves and buds are borne are known as nodes. The portions of the stem between the two nodes are called an internode.