It is a modified axillary bud, which is stiffened and terminates in a sharp point. It may be simple or branched.

These leaves are heart-shaped having a petiole or stem attached to the cleft of the leave.

It is defined as darkening of plant tissues, including leaf margins and tips, and yellowing of veins which may cause to abscission of the leaf.

These leaves are divided twicely. Each single leaflet is known as pinnule. The pinnules present over the secondary vein are known as pinna as in Albizia.

Its common name is Yam. These are perennial herbaceous vines being potentially cultivated for the consumption of their starchy tubers.

These are the modified plant structures adapted to store nutrients. They help the plants to survive in adverse climatic conditions. They are also the means of asexual reproduction in plants.

These leaves are saw-toothed with asymmetrical teeth reaching forward. These leaves are present in Urtica.

These fruits may be either dry or fleshy, and originate from the ripening of a simple or compound ovary in a flower having one pistil only, e.g. Banana,apple etc.

It is a type of simple, dry fruit which is consisted of two or more carpel. It is mainly dehiscent, e.g. Poppy, Lily, etc.

These leaves are thick, broad & arrowhead-shaped.

It is a type of modified legume that breaks apart at limitations taking place between the segments of the seeds. It is a dehiscent.

It is a type of fruit in which a compressed wing of fibrous, soft tissue develops from the ovary wall. It is a simple dry fruit and indehiscent. It is a winged achene, e.g. Maple, Ash, etc.

It is defined as an array of leaves or flowers, or of the vascular tissues providing these organs with essential nutrients.

It is either a hair or bristle-like protuberance on a larger structure, or in the case of the Asteraceae, a stiff needle-like element of the pappus. These are characteristics of grasses.

It is a branched group of flowers in which the branches are racemes. It is a much-branched indeterminate inflorescence.

These are the biennial or herbaceous plant whose buds survive a harsh period, such as winter, e.g. Sweet flag.

It is a phytomorphological term used to describe a part of the spikelet of grasses. It is the lowermost of two chaff-like foliole surrounding the grass floret.

These roots are present in parasitic plants.The aerial roots get fixed to the host plant via a sticky attachment disc before introducing into the tissues of the host, e.g. Mistletoe.

It is the process used in identifying plants describing the pattern of branching. Divaricate branching is roughly horizontal, usually only diverging about 15 degrees upward or downward.

It is a tissue that has replaced the epidermis in roots and in stems of submerged aquatic plants.

It is defined as the part of root system from which a stem arises. It affects the plant growth and physiology in different ways.

These are large roots on all sides of a shallow rooted tree. Classically they are found in nutrient-poor rainforest soils and do not go deeper in the layers of earth.

These roots grow downward from lateral branches in the soil. They are adventitious support roots, which are prominent in mangroves.

This plant hormone controls growth and regulates developmental processes, like stem elongation, sex expression, enzyme induction, etc.

These roots expand radially and contract longitudinally within the soil. They have a wrinkled surface, e.g. Dandelion.