The innermost whorl of the flower is called the gynoecium. Each member of the carpel is called a carpel.

The third whorl of flowers inside the panicle is called corolla. Each member of the corolla is called Stamen.

The second whorl of flowers inside the corolla is called corolla. Each member of the group is called a Petal. Petals are usually variegated.

The outermost green first stipe of the flower is called the bract. Each member of the bract is called a sepal. Epicalyx is outside the circle.

The axis on which four stanzas of flowers are arranged is called axis.

The modified pips involved in the sexual reproduction of flowering plants are called flowers. The different parts of an ideal flower are-
1. Floral axis: The axis on which four stanzas of flowers are arranged is called Pushpaksha.
2. Calyx: The outermost green first stipe of the flower is called the bract. Each member of the bract is called a sepal. Epicalyx is outside the circle.
3. Corolla: The second whorl of flowers inside the corolla is called corolla. Each member of the group is called a Petal. Petals are usually variegated.
4. Androecium: The third whorl of flowers inside the panicle is called corolla. Each member of the corolla is called Stamen.
5. Gynoecium: The innermost whorl of the flower is called the gynoecium. Each member of the carpel is called a carpel.

A parallel venation that has more than one major vein is called multivenous parallel venation. There are two types of multivenous parallel venation.
Convergent multiveinal parallel veining: In the multiveinal venation in which more than one main vein originates from the base of the leaf blade and joins at the top of the blade is called convergent multiveinal parallel veining. For example, bamboo.
Divergent multiveinal parallel venation: The multiveinal venation in which more than one main vein originates from the base of the leaf blade and spreads to different ends of the blade is called divergent multiveinal parallel venation. For example, rhythm.

A parallel vein that has only one central vein is called Univenous Collateral Venation. For example, bananas.

If the veins of the leaves are arranged parallel without being connected to each other, it is called parallel venation. Monocots have parallel veins. Among dicotyledonous plants, parallel venation is seen in Sultana chapa plants. There are two types of parallel veins.
(i) Monovenous Collateral Venation: A parallel vein that has only one central vein is called Univenous Collateral Venation. For example, bananas.
(ii) Multivenous parallel venation: A parallel venation that has more than one major vein is called multivenous parallel venation. There are two types of multivenous parallel venation.
Convergent multiveinal parallel veining: In the multiveinal venation in which more than one main vein originates from the base of the leaf blade and joins at the top of the blade is called convergent multiveinal parallel veining. For example, bamboo.
Divergent multiveinal parallel venation: The multiveinal venation in which more than one main vein originates from the base of the leaf blade and spreads to different ends of the blade is called divergent multiveinal parallel venation. For example, rhythm.

A reticular venation that has more than one vein like the central vein is called multivenous reticular venation. Polycoccal reticular venation is of two types. These are-
Convergent multiveinal reticulate venation: In the multiveinal venation in which several main veins arise from the base of the leaf blade and meet at the tip of the leaf is called convergent multiveinal reticular venation. For example – kul or plum.
Divergent multiveinal reticulate venation: The multiveinal venation in which more than one main vein originates from the base of the leaf blade and extends to different ends of the leaf is called divergent multiveinal reticular venation. For example, papaya.