Parts of a Flower

We will discuss here about the different parts of a flower to identify the various parts of a flower. The most attractive organ of a flowering plant is its flower.

Flower is a modified shoot of limited growth that helps in the reproduction of higher plants.

Most flowers remain attached to the stems or the branches with a stick like stalk, called pedicel. The flowers with pedicel are known as pedicellate flower. Flowers of China-rose (Hibiscus), Thorn-apple (Datura) are the examples of pedicellate. But some flowers do not have pedicel. These flowers are called sessile flowers. Tuberose (Polyanthes) is a very common sessile flower.

Flower of Datura (Thom-apple) is a very common complete flower. Now we will discuss here about the structure of the flower of Datura.

Datura flower is a funnel-shaped flower and can be seen in creamish white, pink or light violet colors.

The following parts of Datura flower are given below:

(i) Pedicel: Small green stick-like structure, which holds the flower on the stem, is called pedicel.

(ii) Thalamus: The top of the pedicel forms a flat disc-like structure; this is called thalamus. The thalamus holds all other parts of the flower on it.

(iii) Calyx: The outermost cup-shaped green structure is the calyx. In this flower five green leafy structures unite to form the cup-shaped calyx. These five leafy structures are called sepals.

(iv) Corolla: The whorl of petals next to calyx is known as corolla. In Datura flower corolla may be creamish white, pink or violet in color. This corolla is composed of five petals, which join along their edges to form a funnel shaped structure.

(v) Androecium: Androecium is the third inner whorl of a complete flower. It is composed of five stamens. Each stamen has two parts, the lower portion of it is a fine thread-like filament and the upper portion is an elongated swollen anther. In Datura flower the filaments remain attached to the petals but the anthers remain free. Each anther has two lateral lobes joined side by side. Within anthers numerous pollen grains are stored. These pollen grains are the male reproductive units of a flower.

(vi) Gynoecium or Pistil: The inner most whorl of a complete flower is the gynoecium. The unit of gynoecium is called carpel. Datura flower has two carpels in its gynoecium. The two carpels join together to form a long necked pitcher-shaped structure. The swollen base of it is the ovary, which holds ovules in it. The long tube-like part emerging from the ovary is called style. The apex of the style is slightly swollen and sticky, it is called stigma. Stigma catches the pollen grains during pollination.






Fifth Grade

From Parts of a Flower to HOME PAGE

New! Comments

Have your say about what you just read! Leave me a comment in the box below.


Recent Articles

  1. Respiratory Volumes and Capacities | Tidal Volume | Dead Space

    Aug 29, 25 05:17 PM

    Respiratory Volumes
    Explain respiratory volumes and capacities: Tidal Volume - Tidal volume is the volume of air inspired or expired in relaxed or resting position. Amount of tidal volume is about 500 m and it consists o…

    Read More

  2. Mechanism of Breathing | Definition of Inspiration and Expiration

    Aug 17, 25 11:41 PM

    Pressure in Lungs
    Breathing is the process which is accomplished in three states that is inspiration expiration and pause . Definition of inspiration - Entry of air into the lungs from outside during breathing is calle…

    Read More

  3. Human Respiratory System | External Nares | Nasal Cavity | Pharynx

    Aug 04, 25 03:14 PM

    Lungs
    Definition of respiration - This is the process of making energy available to organisms and their living cells through enzyme controlled catabolic breakdown of organic molecules. The organic materials…

    Read More

  4. Disorders of Digestive System | Symptoms of Jaundice | Vomiting |

    Jul 16, 25 12:18 PM

    Symptoms of Diarrhoea
    Jaundice- It is a disease that occurs due to Umesh discoloration of the skin due to deposition of bilirubin and biliverdin pigment. Jaundice can be offered according to the different position like pre…

    Read More

  5. Absorption of Digested Products | Absorption of Water | Nephrons

    Jul 09, 25 02:24 PM

    Villus
    Food and water is observed in different parts of the body and is distributed in different cells and tissues. Absorption of food is observed to be observed in the small intestine in the specific type o…

    Read More