What is flower?

A flower is the reproductive structure of a flowering plant (angiosperm). It is specially designed for sexual reproduction, helping in the formation of seeds and fruits. Flowers are often colorful and fragrant to attract pollinators like insects, birds, and wind.

Detailed Description of a Flower

1. General Structure

A typical flower is borne on a stalk called the pedicel and has a swollen tip known as the thalamus (receptacle). The floral organs are arranged in concentric circles called whorls.

2. Four Main Parts (Whorls)

 (a) Calyx (Sepals)

• Outermost whorl
• Usually green in color
• Protects the flower in bud stage

 (b) Corolla (Petals)

• Brightly colored
• Attracts pollinators
• May have scent and nectar

♂️ (c) Androecium (Male Part)

• Composed of stamens
• Each stamen has:
  • Anther (produces pollen grains)
  • Filament (supports anther)

♀️ (d) Gynoecium (Female Part)

• Composed of carpels/pistil
• Main parts:
  • Stigma (receives pollen)
  • Style (connects stigma to ovary)
  • Ovary (contains ovules → seeds after fertilization)

Types of Flowers

• Bisexual Flower: Contains both male and female parts
  (e.g., Hibiscus, mustard)

• Unisexual Flower: Contains either male or female part
  (e.g., papaya, maize)

Diagrammatic image of a flower 

A bisexual flower 

Explanation of Diagram

• Sepals – outer protective layer
• Petals – attract pollinators
• Stamens (Androecium) – male reproductive organ
• Pistil/Carpel (Gynoecium) – female reproductive organ
• Ovary – contains ovules
• Style & Stigma – pathway and landing surface for pollen

Functions of a Flower

1. Reproduction – Produces gametes and enables fertilization
2. Attraction – Uses color, scent, nectar to attract pollinators
3. Seed Formation – Ovules develop into seeds
4. Fruit Formation – Ovary develops into fruit after fertilization.
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A flower is a highly specialized reproductive organ of plants, structurally organized into four whorls, and plays a vital role in plant reproduction, genetic diversity, and survival.

If you want, I can also provide a simple hand-drawn style diagram for exam writing or a labeled Assamese explanation.