Sexual Reproduction in Plants

A flower that has both androecium (male part) and gynoecium (female part) in the same flower is called a bisexual flower.
Example: Hibiscus

A flower that has only one reproductive whorl (either androecium or gynoecium) is called a unisexual flower.

• If it has only androecium: male flower
• If it has only gynoecium: female flower
  Example: Papaya

A flower that has a stalk called pedicel for support is called a pedicellate flower.

• Flower is the main reproductive organ in plants, made up of four whorls—calyx, corolla, androecium, and gynoecium.
• Essential whorls: Androecium (male) and Gynoecium (female);
  Accessory whorls: Calyx (sepals) and Corolla (petals).
• Bisexual flowers have both androecium and gynoecium (e.g., Hibiscus);
  Unisexual flowers have only one (e.g., Papaya).
• Gynoecium contains carpels with ovary, style, and stigma;
  Ovary has ovules, which form the embryo sac by meiosis.