Flowers with both androecium and gynoecium are called

 Bisexual flowers

Flowers that contain both androecium (male reproductive part) and gynoecium (female reproductive part) are referred to as bisexual flowers. These flowers are also known as hermaphroditic flowers because they house both reproductive structures, enabling self-pollination or cross-pollination within a single flower.

In contrast, unisexual flowers possess only one type of reproductive organ—either androecium or gynoecium. This means they are either male flowers (staminate) or female flowers (pistillate). Examples of unisexual flowers include papaya and corn.

Explanation of the Terms:

1. Androecium: The male reproductive part of a flower, made up of stamens. Each stamen typically consists of a filament and an anther, where pollen grains are produced.
2. Gynoecium: The female reproductive part of a flower, consisting of one or more carpels. Each carpel includes the ovary (containing ovules), the style, and the stigma, where pollination occurs.

Characteristics of Bisexual Flowers:

• Bisexual flowers facilitate both self-pollination and cross-pollination, enhancing reproductive efficiency.
• They are commonly found in plants such as hibiscus, rose, and mustard.

By having both androecium and gynoecium in the same flower, bisexual flowers play a vital role in the reproduction of flowering plants. This structure ensures the continuation of the plant species with or without the presence of external pollinators.

In summary, flowers with both androecium and gynoecium are called bisexual flowers, a characteristic feature that makes them different from unisexual flowers, which lack one of these reproductive parts.