The question is asking you to identify a plant family based on its floral formula: K(5) C(5) A(5) G(2). Let's break down the components of this formula and identify which family it corresponds to:
- Floral Formula Explanation:
- K(5): This indicates the calyx (sepals) are in a group of 5.
- C(5): This denotes the corolla (petals) are also in a group of 5.
- A(5): The androecium (stamens) consists of 5 stamens.
- G(2): The gynoecium (carpels) has 2 fused carpels, which is represented by a superior ovary.
- Solanaceae Family Characteristics:
- The Solanaceae family, commonly known as the nightshade family, is characterized by having a flower with sepals and petals in fives, androecium typically with five stamens, and a bicarpellary (two carpels) gynoecium which is syn-carpous.
- Comparison with Other Families:
- Liliaceae: Typically have different floral structures, usually with tepals rather than distinct sepals and petals.
- Asteraceae: Characterized by composite flowers, often with numerous florets, not typically having groups of 5 like in the floral formula presented.
- Fabaceae: Generally have a keel, wings, and standard petal arrangement, differing significantly from the formula given.
By comparing the floral formula with the characteristics of the given families, it is evident that the floral formula K(5) C(5) A(5) G(2) aligns with the Solanaceae family.