To solve the problem, we need to determine the plant family to which the dodder plant (Cuscuta) belongs.
1. Understanding Cuscuta:
Cuscuta is a parasitic plant, commonly known as dodder. It is a leafless plant that derives nutrients from the host plant through structures called haustoria.
2. Taxonomic Classification:
- Genus: Cuscuta
- Family: Convolvulaceae
Cuscuta is classified under the family Convolvulaceae, which also includes other twining herbs and climbers.
3. Misleading Options:
- Malvaceae: Includes plants like cotton and hibiscus.
- Rutaceae: Includes citrus plants.
- Rubiaceae: Includes coffee and gardenia plants.
- Only Convolvulaceae is the correct family for Cuscuta.
Final Answer:
Dodder plant (Cuscuta) belongs to the \( {\text{Convolvulaceae}} \) family.