Cascuta is not the ex of host plants.
cascuta is common ex of parasatic plants.
the plant on which we feed is called host.

How Cuscuta is an Example of Host Plant
Cuscuta, commonly known as dodder, is a parasitic plant that lacks chlorophyll and relies on host plants for nutrients. It wraps itself around the host plant, penetrating its stem to extract water and nutrients. Here's how cuscuta serves as an example of a host plant:

Parasitic Relationship
- Cuscuta establishes a parasitic relationship with its host plant by attaching itself to its stem and extracting essential nutrients.
- The host plant suffers from reduced growth and weakened defense mechanisms due to the drain on its resources by the cuscuta.

Physical Interaction
- Cuscuta forms haustoria, specialized structures that penetrate the host plant's vascular system to extract nutrients.
- This physical interaction between cuscuta and the host plant demonstrates how cuscuta functions as a host plant.

Impact on Host Plant
- The presence of cuscuta can significantly reduce the host plant's vigor and reproductive success.
- The host plant may exhibit symptoms of wilting, stunted growth, and even death in severe cases of infestation.

Resource Drain
- Cuscuta relies entirely on the host plant for its survival, absorbing water and nutrients through its haustoria.
- This resource drain on the host plant further exemplifies cuscuta's role as a host plant in the parasitic relationship.
In conclusion, cuscuta exemplifies a host plant through its parasitic relationship with other plants, physical interaction via haustoria, negative impact on the host plant's health, and the drain on the host plant's resources for sustenance.