Dodder (Amar bel) is a plant parasite, which is essentially leafless and derives its food from the host plant. It is a vine-like parasitic plant that has special sucking roots known as haustoria. These roots absorb nutrients from the host plant. Dodder attaches itself to the host plant with the help of its special roots. Once it has wrapped itself around the host plant, it loses its root system. It then obtains all the nutrient requirements from the host plant.