Amarbel is the same as a plant called Cuscuta.
For more information see: http://en.wikipedia.org/wiki/Amarbel
Cascuta Reflexa
Cuscuta, commonly known as dodder, is a parasitic plant that lacks chlorophyll and therefore depends on other plants for nutrients. It wraps itself around a host plant and extracts water and nutrients from it. Dodder can weaken or even kill its host plant if left unchecked.
Dodder (Cuscuta) known locally as Amarbel/Akashbel is a parasitic plant that lacks both chlorophyll and leaves. It is a yellow colour climber that attaches itself to the host. It gives out haustoria or the suckers that get attached to the phloem of the host and derive nutrition. Cuscuta does not have roots in the mature condition. It produces bunches of whitish or yellowish bell shaped flowers.
According to botany the parasite live on live plant. when the plant dies parasite also will dies. but the saprophyte though the plant dies it will live.
Non green plants is a term used in the past to describe fungi. Before the Whittaker 5 - kingdom system (1969), There were 4 kingdoms used in classification; bacteria, protists, plants and animals. Fungi were grouped in with plants, but because they lacked chlorophyll, they were referred to as non green plants. Today they are a separate kingdom under Domain Eukarya.