Vegetative key to the families

ROOTLESS EPIPHYTIC PARASITES.
Stems thread-like, leafless or almost so, forming tangled masses over the host and attached to the host by haustoria
Stems green or with brown scale-leaves. Usually parasitic on shrubs or trees (Cassytha) Lauraceae
Leaves reduced to scales. Rootless twinning hemiparasitic herb Cassytha
Plants pubescent at least when young. Stems comparatively stout. Flowers in short spikes or almost capitate
Stems pubescent, often tuberculate when older. Peduncles and perianth pubescent, ribbed. Floral tube globular at fruiting stage, greenish. Widespread. Heath and open forest. Fl. spring–summer Cassytha pubescens
Stems glabrescent, more stout than in any other species. Peduncles pubescent. Floral tube with a blackish pubescence, globular at fruiting stage. Widespread. Fl. spring Cassytha melantha