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 yellowish or reddish. Usually parasitic on herbs Convolvulaceae
Leafy plants
Calyx tubular, 5-toothed. Plants from saline areas Wilsonia
Plants glabrous or nearly so, often forming dense dark green mats. Leaves linear to narrow-oblong, 6–15 mm long. Calyx 5–8 mm long; the teeth much shorter than the tube. Corolla tube slender, exceeding the calyx; the lobes reflexed, white. Stamens and style much exserted. Small procumbent perennial herb. Margins of saltmarshes, e.g. Parramatta River. Vulnerable. Fl. spring–summer Wilsonia backhousei