Marsdenia
Milk Vines
20 species in Aust. (18 endemic); all states and territories except Tas.
Twiners or small erect shrubs. Leaves with some glands at the base of the lamina. Flowers fragrant, axillary, in simple or compound umbels. Corolla white to yellowish or greenish; the tube short; the limb spreading. Corona of 5 compressed segments, adnate to the base of the anthers; the upper end erect, free. Pollinia oblong, erect. Fruit of 1–2 turgid follicles.