White, July, October--November; possibly pollinated by Eastern Spinebill Acanthorhynchus tenuirostris (Cohn 1992).
Habitat Rock ledges, moist gullies, cliff overhangs.
Altitude 800--1000 m
Annual rainfall 1100--1400 mm
Typical local abundance Rare.
Vegetation Warm rainforest margin e.g. with Todea barbara, GBleichenia rupestris, Bauera rubioides, Blechnum wattsii, Cyathea australis, Epacris longiflora (Cohn c. 1992); rainforest e.g. Ceratopetalum, Sassafras; scrub.
Substrate Skeletal sandy soils from Narrabeen Sandstone, among sheltered damp rocks, low nutrients.
Exposure Sheltered sites, mid--deep shade.