Threlkeldia diffusa, also known as Coast Bonefruit, is a perennial herb which occurs in coastal areas and saline flats in Australia. It is sometimes prostrate or may grow up to 0.4 metres in height. The green flowers occur between October and November (spring) in its native range.
The flowers are redish-purple with darker spots. A rare and vivid colour. It features 2-3 inch long, pendulous flowers on long spikes in late Spring and Summer.