Howittia trilocularis

A spreading-scrambling woody shrub, to 3 metres tall, to several metres wide. It can form dense patches in some habitats. 

It is native to Victoria, NSW and Queensland, growing as far south as around Bairnsdale in the north-east of Victoria – but then with a large disjunction in western Victoria in the Grampians (south of Horsham). It grows from around Eden in NSW, extending up the coast and coastal inland (fringe of the tablelands), potentially into Queensland as far as Moreton Bay. It was collected in South Australia but has not been seen since around 1880. 

It is often found in moist / wet sclerophyll forest and rainforest edges, usually on enriched soils. 

This species is the only one in the genus and it has simple and alternate leaves, to 12 cm long, and to 8 cm wide, bases often shaped like a heart (cordate) or sometimes lanceolate; hairy with toothed margins.

Flowers are produced solitarily, in leaf axils, with 5 calyx lobes and 5 petals, ranging from lavender through to violet and deep mauve, about 25 mm across and borne on long woolly stems, occurring from September to January.

The fruit is a capsule. In this species, it is rounded or globular-shaped, to 10 mm in diameter and covered with soft, silky or star-shaped (stellate) hairs. The seed capsules mature and open from December to February.