Churnwood

Citronella moorei, known as churnwood, is a small to medium-sized tree in the family Cardiopteridaceae, native to the rainforests of eastern Australia, particularly New South Wales and Queensland. It inhabits subtropical and warm temperate rainforest margins, sheltered gullies, and moist sclerophyll forest understories from sea level to moderate elevations. The tree typically reaches 10–20 meters in height and is recognized by its glossy, alternate leaves with prominent venation and yellowish-green flowers borne in axillary panicles. The fruits are small, fleshy drupes that attract birds, aiding in seed dispersal. Churnwood is classified as Least Concern by the IUCN, reflecting its stable populations within its native range. The species is part of the complex mosaic of Australian rainforest communities that harbor high levels of plant biodiversity and endemic invertebrates. Citronella moorei plays a role in forest succession, often colonizing disturbed margins and regenerating areas. It is occasionally cultivated in Australian native gardens for its ornamental foliage and resilience. The genus Citronella in Cardiopteridaceae is unrelated to citronella grass (Cymbopogon species) despite the shared common name root. Conservation of its habitat is tied to the broader protection of eastern Australian subtropical rainforests, which face ongoing pressures from land clearing and altered fire regimes.