Two taxa in the group of rainforest trees known as Rose Walnuts are listed as threatened in New South Wales (NSW).
Endiandra muelleri subsp. bracteata B. Hyland (Green-leaved Rose Walnut) occurs only in NSW and Queensland. Two subspecies of E. muelleri were described by Hyland (1989), the other being named as E. muelleri subsp. muelleri. The common name of Green-leaved Rose Walnut is applied to both subspecies. The taxon now known as E. muelleri subsp. bracteata was described in the Flora of Australia in 1870 as E. pubens var. glabriflora. Other taxonomic changes followed. In the years immediately preceding its description and separation as a subspecies of E. muelleri, it has been treated as a hairy form of that taxon.
Endiandra hayesii Kosterm (Rusty Rose Walnut) is also confined to NSW and Queensland. The Rusty Rose Walnut was described in 1970 from a specimen collected from Minyon Falls (now within Nightcap National Park) in 1957.
