The species is a robust rhizomatous perennial herb growing up to 50 cm high.

Some 20–50 white to pinkish flowers are produced in an umbel borne on a 12–35 cm stem.

[1] The species was originally known only from the type specimen collected in 1899 near the Jenolan Caves, west of Sydney.

It was subsequently thought to be extinct until two adjacent populations were discovered in the 1980s along the banks of the Boyd River in Kanangra-Boyd National Park in the Central Tablelands district of New South Wales, where the plants grow on flat or gently sloping ground in the riparian zone.

The main threat comes from human activities, as well as, potentially, inappropriate fire regimes and disturbance by feral pigs.