Sannantha cunninghamii is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to eastern New South Wales. It is a shrub with round to broadly elliptic leaves with irregular edges, and white flowers arranged singly, in pairs or groups of three in leaf axils.
Sannantha cunninghamii is a shrub that typically grows to a height of up to, its young stems grey or reddish. Its leaves are round to broadly elliptic, long and wide on a petiole long. The edges of the leaves are irregularly toothed or lobed. The flowers are up to in diameter and arranged singly, in pairs, or groups of three in leaf axils on a peduncle long. Each flower is on a pedicel long with 2 to 4 bracteoles at the base, but that fall off as the flowers develop. The floral tube is long, the sepal lobes long and thin. The petals are white, long and there are 6 to 9 stamens. Flowering occurs from September to December and the fruit is a hemispherical capsule in diameter.[1] [2]
This species was first formally described in 1843 by Johannes Schauer who gave it the name Harmogia cunninghamii in Walpers' book Repertorium Botanices Systematicae.[3] [4] In 2007, Peter Gordon Wilson transferred the species to Sannantha as S. cunninghamii in Australian Systematic Botany.[5]
This species of sannantha grows in forest and shrubby woodland between the Pilliga Scrub the Hunter Valley and the Cowra district in eastern inland New South Wales.