Halgania cyanea, commonly known as rough halgania,[1] is a species of flowering plant in the family Boraginaceae. It is a small perennial shrub with dull green leaves, bright blue flowers and is endemic to Australia.
Halgania cyanea is a small, usually dense perennial, growing up to high and a spreading habit up to wide. The dull green leaves are narrow elliptic or linear shaped, long and wide, flattened, glandular hairs on the upper surface, toothed edges and almost sessile. The bright blue or rarely white flowers in diameter, usually singly or up to 3 in a cluster in a terminal inflorescence on a pedicel long, calyx long, lobes narrow-triangular or lance-shaped, equal in size. It mostly flowers in summer or sporadically throughout the year. The fruit is a brown drupe containing one or two seed.[1] [2] [3]
Halgania cyanea was first formally described in 1840 by John Lindley and the description was published in A Sketch of the Vegetation of the Swan River Colony.[4] [5] The specific epithet (cyanea) means "dark blue".[6]
Rough halgania occurs in a wide range of situations including sandy loam, sand plains, mallee and sand dunes in Western Australia, South Australia, Victoria and the Northern Territory, but is restricted to mallee communities in New South Wales.[7] [8]