. "*Petalostigma nummularium (Airy Shaw)" . . . . . . "Petalostigma pubescens"@en . . "*Petalostigma quadriloculare var. pubescens (M\u00FCll.Arg.)" . . . "*Petalostigma quadriloculare var. nigrum (Ewart & O.B.Davies)" . . "Petalostigma pubescens, known as the quinine bush is a rainforest tree native to Papua New Guinea, Queensland, Northern Territory, New South Wales, Western Australia. It was first described by the botanist Karel Domin in 1927."@en . .