Drosera hamiltonii is a species that is endemic to the southern coast of Western Australia. It inhabits waterlogged substrates in the swamps that straddle the coast. The species grows a rosette of thin broad leaves that lie flat on the ground, attaining a vibrant red coloration in good sun. It is distinguishable from other Australian species in the way its leaves seem to ‘roll out’ as they unfurl. Its pink flowers are completely unique within the genus for having fused styles. For this reason, the species is elevated to its own subgenus – Drosera subg. Stelogyne.