Lachnostachys (common name Lambs tails) is a genus of flowering plants in the mint family, Lamiaceae, first described in 1842 by William Jackson Hooker. The type species is Lachnostachys ferruginea. The genus name, Lachnostachys, comes from two Greek words/roots, lachnề ('wool') and -stachys ('relating to a spike'), and thus describes the genus as having spiked woolly inflorescences.The entire genus is endemic to Western AustraliaA 2009 study of Chloantheae indicates that Lachnostachys is closely ...