Thorncroftia (whistlesweets) is a genus of flowering plants in the mint family, Lamiaceae, first described as a genus in 1912. It is native to southern Africa.SpeciesThorncroftia coddii Changwe & K.Balkwill – South Africa Thorncroftia greenii Changwe & K.Balkwill – South Africa Thorncroftia longiflora N.E.Br – Eswatini, South Africa (Mpumalanga) Thorncroftia lotteri T.J.Edwards & McMurtry – South Africa (Mpumalanga) Thorncroftia media Codd – South Africa Thorncroftia malolotjaensis K.Balkwill – Eswatini Thorncroftia succulenta (R.A.Dyer & E.A.Bruce) Codd – South Africa (Limpopo) Thorncroftia thorncroftii (S.Moore) Codd – Eswatini, South Africa