Lavandula buchii is a species of flowering plant in the family Lamiaceae, endemic to Tenerife in the Canary Islands. It was first described by Philip Barker-Webb and Sabin Berthelot, as part of an 1844–1850 publication that has been dated to 1844.
Lavandula buchii is a woody shrub growing up to 1 metre high.[1] Inflorescences are long, branched, ovate bracts, calyx hairy with violet veins; the corolla blue-violet. Leaves are pinnate and sometimes bipinnate, with somewhat fleshy, greyish leaflets.[2]