Photo of a large shrub with pinnately compound leaves & leaflets with crenate margins. There are large, flat-topped clusters of small white flowers. Scott Zona CC BY-NC 2.0.

Lyonothamnus is yet another monotypic genus from western N America. Lyonothamnus floribundus (#Rosaceae #Amygdaloideae) is endemic to the Channel Islands of California. It is not #cyanogenic, which is perhaps the evolutionary consequence of fewer predators on the islands. #CFP #Botany 🌾🧪