Definition
'Alnus incana' is the scientific name for the grey (or gray) alder. Itβs a deciduous tree thatβs native to colder regions of the Northern Hemisphere. It is recognized for its smooth, grey bark. Unlike its cousin, *Alnus glutinosa*, its leaves are not sticky. 'Incana' means 'grey' or 'hoary' in Latin. This species is important for preventing soil erosion.