Mallee is the growth habit of certain eucalypt species that grow with multiple stems springing from an underground lignotuber, usually to a height of no more than . It is most common in plants of the genus Eucalyptus, many of which naturally grow in a mallee habit, and some of which grow as single-stemmed trees initially but recover in mallee form if burnt to the ground by bushfire. It also occurs in the closely related genera Corymbia and Angophora. The word mallee may also be used as a noun in reference to species or individual plants with a mallee habit.