- Remaining on a tree after maturity and opening to release seeds only after exposure to certain conditions, especially heat from a fire. Used of the cones of gymnosperms.
- Being a species having such cones: serotinous pines.
Origin of serotinousLatin sērōtinus coming late from sērō at a late hour from sērus late
- (of conifer cones) Requiring the heat of a wildfire to open, in order to disperse its seed.
- Appearing or blossoming later in the season than is customary with allied species.
Latin serotinus, from serus late.