Draba weberi may be Colorado’s rarest plant. This diminutive member of the mustard family is known only from a single occurrence of less than 100 individuals in Summit County. The single small population has persisted since at least the late 1960’s, but no other populations have yet been located. Although little is known about the species, it is believed to reproduce through a form of apomixis in which seeds are formed without fertilization and carry only maternal genes.
It is the little things in biodiversity that matter (photo by Jill Handwerk)