Tolima Blossomcrown is an attractive hummingbird of the east slope of the Central Andes, in the Magdalena Valley in south central Colombia; this species formerly was considered to be a subspecies of Santa Marta Blossomcrown (A. floriceps) of the Sierra Nevada de Santa Marta of northern Colombia. Both species are small hummingbirds with a relatively short, straight bill. Males have green upperparts, with a buffy white forecrown, bright orange hindcrown, and dull gray underparts. Female blossomcrowns are similar to males but are dull brown on the crown. The most striking plumage difference between the species is in the pattern of the rectrices: the tips of the undersurface of the tail feathers are broadly white in Tolima Blossomcrown, but the pale tips are smaller and tawny in the Santa Marta species. Tolima Blossomcrown occupies the understory of humid montane forest and older second growth; not common, it is threatened by habitat loss.