Cyperus flavoculmis

{{Short description|Species of plant in Cyperaceae family endemic to Kenya}}

{{speciesbox

|genus = Cyperus

|species = flavoculmis

|authority = Lye

|}}

Cyperus flavoculmis is a species of sedge that is endemic to an area of Kenya.{{cite web|url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:901831-1|title=Cyperus flavoculmis Lye|accessdate=3 April 2021|publisher=Kew Science - Plants of the World Online}}

The species was first formally described by the botanist Kåre Arnstein Lye in 1983.