Mesomelaena

{{Short description|Genus of grass-like plants}}

{{Automatic taxobox

| image = Mesomelaena stygia imported from iNaturalist photo 289132029 on 6 December 2023.jpg

| image_caption = Mesomelaena stygia

| taxon = Mesomelaena

| authority = Nees

}}

Mesomelaena is a genus of sedges. It has 5 known species, all endemic to Western Australia.{{FloraBase|name= Mesomelaena|id=21123}}[http://apps.kew.org/wcsp/namedetail.do?name_id=254385 Kew World Checklist of Selected Plant Families]Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.Wilson, K. L. 1981. Revision of the genus Mesomelaena (Cyperaceae) Telopea Vol. 2, p 182-195.

Species:

• Mesomelaena graciliceps (C.B.Clarke) K.L.Wilson
• Mesomelaena preissii Nees
• Mesomelaena pseudostygia K.L.Wilson
• Mesomelaena stygia (R.Br.) Nees
• Mesomelaena tetragona (R.Br.) Benth. - Semaphore Sedge