Koyamaea

{{Short description|Genus of plants}}

{{Speciesbox

| image =

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| genus = Koyamaea

| parent_authority = W.W.Thomas & G.Davidse

| species = neblinensis

| authority = W.W.Thomas & G.Davidse

}}

Koyamaea is a monotypic genus of flowering plants belonging to the family Cyperaceae.{{cite web |title=Koyamaea W.W.Thomas & G.Davidse {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:925195-1 |website=Plants of the World Online |access-date=27 May 2021 |language=en}} The only species is Koyamaea neblinensis {{small|W.W.Thomas & G.Davidse}}.{{cite web |title=Koyamaea neblinensis W.W.Thomas & G.Davidse {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:279234-2 |website=Plants of the World Online |access-date=10 October 2021 |language=en}}

Its native range is southern Venezuela and northern Brazil.

It grows in habitats that are steep, rocky hillside with scattered shrubs and tree that are no more than 2-3m tall and the surrounding vegetation mainly consisting of bromeliads. It grows at altitudes of {{convert|500|-|700|m}} above sea level.{{cite journal |last1=Thomas |first1=Wm. Wayt |last2=Davidse |first2=Gerrit |title=Koyamaea neblinensis, a New Genus and Species of Cyperaceae (Sclerioideae) from Cerro de la Neblina, Venezuela and Brazil |url=https://www.jstor.org/stable/2418905 |journal=Systematic Botany |access-date=10 October 2021 |pages=189–196 |doi=10.2307/2418905 |date=1989|volume=14 |issue=2 |jstor=2418905 |url-access=subscription }}

The genus name of Koyamaea is in honour of Tetsuo Michael Koyama (b. 1933), a Japanese botanist at the New York Botanical Garden and also specialist in Cyperaceae.{{cite book | last=Burkhardt | first=Lotte | title=Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition |trans-title=Index of Eponymic Plant Names – Extended Edition | publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin | year=2018 | isbn=978-3-946292-26-5 | url=https://doi.org/10.3372/epolist2018 |format=pdf |language=German |location=Berlin | doi=10.3372/epolist2018 | s2cid=187926901 |access-date=1 January 2021}} The Latin specific epithet of neblinensis refers to Cerro de la Neblina or Sierra de la Neblina . Both species and genus were first described and published in Syst. Bot. Vol.14 on page 189 in 1989.