Renealmia cernua

{{Short description|Species of flowering plant}}

{{speciesbox

|image = 006 renealmia orng.jpg

|image_caption =

|genus = Renealmia

|species = cernua

|authority = (Sw. ex Roem. & Schult.) J.F.Macbr.

|synonyms_ref=

|synonyms= Costus cernuus Sw. ex Roem. & Schult.

}}

Renealmia cernua is a species of plant in the family Zingiberaceae. It was first described in 1931 by James Francis Macbride.{{Cite web |date=2024 |title=Renealmia cernua (Sw. ex Roem. & Schult.) J.F.Macbr. |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:218597-2 |access-date=2024-10-28 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |language=en}} The native range of Renealmia cernua is Southeastern Mexico to Southern Tropical America.

Renealmia cernua typically makes juvenile inflorescences in the beginning of the dry season, and flowers from the late dry season through the rainy season.{{Cite web |date=2024 |title=Renealmia cernua (Sw. ex Roem. & Schult.) J.F.Macbr. |url=https://panamabiota.org/stri/taxa/index.php?taxon=69052&clid=64 |access-date=2024-10-28 |website=Panama Biodiversity Portal |publisher=Smithsonian Tropical Research Institute |language=en}} Fruits mature in the middle to late rainy season.

Like other species of Renealmia, (R.alpinia, R.aromatica, and R.nicolaioides), it is used for treating snakebite in Colombia.{{cite journal |last1=Vasquez |first1=Julieta |last2=Jiménez |first2=Silvia L. |last3=Gómez |first3=Isabel C. |last4=Rey |first4=Jessica P. |last5=Henao |first5=Ana M. |last6=Marín |first6=Daniela M. |last7=Romero |first7=Jefferson O. |last8=Alarcón |first8=Juan C. |title=Snakebites and ethnobotany in the eastern region of Antioquia, Colombia—the traditional use of plants |journal=Journal of Ethnopharmacology |date=2013 |volume=146 |issue=2 |pages=449-455 |doi=10.1016/j.jep.2012.12.043}}