Renanthera

{{Short description|Genus of orchids}}

{{Automatic taxobox

| image = Renanthera_coccinea_(1830).jpg

| image_caption = Renanthera coccinea
1830 illustrationWilliam Jackson Hooker (1785—1865) del. - "Curtis's botanical magazine" vol. 57 (N. S. 4) pl. 2997

| display_parents = 3

| taxon = Renanthera

| authority = Lour. (1790)

| subdivision_ranks = Species

| subdivision_ref =

| subdivision =

• Renanthera annamensis
• Renanthera auyongii
• Renanthera bella
• Renanthera breviflora
• Renanthera caloptera
• Renanthera chanii
• Renanthera citrina
• Renanthera coccinea
• Renanthera cornuta
• Renanthera dentata
• Renanthera elongata
• Renanthera histrionica
• Renanthera imschootiana
• Renanthera isosepala
• Renanthera matutina
• Renanthera moluccana
• Renanthera monachica
• Renanthera philippinensis
• Renanthera porphyrodesme
• Renanthera pulchella
• Renanthera storiei
• Renanthera vietnamensis

| synonyms_ref =

| synonyms =

• Ascoglossum Schltr.
• Nephranthera Hassk.
• Porphyrodesme Schltr.
• Renantherella Ridl.

}}

Renanthera, abbreviated as Ren in horticultural trade, is a genus of large scrambling monopodial epiphytic and terrestrial species of orchid found in China, the Himalayas, Southeast Asia, New Guinea, and Melanesia.[http://apps.kew.org/wcsp/namedetail.do?name_id=177305 Kew World Checklist of Selected Plant Families]Rice, R. (2008). Renanthera of Borneo. Malesian Orchid Journal 1: 71-76.[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=128139 Flora of China v 25 p 451, 火焰兰属 huo yan lan shu, Renanthera Loureiro, Fl. Cochinch. 2: 516, 521. 1790. ]

Species in this genus produce a branched inflorescence containing numerous flowers ranging in color from yellow and orange to red. These flowers possess large lateral sepals.