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.Kew World Checklist of Selected Plant FamiliesRice, R. (2008). Renanthera of Borneo. Malesian Orchid Journal 1: 71-76.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. Description The following species ordered by sections are recognized by Plants of the World Online :
Image Name Distribution Renanthera annamensis Vietnam Renanthera auyongii Borneo (Sarawak)Renanthera bella Borneo Renanthera breviflora Borneo (Sabah, Sarawak) to Philippines (Sulu Islands) Renanthera caloptera Philippines to Papuasia. Renanthera chanii Borneo (Sabah)Renanthera citrina China (SE. Yunnan)Renanthera coccinea China (SE. Yunnan, SW. Guangxi)Renanthera cornuta Philippines Renanthera dentata Borneo (Sarawak).Renanthera elongata Thailand to W. Malesia and Philippines. Renanthera histrionica Thailand to MalayaRenanthera imschootiana Arunachal Pradesh to China (S. Yunnan) Renanthera isosepala Myanmar to Peninsula Thailand. Renanthera matutina Malesia Renanthera moluccana Sulawesi to Papuasia.Renanthera monachica Philippines (Luzon). Renanthera philippinensis Philippines Renanthera porphyrodesme Sumatera to Sulawesi, Papua New Guinea. Renanthera pulchella Myanmar Renanthera storiei Philippines. Renanthera vietnamensis Vietnam
Cultivation Species in this genus usually require an intermediate to hot climate with good air movement and generally bright light. Their scrambling style of growth means they are best grown on a hanging mount or basket. If they are grown in pots there must be excellent drainage.
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