紅淡比屬常綠喬木，臺灣特有變種，分佈臺灣北部低、中海拔山區。革質倒卵形葉片互生，新葉橘紅色。花單生或2~4朵叢生於葉腋，白色花瓣5枚，有特殊氣味。漿果成熟黑色。開花冬季，結果春季。

An evergreen tree in the genus Cleyera, an endemic plant variation to Taiwan, distributed in the low and middle-altitude mountainous areas in northern Taiwan. Leathery obovate foliage arranges alternately. New foliage is reddish orange. Axillary flowers grow solitarily or in a cluster of two to four, 5 white petals, with a special scent. Berries are ripe black. Flowering in winter and fruiting in spring.

全日照至半日照環境，幼樹耐陰性強。介質以肥沃的壤土為宜，每季施用一次長效性肥料。冬季可以修剪過密、不良枝以及破壞樹形的枝條。繁殖採用播種、扦插、空中壓條法。

Full sun to partial shade environment, saplings are shade tolerant. Require fertile loam for cultivation; apply long-active fertilizers once every season. Prune crowded, defective and shaggy branches to maintain the shape. Propagated by seeding, cuttings, and air layering.

葉片光潔、枝葉茂密，生長強健少病蟲害，是優良的行道樹與綠籬樹種。本樹具有較強的耐陰性，適合作為建築物旁、中庭、天井、樹蔭等日照不足的地點綠化使用。萌芽力強耐修剪，作為綠籬有良好的阻隔與隔音、隔熱效果。

It’s an excellent street tree and green hedgerows, thanks to its glossy foliage and dense clown, vigorous and healthy growth as well as resistance to pest infestation. The tree is highly shade-tolerant and suitable for greening in places with insufficient sunlight such as buildings, atriums, patios and so on. With strong germination nature, it’s resilient to pruning so could serve as a hedge to form a barrier as well as to reduce noise and heat.