Rauvolfia sandwicensis
Introduction '''''Rauvolfia sandwicensis''''', the '''devil's-pepper''', also known as '''''hao''''' in the Hawaiian language, is a species of flowering plant in the milkweed family, Apocynaceae, that is endemic to Hawaii. It is a shrub, a small tree reaching  in height, or, rarely, a medium-sized tree up to  tall with a trunk diameter of . ''Hao'' inhabits coastal mesic and mixed mesic forests at elevations of .
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