鹤望兰（Strelitzia reginae），又称天堂鸟或极乐鸟花，是原产南非的一种单子叶植物。它们学名是为纪念英王乔治三世王妃夏洛特皇后而取的。

鹤望兰可以生长达2米高，有大而壮的叶子，长25-70厘米及阔10-30厘米，叶柄长达1米。叶子常绿及分成两排，呈扇形。花朵在长的茎端上长出。肉穗花序硬及像鸟喙，由于垂直于茎，仿佛一个鸟头。它足以支撑在花朵上吃花蜜的太阳鸟科。花朵有三块鲜艳橙色的萼片，及三块紫蓝色的瓣。其中两瓣是联合的，形成像箭的蜜管。当太阳鸟科坐在上面吃花蜜时，花瓣会张开，并将花粉盖在鸟脚上。

Strelitzia reginae is a monocotyledonous flowering plant indigenous to South Africa (the Cape Provinces and KwaZulu-Natal). Common names include strelitzia, crane flower or bird of paradise, though these names are also collectively applied to other species in the genus Strelitzia. Its scientific name commemorates the British queen C******te of Mecklenburg-Strelitz. The species is native to South Africa but naturalized in Mexico, Belize, Bangladesh, Madeira Islands and Juan Fernández Islands off the coast of Chile.