世间万物的存在，必定有其存在的价值和意义，每一个事物的产生必定有其产生的根源，并非凭空而降。

rhododendron北美杜鹃, 杜鹃花

A rhododendron is etymologically a ‘rose-tree’. The term comes from Greek rhodódendron, a compound formed from rhódon ‘rose’ (apparently a relative of English rose) and déndron ‘tree’ (source of English dendrite and dendrochronology). This denoted the ‘oleander’, an application it retained through Latin rhododendron into English. The first record of its use for the plant we now know as the rhododendron dates from the mid 17th century.

ROSE Rose is a general European term, represented also in French, German, and Danishrose, Italian and Spanish rosa, Dutch roos, Swedish ros, Russian roza, etc. These all go back ultimately to Latin rosa, which was either borrowed from, or came from the same source as Greek rhódon ‘rose’, a word of eastern Mediterranean origin.