Introduction to the Cymbidium goeringii cultivar Donghai Dragon King (Zhoushan Dragon Plum) Orchids Jan 1, 1970 0 views Donghai Dragon King (Zhoushan Dragon Plum or Gaodao Plum) is a very unusual "floating-door" type of Cymbidium goeringii (narcissus-flowered orchid). Donghai Dragon King (Zhoushan Dragon Plum or Gaodao Plum) is a very unusual "floating-door" type of Cymbidium goeringii (narcissus-flowered orchid).