9. Any of several terrestrial, saprophytic, chiefly New World orchids of the genus Corallorhiza having yellowish-green to purplish-brown leafless stems and small flowers.

• 珊瑚根茎兰一种珊瑚根茎兰属的陆地腐生兰科植物，主要产于西半球，茎呈黄绿色至紫褐色，无叶，开有小花收藏指正