(bound form) pronunciation used in specific plant names such as 芥蓝 gài​lán (Chinese broccoli) or 芥菜 gài​cài (leaf mustard)

(bound form) orchid; refers to several varieties of fragrant plants like 兰花 lán​huā, 兰草 lán​cǎo, and 木兰 mù​lán