The grow progress of bulb is divided to 5 stages: probulb idiophase, probulb enlargement stage, primarybulb idiophase, bulb weight fast gain stage and bulb plenum stage.

地下鳞茎由生鳞茎和侧生鳞茎两部分组成，其生长发育可划分为5个阶段：生鳞茎分、生鳞茎膨大、侧生鳞茎形成、鳞茎快速膨大、鳞茎充实。