They are closely related to the growing environment regarding to the rhizome with remnant stem scars, adventitious roots, taproot shrink wrinkles, and fibrous roots.

• 人参的根茎及残茎痕、不定根、主根的收缩纹和须根分布形态等与环境和生长年限的关系尤为密切，但各种性状之间存在着变异的规律性和相关性。