地下茎，根茎，块茎：任何其它植物的地下部分，尤指根茎、球茎或块茎等地下茎。

Any of various other underground plant parts, especially an underground stem such as a rhizome, corm, or tuber.

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一种仙人掌类植物，尤指仙人球属和刺仙人掌属，有多刺的茎，成不分支的球状或圆柱状。

Any of several cacti, especially in the genera Ferocactus and Echinocactus, having unbranched, globular to columnar, ribbed spiny stems.

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