块茎

塊莖
kuàijīng
(botany) a (stem) tuber

CEDICT

  1. (botany) tuber (fleshy underground stem)
  2. tuber (fleshy underground stem)

Wiktionary

地下茎呈块状者，如马铃薯、菊芋等。可分割成数块，供繁殖新个体使用。

重編國語辭典

Entry Composition

1 块 kuài
  1. lump; chunk; piece
  2. classifier for pieces of cloth, cake, soap etc
  3. (coll.) classifier for money and currency units
2 茎 jīng
  1. stalk
  2. stem

classifier: 條