The accumulation quantity of litter of Chinese fir forest and its undergrowth plant at different site indices and forest ages also existed obvious difference.

不同地位指数和不同林龄杉木及其林下植物的凋落物积累量也存在明显差异，杉木凋落物积累量随林龄的增大而增加。

youdao

The clivia path alone (clivia is a forest undergrowth plant found only in South Africa) is practically a national monument.

FORBES: Goin' High-End in South Africa!