✔ 最佳答案
根據日本人村主康瑞先生於2003.9.30在北京植物園主講的關於仙人掌類植物的講座內容:
一般的仙人掌在種植方法合適的情況下能有50-300年的壽命。
有些仙人掌類每年只開一、二層花,所以可以通過看花座來推斷植株的年齡。
資料來源
http://www.cacties.com/hjcactus3-57.html
另外有一則英文資料取自:
http://www.madsci.org/posts/archives/apr2000/955766515.Bt.r.html
Cactus are usually considered rather long-lived perennials. ........
Average age would be difficult to measure because it would likely be a lifetime project
for a person, possibly even beyond a human lifetime.
The saguaro (Carnegiea gigantea) often lives over 150 years (Keasey, 1981).
One 44-foot tall saguaro was estimated to be over 300 years old (Hazen-Hammond,
1996). Its average age has probably decreased due to human destruction of its
habitat and vandalism