这就是凤尾兰(Yucca schidigera)，它们通过地下根茎进行无性繁殖。同一根茎上长出的茎杆的基因是完全相同的。
This is the Mojave yucca (yucca schidigera), a plant that clones itself by sending out underground rhizomes that sprout into genetically identical stalks.
这种根茎长于地下——但它实际上是一种茎，不是根！
A rhizome is found underground - but it's actually a stem, not a root!
许多野草有不断深长的根，带块茎与根茎。
Many weeds are deep-rooted perennials with tubers and rootstocks.
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