On the street of Wuzhou, Guangxi, a vendor is selling a plant like hay. The vendor introduced the plant called desert rose to the guests. It is easy to feed, turns green after soaking in water for four to six hours, and produces beautiful flowers after three to five days. Flowers are shaped like roses, so they are named desert roses. Later, it was proved that desert rose is actually a fern called Selaginella, which is very drought-tolerant. In the dry season, it will turn yellow and wilt, just like hay. When the water supply is sufficient, the branches and leaves will stretch and turn green again, so it is also called "rejuvenation grass", but it can't actually bloom.
Ordinary roses cannot survive in the desert.
Strictly speaking, the desert rose I said can only grow near the desert, because its origin is close to the desert, so it is called desert rose. It can't survive in a desert where nothing grows.