Cacti, 仙人掌

Cacti wait to be displayed during preparations for the RHS Chelsea Flower Show in London, Britain May 21, 2016. (Photo by Neil Hall/Reuters)

A man holds a Parodia Herteri cactus plant as he adjusts a display during preparations for the RHS Chelsea Flower Show in London, Britain May 21, 2016. (Photo by Neil Hall/Reuters)

A display of cacti is displayed during preparations for the RHS Chelsea Flower Show in London, Britain May 21, 2016. (Photo by Neil Hall/Reuters)
Flower Show in London
http://avax.news/fact/Flower_Show_in_London.html