If a plant requires less water then that plant will survive in a drought.
Some plants are extraordinarily tolerant of drought.
Some vegetation requires less water and can tolerate a lack of it.
Some vegetation requires less water and can survive what?
[a] massive damage
[b] enormous damage to homes
[c] Brutal temperatures
[d] Greenhouse gases
[e] If it's dry
[f] prolonged thirst
[g] reduced heat
[h] salinity