Vegetation in hot deserts

Question 1

Great basin sagebrush

Answer 1

Tap roots up to 25m long and small needle like leaves to reduce water loss

Question 2

Giant saguaro cactus

Answer 2

Rots are very close to the surface so that it can soak up water before it evaporates. It’s outside ski is pleated so that it can expand when water is soaked up. (Grows very slowly).

Question 3

Joshua tree

Answer 3

Needle like leaves coated in a waxy resin to recuse transpiration.