the.com/desert planet
one biome, no notes: a whole world that read the room and gave up on water.
means a fictional planet whose entire climate, ecology, and plot are defined by being uniformly arid, usually sand from pole to pole.
from sci-fi shorthand born from cold-war-era planetary science fantasies, cemented by Frank Herbert's Dune (1965), where Arrakis made scarcity itself the engine of empire, religion, and drugs.
real precedentmars looks the part, minus the sandworms
trope cousinocean planet, ice planet, same lazy climatology
star wars debttatooine borrows arrakis's sand, keeps the moisture farmers
logic problemreal planets rarely have just one biome