Crassula exserta is a herb in the family Crassulaceae that is native to Western Australia.

The succulent annual herb has an erect to decumbent habit and typically grows to a height of 1 to 15 centimetres (0.4 to 5.9 in). It blooms between August and December producing white-yellow-pink-red-brown flowers.

It is commonly found among granite outcrops, around swamps in depressions and around saline mud flats in the Great Southern, Wheatbelt, Mid West and Goldfields-Esperance regions.

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