Linum cratericola, the Floreana Flax, is a species of plant in the Linaceae family.

Between 1981 and 1997 it was relatively unseen, but a population of 13 individuals was rediscovered at one of the original locations.

It is endemic to the Galápagos Islands of Ecuador, and is critically endangered.

[2] Since, the population has recovered to 400, after protection against goats and feral donkeys was created using fences.

[3] This Malpighiales article is a stub.