Picochlorum oklahomense is a species of coccoid chlorophyte algae, the type species of its genus.

It is broadly halotolerant, small, asexual and lacks chlorophyll b.

[1] The author of the name spelt the specific epithet "oklahomensis".

AlgaeBase corrects this to the neuter form oklahomense, to agree with the genus name.

This green algae-related article is a stub.