Monostroma kuroshiense, an algae of this genus, is commercially cultivated in East Asia and South America for the edible product "hitoegusa-nori" or "hirohano-hitoegusa nori", popular sushi wraps.

A number of monostromatic algal species have been removed from this genus, including Kornmannia, Ulvopsis and Capsosiphon.

[7] Patterns of seasonal fluctuations in its thallus lengths were habitat specific and recur annually.

[9] Type of life cycle is not a valid diagnostic character for the species circumscription in Monostromataceae[10] Gametogenesis in this alga occurs in discontinuous patches along the frontal apex and the gametes release synchronously in a posterior faced linear fashion by the dehiscence of gametangial sheath, leading to the thallic disintegration.

In Japan, dried Monostroma kuroshiense called aonori is used to season dishes such as takoyaki and okonomiyaki.