Nostoc verrucosum is a species of cyanobacteria usually found in colonies and in globose racks.

It grows in creek beds, shallow streams, waterfalls, and moist understory in rain forests, in alkaline soil and water habitat.

Like other Nostoc species, this organism fixes nitrogen and provides important nutrients for plants, forming a symbiotic interaction with them.

It can withstand freezing and thawing cycles and can survive extreme conditions in places such as the Arctic and Antarctica.

It can stay dormant for long periods of time and abruptly recover metabolic activity when rehydrated.