Although it is sometimes confused with Psilocybe caerulipes, it can be distinguished by its rhomboid spores, larger stature, earlier fruiting season and membranous annulus.

The species names ‘cyanescens’, ‘allenii’, and ‘ovoideocystidiata’ refer to distinctive features of each mushroom, such as coloration and shape.

[1] Psilocybe ovoideocystidiata is mainly native to the eastern United States, in a range that stretches from Kentucky to Rhode Island, but has been found as far south as Mississippi.

As a relatively recently identified species, there is evidence that its range is currently undergoing rapid expansion, and it is frequently reported to appear in new areas.

Seasonality varies a great deal depending on what region they are found in, but in the northeastern US, they are most common in the spring, from mid-April to late-June (peaking late-May), especially after periods of steady heavy rain for several consecutive days (a common weather pattern in the eastern US during spring).