Copelandia cambodginiensis, Pan. cam., Cubensis cambodia, the Cambodian

Panaeolus cambodginiensis is a magic mushroom that was first found growing around the famous Angkor Wat temple in Cambodia by famous amateur ethnomycologist J.W. Allen. While Allen was filming Psilocybes, he came across the first specimen of Panaeolus cambodginiensis growing in water buffalo dung. The flesh was readily bruising blue, a sign of psilocin presence.

Allen found was the first to identify a few other other magic mushrooms so it is not clear if the Allen mushroom stands for Panaeolus cambodginiensisPsilocybe allenii, or Psilocybe samuensis (the latter being the best bet).

Panaeolus cambodginiensis was first described as Copelandia cambodginiensis, a tropical and semitropical subgenus of Panaeolus that are recognized by their “mottled gills” that give a spotted effect.

Thought to be widespread throughout the Asian subtropics, in 1993, Allen and Merlin reported the specie from Hawaii as well.
Panaeolus Cambodginiensis is larger than its relative Panaeolus tropicalis and generally smaller than Panaeolus cyanescens.

This moderately highly active psychedelic fungus has been described by consumers to provide an energetic and long lasting high and some believe it to be a good candidate for fostering both focus and creativity at work.

Today, this fast-colonizing specie is a popular choice for cultivators worldwide and is commonly called The Cambodian. It is said to have considerably gained in potency.

Visual Description

• Cap: 1.2-2.5 cm broad, conic-convex at first, expands to broadly convex and nearly plane with maturity. Surface is smooth, viscid when moist, often cracking with irregular fissures when drying. Coloration is chocolate brown when young, quickly fading to yellowish brown in maturity, often with olive greenish gray hues along the cap margin. Flesh quickly bruises bluish when injured. • Gills: attachment is ascending, uncinate (hooked shape), with shorter gills inserted in between. Gills are mottled (spotted). Coloration is pallid, soon grayish black to black at maturity. • Stem: 55-95 mm long by 3.5-5 mm thick. Centrally and strongly attached to cap and gills. Even, thicker at the base. May present a fine annular zone and the upper area can be striate. Color is whitish to cream, brown near the base. Bruises blue when injured. • Spore print: blackish brown • Microscopic features: 10.5-12 x 6.5-9 micrometres.


MODERATE 0.25% - 0.75% Merlin and Allen 1993 data: 0.55% psilocybin, 0.6% psilocin

Habitat Origin

Originally described in Cambodia, thought to be widespread throughout the Asian subtropics. Reported in Kahalu’u O’ahu, Hawaii by Merlin and Allen in 1993. Scattered or gregarious, on the dung of water buffalo. Also reported from Mexico and South America


It is described to deliver an energetic and long lasting high with some smooth bodily effects. Also said to be a quick rise with effects showing in a rapid 10-20 mnts and lasting up to 6-8 hours. Because this strain is described to enhance visual alterations, and release creative impulses, it is a favourite to enhance work performance. Steven H. Pollock was said to have grown this species in his Texan garden in the late 1970s; perhaps from there starts a new distribution within the Gulf Coast mycoflora?