Commercial Mushroom Names: Species vs Cultivar vs Brand Names

Safety first. If someone has eaten a mushroom or a mushroom product and is confused, very agitated, vomiting repeatedly, has chest pain, a seizure or trouble breathing, call 911 or US Poison Help at 1-800-222-1222. See poisoning: what to do first. This page explains names only. It does not profile any commercial name, rank products or help anyone choose or identify a mushroom.

Three different kinds of name

People use "mushroom names" for three different things, and mixing them up causes most of the confusion.

A species is a group recognized by scientists. A "strain" name is closer to a nickname for a line of cultures that someone has kept and passed on.

What research says about strain names

Scientific work on these names is thin. A 2025 review of Psilocybe cubensis strains noted that its examples of named strains came mostly from non-academic, community-based reports, partly because legal restrictions have limited formal research. [2] The same review described a genomic analysis finding that commercially labeled cultivars often lack genetic similarity across different suppliers. [2] In plain terms, two sources can use the same name for cultures that are not closely matched, and a name alone does not prove a shared genetic identity.

The review also reports substantial variability in appearance and chemical content among strains. [2] It does not support using a name as a guide to what a mushroom contains. This page therefore does not describe or rank any individual commercial name, because we found no reliable scientific basis for doing so.

Why a name does not establish composition

• Individual mushrooms vary. In a laboratory study of one species, the concentration of tryptamines (the family of compounds that includes psilocybin) in individual fruiting bodies was highly variable. [3] See psilocybin mushroom chemistry and research limits.
• Names on packages can be wrong. In a Portland, Oregon analysis of eight recreational mushroom gummies, labeling was inaccurate and inconsistent in many products, and one product labeled psilocybin-free tested positive for psilocybin. [4] See unverified mushroom gummies and similar products.
• A species name is not a safety guarantee either. NIDA warns of the risk of mistaking a toxic mushroom for one containing psilocybin. [5] See why photos and names are not safety assurances.

Evidence labels used here

We use plain labels: marketing claim (a statement from sellers or communities without independent testing), insufficient evidence, and Proper evidence not found.

• Claims that one named strain is stronger, gentler or more "spiritual" than another: marketing claim. We found no controlled study comparing named strains in people.
• Claims that a name reliably predicts effects: insufficient evidence. [2]
• A reliable guide to the composition of any commercial name: Proper evidence not found. We checked PubMed and a recent review of P. cubensis strains.

Naming and the law

Law usually refers to substances such as psilocybin, and sometimes to organisms, not to nicknames. A name does not change legal status. In the US federal list of Schedule I hallucinogenic substances, psilocybin and psilocyn are named. [6] We did not read laws for other places for this page. This is not legal advice and laws change. See psychedelic legal status by country.

How to read a mushroom name critically

1. Ask whether it is a scientific name or a nickname.
2. Ask who tested it, with what method, and on which specimen or batch.
3. Treat any single number tied to a name as a measurement of one sample, not a property of the name.
4. If a health decision is involved, speak with a licensed clinician. See talking with a health professional.

For the genus overview, see psilocybin mushrooms and the Psilocybe species directory.