Teonanácatl-type mushroom
Psilocybe mexicanaHymenogastraceae // fruiting bodies · sclerotia
Also known as: pajaritos; one of several sacred mushrooms
Preparation
Overview
Plant parts
fruiting bodies, sclerotia
Known constituents
psilocybin, psilocin
Research corpus coverage
Chemistry notes
- Principal reported constituents include psilocybin, psilocin; broad class: serotonergic psychedelic tryptamines.
Uses & Evidence
Traditional / historical use
Documented traditional use — not a claim of established efficacy.
No traditional-use records in this corpus.
Modern evidence
Mazatec mushroom ceremonies use multiple Psilocybe species; teonanácatl cannot always be assigned to one species.
MODERATE · Psychoactive and other ceremonial plants from a 2,000-year-old Maya ritual deposit at Yaxnohcah, Mexico
Identity/attribution caution.
Safety
Human
- High risk
Safety severity is HIGH: acute anxiety, confusion, accidents; rare prolonged psychiatric effects; mushroom misidentification can be fatal
Misidentification · HIGH · Drugs of Abuse: A DEA Resource Guide, 2024 Edition
Cats
- Caution
The page groups Psilocybe species among mushrooms containing psilocybin and psilocin; ingestion produces acute central nervous system toxicosis that is generally self-limiting and not life-threatening, with recovery reported within 6–12 hours.
Intrinsic toxicity · OTHER · whole mushroom; preparation not specified · MODERATE · veterinary_manual · Overview of Mushrooms Toxic to Animals - Toxicology
Dogs
- Caution
The page groups Psilocybe species among mushrooms containing psilocybin and psilocin; ingestion produces acute central nervous system toxicosis that is generally self-limiting and not life-threatening, with recovery reported within 6–12 hours.
Intrinsic toxicity · OTHER · whole mushroom; preparation not specified · MODERATE · veterinary_manual · Overview of Mushrooms Toxic to Animals - Toxicology
Cats & dogs
- High risk
The page describes psilocybin or hallucinogenic mushrooms as neurotoxic after ingestion, causing neurologic abnormalities and potentially affecting the kidneys and liver.
Intrinsic toxicity · OTHER · whole mushroom; private stash, including mushrooms mixed with chocolate or other flavoring substances · MODERATE · veterinary_hospital_guidance · Mushroom Toxicity
Additional safety notes (general, unstructured)
Free-text safety notes carried from their source — not broken out by species, route, or hazard type, and not equivalent to the structured records above. Each note names the kind of source it came from.
Safety severity is HIGH: acute anxiety, confusion, accidents; rare prolonged psychiatric effects; mushroom misidentification can be fatal
HIGH · Drugs of Abuse: A DEA Resource Guide, 2024 Edition
The page describes psilocybin or hallucinogenic mushrooms as neurotoxic after ingestion, causing neurologic abnormalities and potentially affecting the kidneys and liver.
MODERATE · veterinary_hospital_guidance · Mushroom Toxicity
The page discusses psilocybin mushrooms as a group and does not specifically identify Psilocybe mexicana.
The page groups Psilocybe species among mushrooms containing psilocybin and psilocin; ingestion produces acute central nervous system toxicosis that is generally self-limiting and not life-threatening, with recovery reported within 6–12 hours.
MODERATE · veterinary_manual · Overview of Mushrooms Toxic to Animals - Toxicology
The page names Psilocybe spp. but does not specifically identify Psilocybe mexicana or provide cat-specific clinical data.
The page groups Psilocybe species among mushrooms containing psilocybin and psilocin; ingestion produces acute central nervous system toxicosis that is generally self-limiting and not life-threatening, with recovery reported within 6–12 hours.
MODERATE · veterinary_manual · Overview of Mushrooms Toxic to Animals - Toxicology
The page names Psilocybe spp. but does not specifically identify Psilocybe mexicana.
Preparation × species risk matrix
Unknown means insufficient evidence was located — not that a form is safe.
Cats
- whole herbHigh risk
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- smoke/combustionUnknown
- tea/infusionUnknown
Dogs
- whole herbHigh risk
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- smoke/combustionUnknown
- tea/infusionUnknown
Identity
- Synonym
GBIF lists Psilocybe armandii Guzmán & S.H.Pollock as a taxonomic synonym of Psilocybe mexicana.
HIGH · GBIF Species Synonyms API
Common name
pajaritos; one of several sacred mushrooms
Traditions
Mazatec veladas and broader Mesoamerican historical contexts
Oaxaca and Mesoamerica // pre-Columbian iconographic/textual debate; well-documented 20th-century living tradition // living tradition
Ethnobotanical
Teonanácatl-type mushroom is documented in Mazatec veladas and broader Mesoamerican historical contexts in Oaxaca and Mesoamerica for night healing/divinatory ceremony.
HIGH · Psychoactive and other ceremonial plants from a 2,000-year-old Maya ritual deposit at Yaxnohcah, Mexico
Ritual
Documented functions include healing, divinatory, visionary, spirit-contact; these functions are tradition-specific and should not be generalized across cultures.
HIGH · Psychoactive and other ceremonial plants from a 2,000-year-old Maya ritual deposit at Yaxnohcah, Mexico
Legal
Legal status changes over time and by jurisdiction — this is a dated snapshot, not current law.
International · Checked 2026-08-09
Varies substantially by country; constituent controls and plant-specific controls are not uniform.
State / municipal · Checked 2026-08-09
Material state and municipal variation may apply; verify jurisdiction at time of use.
US Federal · Checked 2026-08-09
Psilocybin and psilocin are Schedule I; some state/local reforms do not change federal law.
Sources
Research records are source-linked but may not yet be editorially reviewed.
veterinary_manual
peer-reviewed article
government/regulatory source
- Mushroom Toxicity2 claims
veterinary_hospital_guidance
- 21 CFR 1308.11 — Schedule I1 claim
government/regulatory source
- GBIF Species Synonyms API1 claim
authoritative taxonomic database