Amanita yuaniana

Overview

Amanita yuaniana is a mushroom of the genus Amanita from southwest China. The genus includes some of the most toxic mushrooms known, and the Frontiers study notes that deaths from poisonous Amanita are common in China.

Recent surveys in Yunnan and northern China list Amanita yuaniana as edible. Those listings come from taxonomic and market surveys. No source found tests its toxicity or describes how it is cooked.

Names and taxonomy

The species was described by Zhu L. Yang and colleagues. The catalogue records the scientific name as a research label rather than a reconciled accepted name, so records should be checked against current taxonomy. Its identity in the field is established by morphology and DNA, not by appearance alone: the 2023 northern Chinese study used cap, stalk, volva remnants, spore size and clamp connections with multi-locus DNA phylogeny.

The sequence data used in that study include a specimen from Lijiang, Yunnan. The study does not record a local name.

Distribution

The sources record A. yuaniana in Yunnan, with a voucher and a market record in the Pu'er survey, and it is named among the commonly known edible fungi in China. The Frontiers study notes that China has a high diversity of Amanita species.

Food use and edibility

The Pu'er survey lists the species as edible, and the northern Chinese study names it among commonly known edible fungi. Neither source records how it is prepared, how much is eaten, or whether it is sold by name in markets beyond the survey.

The main risk in the genus is confusion with lethal species. The Frontiers study names Amanita subjunquillea as deadly poisonous, and A. virosa and A. tenuifolia as poisonous.

Safety

The edible listing for Amanita yuaniana is taxonomic and market evidence, not a toxicity test. The sources give no safe quantity, no cooking method and no record of whether the species is confused with toxic relatives in the field.

The Frontiers study states that deaths from poisonous Amanita are common in China. Do not eat this species on the strength of this page. Identify any wild Amanita with a qualified mycologist, and follow official food safety advice before eating any wild mushroom.

Open questions

The sources do not give a field key for this species, a documented cooking method, a local name, or a toxicity assessment. The catalogue records a checklist lead, and direct local consumption evidence is still to be found. These are unknown, not negative findings.