• Proposed
  • Under Assessment
  • Preliminary Assessed
  • Assessed
  • LCPublished

Cantharellus tenuithrix Buyck & V. Hofstetter

Search for another species...

Scientific name
Cantharellus tenuithrix
Buyck & V. Hofstetter
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Assessment date
IUCN Red List Category
Siegel, N.
Dahlberg, A.

Assessment Notes

The content on this page is fetched from The IUCN Red List of Threatened Species: https://www.iucnredlist.org/species/198623184/198623713


Cantharellus tenuithrix is a species of golden chanterelle that was described from hardwood forests in Texas, USA, and has also been recorded from Tennessee and Florida. Most records pre-2011 would have been recorded under the catchall name for golden chanterelles, Cantharellus cibarius. It also appears to be macro-morphologically indistinct from Cantharellus flavus, and can only be reliably distinguished by microscopic features or TEF-1 sequence data. Due to the limited number of sequenced collections, or observations with micro data, information to assess population size and trends is lacking at this time. We can infer that it is likely widespread across south-east USA, and appears to occur in a habitat not under threat; thus warranting a Least Concern listing.

Taxonomic notes

Cantharellus tenuithrix was described from eastern Texas, USA (Buyck and Hofstetter 2011). Currently Cantharellus tenuithrix is believed to be indistinguishable from C. flavus in the field (Buyck et al. 2016), and requires microscopic examination, and/or by TEF-1 sequence data analysis. Prior to work published on golden chanterelles in North America (Buyck and Hofstetter 2011, Foltz et al. 2013), records of this species would have been recorded under the catchall name Cantharellus cibarius.

Geographic range

The geographic range of Cantharellus tenuithrix remains poorly known, due to the difficulty of positive identification without TEF-1 sequence analysis, and most golden chanterelles having been recorded as C. cibarius in North America prior to taxonomic work on this group (Buyck and Hofstetter 2011, Foltz et al. 2013). Currently, sequenced-confirmed collections come from Texas (Buyck and Hofstetter 2011), Florida and Tennessee (MyCoPortal 2021), USA, and it is likely that this species is widespread across the south-east USA. The extent of its distribution to the north is largely unknown, and the application of the name C. flavus (without the necessary microscopic work, or sequence data) to records from this area may include reports of this species.

Population and Trends

Too little is known about Cantharellus tenuithrix to make a robust assessment of population size and trends. Based on localities for which there are sequenced-confirmed populations (Texas, Florida, and Tennessee), subpopulations appear to occur over a widespread area. Data to assess trends and population size will require more sequence-confirmed collections, due to the difficulty of distinguishing this species from other golden chanterelles.

Population Trend: unknown

Habitat and Ecology

Cantharellus tenuithrix is an ectomycorrhizal species, likely associated with hardwoods. Buyck and Hofstetter (2011) report collections from "oak-hickory forest on sandy soil, and "pine-oak woods on sandy soil". More collections are needed to fully understand habitat requirements and ecological constraints.


No specific threats have been identified with regards to this species.

Conservation Actions

No specific conservation actions have been identified with regards to this species at this time. A better understanding of population numbers, distribution, and trends of Cantharellus tenuithrix is needed, and more collections are needed to fully understand habitat requirements and ecological constraints.

Use and Trade

Cantharellus tenuithrix (and all other golden chanterelles in North America) are edible, and are indiscriminately collected by foragers and small-scale commercial pickers.

Source and Citation

Siegel, N. 2021. Cantharellus tenuithrix. The IUCN Red List of Threatened Species 2021: e.T198623184A198623713. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T198623184A198623713.en .Downloaded on 23 September 2021

Country occurrence