• Proposed
  • Under Assessment
  • LCPreliminary Assessed
  • 4Assessed
  • 5Published

Suillus flavidus (Fr.) J. Presl

Go to another Suggested Species...

Scientific name
Suillus flavidus
(Fr.) J. Presl
Common names
maślak błotny
Moor-Röhrling, Bolet jaunâtre
masliak močiarny
Масленок болотный
Purva sviestbeka
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Preliminary Assessed
Preliminary Category
Proposed by
Beatrice Senn-Irlet
Gregory Mueller
Martyn Ainsworth, Anders Dahlberg, Inita Daniele, Jacob Heilmann-Clausen, Vladimír Kunca, Kamil Kędra, Ibai Olariaga Ibarguren, Beatrice Senn-Irlet, Elena Zvyagina, Tea von Bonsdorff
Comments etc.
Reda Iršėnaitė, Michael Krikorev, Pierre-Arthur Moreau, Wim Ozinga

Assessment Notes

Motivate assessment


Suillus flavidus is a fungus forming mycorhizas with coniferous trees (pine) in bogs. A rare species of a threatened habitat with narrow ecological range, a showy, edible species.

Preliminary global red-list assessment; LC (Least Concern)

Taxonomic notes

Syn. Boletus elegans, Suillus elegans

Why suggested for a Global Red List Assessment?

Geographic range

Population and Trends

In Italy known from 5 regions only (Onofri 2005), in Switzerland known from 25 sites, in Baden-Württemberg from 26 sites, in Austria from 11 sites, which clearly indicates its rarity in central and southern Europe. As the species is confined to bogs which underwent great losses in the last 70 years we can assume losses.

Population Trend:

Habitat and Ecology

a very specialized species of bogs, ectomycorrhizal with Pinus mugo var. montana

Boreal ForestBogs, Marshes, Swamps, Fens, Peatlands [generally over 8 ha]


habitat destruction, air-borne pollutants and climate change lead to habitat changes threatening even protected sites.

Unintentional effects: large scale (species being assessed is not the target) [harvest]Dams & water management/useNutrient loadsAir-borne pollutantsHabitat shifting & alteration

Conservation Actions

Strict habitat conservation. In central Europe most bogs profit from the status of a nature reserve, therefore the prospects are moderately favorable for this species.

Site/area protectionNational level

Research needed

Use and Trade


Krieglsteiner, G. 2000. Die Grosspilze Baden-Württembergs, Band 2. Ulmer Verlag
Senn-Irlet, B.; Bieri, G.; Egli, S., 2007: 
Liste rouge Champignons supérieurs. Liste rouge des espèces menacées en Suisse.
L’environnement pratique. Berne, Office fédéral de l’environnement OFEV, Birmendorf, Institut fédéral de recherche sur la forêt, la neige et le paysage WSL. 18: 94 S.
Onofri, S. (ed). 2005. Checklist of Italian fungi- Basidiomycetes. O.P.T.I.M.A. 380 p

Known distribution - countries

Regional Population and Trends

Country Trend Redlisted