Species map · Tricholoma terreum
Grey knight map of Turkey: where and when it grows
Our map holds 33 verified records of the grey knight (Tricholoma terreum) from 12 provinces of Turkey. Most come from Ankara, Manisa, Yozgat and Muğla; records peak in January, May and December.
- records
- 33
- provinces
- 12
- regions
- 5
- latest record
- Oct 2026
Records by province
- Ankara9
- Manisa5
- Yozgat4
- Muğla4
- Bolu3
- İstanbul2
- Tokat1
- Bartın1
- Gaziantep1
- Sakarya1
- Kırklareli1
- Samsun1
- Central Anatolia 13
- Aegean 9
- Black Sea 6
- Marmara 4
- East and Southeast 1
Linked provinces have their own page with every species recorded there. Record density also reflects where observers work.
Which months?
This page covers only where and when the species is recorded in Turkey. For identification and edibility, see the species page. Built from research-grade, geo-referenced GBIF and iNaturalist records, refreshed at the start of every month.
Poisonous look-alikes of the grey knight
- Deadly fibrecap Inosperma erubescens Deadly poisonous
- Tiger tricholoma Tricholoma pardinum Poisonous
- Livid pinkgill Entoloma sinuatum Poisonous
Records by region: Central Anatolia 13; Aegean 9; Black Sea 6; Marmara 4; Eastern and Southeastern Anatolia 1. Most records come from Ankara, Manisa, Yozgat, Muğla, Bolu, İstanbul, Tokat and Bartın.
Records peak in January, May and December; about 33% of dated records fall in September–November and 18% in March–May.
In Europe the grey knight fruits in autumn; Turkish GBIF records run from October to May, peaking in December and March.
The grey knight grows in large groups under pines, cedars and other conifers, often on sandy or chalky soil, forming a mycorrhizal partnership with the trees.
Deadly fibrecap (Inosperma erubescens, deadly): Has a fibrous cap that splits at the margin and reddens when bruised, a brown spore print, and appears in spring to early summer under broadleaf trees.
Tiger tricholoma (Tricholoma pardinum, poisonous): Larger and fleshier, with distinct dark scales on a grey cap and a mealy smell; causes severe gastrointestinal poisoning.
Livid pinkgill (Entoloma sinuatum, poisonous): Larger and cream-grey, with gills that turn pink with age, a pink spore print and a mealy smell.
Ashen knight (Tricholoma virgatum, inedible): Has a pointed, silvery-grey cap with radiating fibres and a bitter, peppery taste.
Frequently asked questions
Where does the grey knight grow in Turkey?
Most records come from Ankara, Manisa, Yozgat, Muğla and Bolu.
When does the grey knight fruit in Turkey?
Records peak in January, May and December.
Which province has the most grey knight records?
Ankara, followed by Manisa, Yozgat and Muğla. The order also reflects where observers are active.
What habitat does the grey knight prefer?
The grey knight grows in large groups under pines, cedars and other conifers, often on sandy or chalky soil, forming a mycorrhizal partnership with the trees.
Can I pick mushrooms where they are recorded?
A record is not a permit. Commercial picking in state forests needs a permit; picking in national parks is prohibited.
How current is this map?
Records are re-fetched from GBIF and iNaturalist at the start of every month and this page updates automatically.
What should I do in case of mushroom poisoning?
Call 112 at once; Turkey's poison centre is 114.
Sources
- 6831 sayılı Orman Kanunu (mevzuat.gov.tr) mevzuat.gov.tr
- 2873 sayılı Millî Parklar Kanunu, md. 14 (mevzuat.gov.tr) mevzuat.gov.tr
- Clericuzio vd. (2024), Molecules: Tricholoma terreum ncbi.nlm.nih.gov
All sources (6)
- Allı, H. ve Şen, İ. (2016). Tricholoma Türlerinin Yenilebilirliği Üzerine Notlar. Türk Tarım – Gıda Bilim ve Teknoloji Dergisi 4(3) agrifoodscience.com
- Karancı, A. ve Çetin, A. (2025). Batı Karadeniz Bölgesi'ndeki Yenilebilir Yabani Mantarların Etnomikolojik ve Gastronomik Değerlerinin İncelenmesi. Journal of Tourism and Gastronomy Studies 13(1), 485–514 (yerel ad: karakulak) jotags.net
- GBIF ve iNaturalist: Türkiye gözlem kayıtları (sitemizin haritası) gbif.org
Data sources and licences
Observations from GBIF.org (human observations and herbarium specimens; records flagged with geospatial issues excluded) and iNaturalist research-grade records, retrieved 2 November 2026. Macrofungi only (Agaricomycetes, Pezizomycetes), named to species. Every point links to its own record, with the recorder and licence (CC0, CC BY, CC BY-NC).
Map: © OpenStreetMap contributors. Province centres: Wikidata. Region comes from the record's GADM province, or the nearest province centre when missing. For protected species (iNaturalist "threatened" or IUCN VU/EN/CR) locations are rounded to ~10 km; locations obscured by iNaturalist are marked "approximate".
An observation shows that a mushroom was seen there on that day, not that it is there now or that it may be picked. Counts reflect how many people record fungi in an area more than how common a species is.
Last updated: Prepared by the Poros Mantar editorial teamReport a correction