Snow Morel

(Gyromitra gigas)

Conservation Status
Snow Morel
 
  IUCN Red List

not listed

 
  NatureServe

not listed

 
  Minnesota

not listed

 
           
           
           
 
Description
 
 

Snow Morel is an early forest mushroom. It occurs in Europe, North America, and Japa. It is common in Europe but uncommon in North America based on the small number of records for the species. It is found in the spring and early summer alone, scattered, or in groups, on the ground or on rotten wood, under coniferous or hardwood trees, often poking through leaf litter. It is saprobic, obtaining nutrients from rotting wood, and might also be mycorrhizal, having a mutually beneficial relationship with the tiny rootlets of trees. It may exhibit both traits at different parts of its life cycle.

Snow Morel is called a “false morel” due to its similarity in appearance and seasonality to true morels (Morchella spp.).

The cap is usually 1¼ to 4 wide and 1¼ to 2 high, but may be much larger. It is hollow, strongly and deeply wrinkled, highly convoluted, and brain-like. It is often squarish and blocky, and is usually compact, without strongly projecting lobes. The upper surface is dull, yellowish-brown or tan when young, becoming darker brown or reddish-brown with age. The margin of the cap is attached directly to the stalk but it is often ingrown at that point and may appear unattached.

The stalk is massive, ¾ to 4 tall and wide, about as wide as the cap. It is pale tan or whitish, hairless, and sometimes ribbed or longitudinally wavy or folded. It is often mostly or completely hidden by the closely appressed cap.

The flesh is brittle, thin, whitish, and chambered. It is edible if sautéed but not edible when raw. Some authors suggest that it be avoided due to its similarity in appearance to the poisonous False Morel (Gyromitra esculenta).

 
     
 

Similar Species

 
  False Morel (Gyromitra esculenta) is more erect. The stalk is much narrower than the cap. The cap is less convoluted.  
     
 
Habitat and Hosts
 
 

Forests

Hardwood trees

 
     
 
Ecology
 
 

Season

 
 

Spring and early summer

 
     
 
Distribution
 
 

Distribution Map

 

Sources

4, 7, 24, 26, 29, 30, 77.

 

 
  1/23/2023      
         
 

Occurrence

 
 

Uncommon in North America

 
         
 
Taxonomy
 
  Kingdom Fungi (fungi)  
  Subkingdom Dikarya  
  Phylum Ascomycota (sac fungi)  
  Subphylum Pezizomycotina  
  Class Pezizomycetes  
  Subclass Pezizomycetidae  
 

Order

Pezizales  
 

Family

Discinaceae  
 

Genus

Gyromitra  
  Subgenus Discina  
       
 

Subordinate Taxa

 
 

Until recently, two snow morels were recognized: Gyromitra montana in coniferous forests in the Rockies and westward, and Gyromitra korfii in hardwood forests east of the Rockies. An analysis of spore morphology in 2006 showed them to be the same species, and G. korfii and G. montanai became synonyms of Gyromitra gigas. The merge was not universally accepted. Many sources continue to treat the three species separately. iNaturalist treats the three, along with five other species, as the Gyromitra gigas Species Complex.

 
       
 

Synonyms

 
 

Gyromitra korfii

Gyromitra montana

 
       
 

Common Names

 
 

Bull Nose

Giant’s False Morel

Snow False Morel

Snowbank False Morel

Snow Morel

Snow Mushroom

 

 

 

 

 

 

 

Glossary

Mycorrhizal

A symbiotic, usually beneficial relationship between a fungus and the tiny rootlets of a plant, usually a tree.

 

Saprobic

A term often used for saprotrophic fungi. Referring to fungi that obtain their nutrients from decayed organic matter.

 
 
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David

 
    Snow Morel   Snow Morel  
           
 
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    Snow Morel   Snow Morel  
           
    Snow Morel      

 

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Other Videos
 
  Gyromitra gigas growing on large aspen trunk
Yugra State University Biological Collection
 
   
 
About

Jul 17, 2018

Today's find was a Gyromitra growing on a large rotten aspen log, several stout apothecia with convolute stems which i preliminary named G. gigas and they actually were, after its spores examination. The spores of this species have reticulate ornamentation and apicules from both ends.

Other collections of Gyromitra were not so easy to define, as there are several close and variable species growing nearby now (G. esculenta, G. splendida and G. longipes probably). This space is for closer studies in future, and at least i made several collections of morphologically different specimens :).

Gyromitra gigas observation on iNat: https://www.inaturalist.org/observations/13807879

 
  Gyromitra Korfii ( The Bullnose Mushroom )
Michigandermushrooms Jack
 
   
 
About

Mar 23, 2007

A quick description of Gyromitra Korfii. One of two edible species of Gyromitra.The other being a western species, Gyromitra Gigas.

 
  Gyromitra korfii with The Mushroom Hunter
Don King
 
   
 
About

Apr 8, 2021

Check out my first edible mushroom of the spring season...Gyromitra korfii, found in Portage County, Ohio

For more info regarding the edibility of Gyromitra and Verpa mushrooms, check out:

https://www.facebook.com/groups/FalseMorelsDemystified

 
  False Morel Mushroom Identification - Gyromitra Beefsteak Fungus
MiWilderness
 
   
 
About

Published on May 9, 2014

Thanks for watching MiWilderness.

   

 

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Visitor Sightings
 
           
 

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  Kat
5/15/2019

Location: Hubbard county

 
  David
5/7/2017

Location: Fillmore County

Snow Morel  
           
 
MinnesotaSeasons.com Sightings
 
   

 

 

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Created: 5/9/2017

Last Updated:

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