rattlesnake fern

(Botrypus virginianus)

Conservation Status
rattlesnake fern
  IUCN Red List

not listed

     
  NatureServe

N5 - Secure

SNR - Unranked

     
  Minnesota

not listed

     
           
Wetland Indicator Status
     
  Great Plains

FACU - Facultative upland

     
  Midwest

FACU - Facultative upland

     
  Northcentral & Northeast

FACU - Facultative upland

     
           
 
Description
 
 

The triangular blades are held well above the ground.

The fertile portion is not a separate frond but a continuation of the main stem.

 
     
 

Height

 
 

12 to 18

 
     
 

Similar Species

 
 

Other grape ferns (Botrychium) are much smaller.

Western bracken fern (Pteridium aquilinum var. latiusculum) is larger, up to 36 in height. There is no separate fertile portion.

 
     
 
Habitat
 
 

Woods. Moist open places, sunny or shady edges.

 
     
 
Biology
 
 

Sporulation

 
 

 

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 28.

 
  6/4/2015      
         
 

Nativity

 
 

Native

 
         
 

Occurrence

 
 

 

 
         
 
Taxonomy
 
  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Polypodiophytina  
  Class Polypodiopsida (ferns)  
  Subclass Ophioglossidae (adder's-tongues, fork ferns, and allies)  
 

Order

Ophioglossales (adder's-tongues and allies)  
 

Family

Ophioglossaceae (adder's-tongue)  
 

Subfamily

Botrychioideae  
 

Genus

Botrypus  
       
 

This species was formerly placed in the Botrychium subgenus Osmundopteris. It is now the only species in the genus Botrypus.

 
       
 

Subordinate Taxa

 
 

 

 
       
 

Synonyms

 
 

Botrychium virginianum

Botrychium virginianum ssp. europaeum

Botrychium virginianum var. europaeum

 
       
 

Common Names

 
 

common grapefern

rattlesnake grapefern

Virginia grape fern

 
       

 

 

 

 

 

 

 

 

 

       
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MinnesotaSeasons.com Photos
   

Plant

  rattlesnake fern   rattlesnake fern
       
  rattlesnake fern    
       

Fronds

  rattlesnake fern    
       

Pinna

  rattlesnake fern    
       
       
       
       

 

Camera

     
 
Slideshows
 
 
     
     
     

 

slideshow

       
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Other Videos
 
  Rattlesnake fern 2
PalmettoMan Adventures
 
   
 
About

Uploaded on Oct 14, 2011

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