Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Polypodiales
		
	
	
	
	
						
	
	
	
	
	
	
	
	
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
	
	
		 
		
	
Athyrium angustum 	
	
	
		
		
		
	
	 
	 
	FAMILY
	Athyriaceae
	
	
	
		 
		 
		
		Go to FSUS key
	
	
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Athyrium from the Vascular Plants of North Carolina.
The plants ascribed to A. angustum in the Roan Mountain massif may represent an undescribed (or currently unrecognized) entity, per Weakley's Flora (2022)
SYNONYMOUS WITH
	
	
	
	
	PLANTS NATIONAL DATABASE:
	
			
	
	
	
    
	
	Athyrium filix-femina ssp. angustum 
	
	
	
	 
	 
	FAMILY
	Dryopteridaceae
	
SYNONYMOUS WITH Flora of North America
Athyrium filix-femina var. angustum
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Athyrium filix-femina var. michauxii
SYNONYMOUS WITH Ferns of the Southeastern States (Small, 1938)
Athyrium angustum
COMMON NAME:
Northern Lady Fern
To see larger pictures, click or hover over the thumbnails.
Emily B. Sessa ebs_afilixfeminaang1566
July
Indusia with hairs but not glands, edge attached to long sides of sori, per Peterson Field Guide to Ferns of Northeastern and Central North America.
Emily B. Sessa ebs_afilixfeminaang1720
July
Pinnae sessile or with very short stalks, per Peterson Field Guide to Ferns of Northeastern and Central North America.
JK Marlow jkm070703_058
July Summers County WV
Sandstone Visitors Center
Sori elongate. Spores yellowish to brownish, mature spores golden yellow, per Peterson Field Guide to Ferns of Northeastern and Central North America.
JK Marlow jkm070703_061b
July Summers County WV
Sandstone Visitors Center
Blades broadly lanceolate w pointed tips, widest near or just below middle, per Peterson Field Guide to Ferns of Northeastern and Central North America.
	
	
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
	
	
		 
		
	
Athyrium angustum 	
	
	
		
		
		
	
	 
	 
	FAMILY
	Athyriaceae
	
SYNONYMOUS WITH
	
	
	PLANTS NATIONAL DATABASE:
	
			
	
	
	
    
	
	
	Athyrium filix-femina ssp. angustum 
	
	 
	 
	FAMILY
	Dryopteridaceae
	
	SYNONYMOUS WITH
	
	Flora of North America
	
	Athyrium filix-femina var. angustum
	
SYNONYMOUS WITH
	
 
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
	
  
	Athyrium filix-femina var. michauxii
	
SYNONYMOUS WITH
	
 
Ferns of the Southeastern States (Small, 1938)
	
  
	Athyrium angustum
	
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