Native & Naturalized Plants of the Carolinas & Georgia


4023

Fern/Fern ally
Perennial

Native to North Carolina & Georgia
Documented growing wild in GA NC -

Uncommon

Look for it on moist outcrops and cliffs of metamorphic and sedimentary rocks, occasionally in moist soils near rock outcrops or moist soil banks, per Weakley's Flora

map
To see a detailed map, click here

 

...Moist

LEAVES:
Deciduous
Bipinnate-pinnatifid ?

FRUIT:
Spring/Summer

 

TO LEARN MORE about this plant, look it up in a good book!



Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Polypodiales

WEAKLEY'S FLORA (5/21/15):
Cystopteris tenuis   FAMILY Cystopteridaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cystopteris tenuis   FAMILY Dryopteridaceae

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Cystopteris fragilis var. mackayi

LESS THAN Flora of West Virginia (Strausbaugh & Core, 1978)
Cystopteris fragilis

 

COMMON NAME:
Mackay's Bladder Fern, Mackay's Fragile Fern


Click or hover over the thumbnails to see larger pictures.

image of Cystopteris tenuis

JK Marlow    jkm160628_117

June    Polk County    NC

Pearson's Falls

Fronds 6-14" long and 1-3" wide; erect, arching, or prostrate, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris tenuis

JK Marlow    jkm160628_118

June    Polk County    NC

Pearson's Falls

image of Cystopteris tenuis

JK Marlow    jkm160702_166

July    Jackson County    NC

Blade lanceolate, widest at or just below middle, with narrow tip, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris tenuis

JK Marlow    jkm160702_168b

July    Jackson County    NC

image of Cystopteris tenuis

JK Marlow    jkm160702_172b

July    Jackson County    NC

Sori round, between midrib and margin. Indusia disappear as sori mature, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris tenuis

JK Marlow    jkm160702_173

July    Jackson County    NC

image of Cystopteris tenuis

JK Marlow    jkm160702_174

July    Jackson County    NC

Stipe dark brown at base w a few scales, mostly green or strawcolored above, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris tenuis

JK Marlow    jkm160726_021

July    Polk County    NC

Pearson's Falls

image of Cystopteris tenuis

JK Marlow    jkm160726_022

July    Polk County    NC

Pearson's Falls

Veins extending to pinnae margins, directed into teeth AND notches, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris tenuis

JK Marlow    jkm160726_024

July    Polk County    NC

Pearson's Falls