OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cystopteris tenuis   FAMILY Cystopteridaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cystopteris tenuis   FAMILY Dryopteridaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Cystopteris tenuis

SYNONYMOUS WITH Flora of North America

Cystopteris tenuis

INCLUDED WITHIN Flora of West Virginia (Strausbaugh & Core, 1978)

Cystopteris fragilis

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Cystopteris fragilis var. mackayi

 

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


         To see larger pictures, click or hover over the thumbnails.

image of Cystopteris tenuis, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

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, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

JK Marlow    jkm160628_118

June    Polk County    NC

Pearson's Falls

image of Cystopteris tenuis, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

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, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

JK Marlow    jkm160702_168b

July    Jackson County    NC

image of Cystopteris tenuis, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

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, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

JK Marlow    jkm160702_173

July    Jackson County    NC

image of Cystopteris tenuis, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

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, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

JK Marlow    jkm160726_021

July    Polk County    NC

Pearson's Falls

image of Cystopteris tenuis, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

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, Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern

JK Marlow    jkm160726_024

July    Polk County    NC

Pearson's Falls

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cystopteris tenuis   FAMILY Cystopteridaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cystopteris tenuis   FAMILY Dryopteridaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Cystopteris tenuis

SYNONYMOUS WITH Flora of North America
Cystopteris tenuis

INCLUDED WITHIN Flora of West Virginia (Strausbaugh & Core, 1978)
Cystopteris fragilis

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

 

Find by SCIENTIFIC NAME:

4023

Fern/Fern ally
Perennial

Habitat: Moist outcrops and cliffs of metamorphic and sedimentary rocks, occasionally in moist soils near rock outcrops or moist soil banks, per Weakley's Flora

Native to the Carolinas & Georgia

Uncommon in NC Mountains (rare elsewhere in GA-NC-SC)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Deciduous
2-pinnate-pinnatifid ?

FRUIT:
Spring/Summer

 

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



 


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