Native & Naturalized Plants of the Carolinas & Georgia


430

Fern/Fern ally
Perennial

Native to the Carolinas & Georgia
Documented growing wild in GA NC SC

Common in Mountains, rare in Piedmont & Coastal Plain

Look for it in rich woods or on moss- and soil-covered talus in boulderfields, occasionally on ledges of rock outcrops, per Weakley's Flora

map
To see a detailed map, click here

 

shade ...Moist

LEAVES:
Deciduous
Bipinnate-pinnatifid
Leaves scattered along a creeping rhizome

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 protrusa   FAMILY Cystopteridaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cystopteris protrusa   FAMILY Dryopteridaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 011-03-001:
Cystopteris protrusa   FAMILY Aspidiaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933)
Cystopteris fragilis var. protrusa

 

COMMON NAME:
Lowland Bladder Fern, Spreading Bladder Fern


Click or hover over the thumbnails to see larger pictures.

image of Cystopteris protrusa

Richard and Teresa Ware    rtw_cystopteris_protrusa

March        

image of Cystopteris protrusa

Emily B. Sessa    ebs_cprotrusa7882

April        

Lower pinnules (near rachis) on lower pinnae have small stalks, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris protrusa

Emily B. Sessa    ebs_cprotrusa7888

April        

Long-creeping rhizome extends forward past emerging fronds (thus protrusa), per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris protrusa

Emily B. Sessa    ebs_cprotrusa7892

April        

image of Cystopteris protrusa

JK Marlow    jkm070407_074

April    McCormick County    SC

Stevens Creek Heritage Preserve

Gently explore the soil below outermost emergent fronds to feel rhizome tip, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris protrusa

JK Marlow    jkm140418_291

April    Sevier County    TN

Great Smoky Mountains National Park

Habit of growing in soil not on rocks helps distinguish it from similar spp, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris protrusa

JK Marlow    jkm0505m_06

May    Haywood County    NC

Corneille Bryan Native Garden

For many years this was considered the same species as C. fragilis, per Field Guide to the Ferns and Other Pteridophytes of Georgia.

image of Cystopteris protrusa

JK Marlow    jkm160516_760

May    Haywood County    NC

Corneille Bryan Native Garden

Blade lanceolate, tips pointed, widest just below middle; ~ dissected, per Peterson Field Guide to Ferns of Northeastern and Central North America.

image of Cystopteris protrusa

JK Marlow    jkm160516_763b

May    Haywood County    NC

Corneille Bryan Native Garden

image of Cystopteris protrusa

Emily B. Sessa    ebs_cprotrusa0917

June        

Sori roundish, astride veins, submarginal, per Field Guide to the Ferns and Other Pteridophytes of Georgia.

image of Cystopteris protrusa

JK Marlow    jkm170818_708

August    Jackson County    NC

Big Ridge Preserve