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Lowland Bladder Fern

Cystopteris protrusa

Found in rich woods or on moss- and soil-covered talus in boulderfields, loess bluffs, occasionally on ledges of rock outcrops. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

8
Modest

Native to Virginia. How scores work Is it native here?

Profile 76%

Height
6 inches–1.5 feet
Spread
6 inches–1.5 feet
Light
Dappled sunlight, Deep shade, Partial shade
Soil moisture
Dry to wet

Space about 1 ft apart from its recorded spread, about 100 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Leaves
Deciduous
Bloom
April to June

Recorded in 62 Virginia counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 2

Cliffs, ledges and rocky summits

Sassafras Mountain rock outcrop
Rock outcrop on a mountain summit. Shown: Sassafras Mountain, on the North Carolina and South Carolina line, a neighboring state.Sassafras Mountain rock outcrop, Alan M. Cressler / U.S. Geological Survey, undated. Public domain. Source record. Faithful JPEG display decode of embedded JP2; no AI or color enhancement. Phone derivative resized proportionally.

Moist forests

Shortia beneath rhododendrons in mountain woodland
Regional / representative. Shown: Mountains of North and South Carolina; exact site not identified, a neighboring state.Shortia beneath rhododendrons in mountain woodland, Marian Ellis Rowan, 1901. Public domain. Source record.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 112 animals.

All wildlife of Virginia

Ecological relationships

Who uses this plant?

What these records mean

0CaterpillarsGenus host records with ranges including VA
0BeesSoutheastern regional records
0Specialist beesPollen specialists
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Cystopteridaceae
Hardiness
Zones 2b–9a
Soil pH
Neutral
Flower color
Not applicable

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Southern Bladder Fern

Conservation status

Virginia rankS5
Global rankG5
VA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

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How to check your spot

Sources