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Hemionitis rotundifolia

Compact evergreen fern with arching fronds and small round dark green leaflets on reddish-brown stems forms a dense, low clump, native to Australia and New Zealand, drought-tolerant yet prefers consistent moisture, ideal as a houseplant in partial shade with moist, well-drained acidic soil and moderate humidity, hardy in USDA zones 9–11, suitable for indoor or shaded outdoor spaces.

Is Hemionitis rotundifolia growing in your garden? Record it and all of your plants in Known.

Common Names

Button Fern, Green Cliff Brake, Cliff Brake, Cliff Break

Summary

Button Fern, also called Roundleaf Fern, is a compact evergreen fern native to Australia and New Zealand, forming a low, dense clump with arching fronds and small, round, leathery leaflets on dark reddish-brown stems that age to red, reaching about 6–12 inches tall and wide, and reproducing by spores.

Culture favors bright indirect light with protection from harsh direct sun, well-draining acidic soil kept evenly moist (never soggy), and moderate to high humidity at temperatures around 60–75°F (15–24°C); outdoors in partial shade or indoors as a houseplant, it suits containers, hanging baskets, terrariums, rock gardens, and shaded patios, and it is hardy in zones 9–11 with propagation by division or spores.

Lifecycle

Perennial

Height

6-12 inches

Spread

6-12 inches

Hardiness Zones

Zones 9-11

Sunlight Requirements

Ideally partial sun to partial shade.

Soil Type

Moist, well-drained soil

Soil Drainage

Moist, well-drained soil.

Soil pH

Acidic, pH < 6.0

Bloom Time

Does not bloom

Foliage Color

Deep green

Fall Foliage Color

Yellow

Leaf Lifecycle

Evergreen broadleaf

Growth Rate

Slow-growing; 5–8 years to reach ultimate height

Seasons of Interest

Spring, Summer, Fall, and Winter

Propagation Methods

Spores, Division, Root cuttings

Attracts Wildlife

Attracts no wildlife

Taxonomy

Taxonomic Rank
Species
Author
(G.Forst.) Christenh.
Publication
Global Fl. 04:20. 2018

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Polypodiophyta
Class
Polypodiopsida
Subclass
Polypodiidae
Order
Polypodiales
Family
Pteridaceae
Subfamily
Cheilanthoideae
Genus
Hemionitis

Synonyms

Pteris rotundifolia Pellaea rotundifolia Allosorus rotundifolius Platyloma rotundifolia

References

Keep Your Pellaea rotundifolia Alive - Plant Care. greg.app.
Roundleaf Fern – Plant Detectives. plantdetectives.com.
Hemionitis rotundifolia (Button Fern, Cliffbrake, …. plants.ces.ncsu.edu.
Pellaea rotundifolia (Button Fern). gardenia.net.
How to Grow and Care for Button Fern (Pellaea rotu…. thespruce.com.
Our ULTIMATE Guide on Button Ferns!. ukhouseplants.com.
World Flora Online. worldfloraonline.org. June 2024.