North America Native Plant

Naked Lipfern

Botanical name: Cheilanthes nudiuscula

USDA symbol: CHNU

Life cycle: perennial

Habit: forb

Native status: Native to Pacific Basin excluding Hawaii  

Naked Lipfern: A Rare Pacific Island Native Worth Knowing Meet the naked lipfern (Cheilanthes nudiuscula), a fascinating little fern that calls some of the most remote tropical islands in the Pacific home. While you’re unlikely to stumble across this species at your local garden center, understanding native plants like the ...

Naked Lipfern: A Rare Pacific Island Native Worth Knowing

Meet the naked lipfern (Cheilanthes nudiuscula), a fascinating little fern that calls some of the most remote tropical islands in the Pacific home. While you’re unlikely to stumble across this species at your local garden center, understanding native plants like the naked lipfern helps us appreciate the incredible diversity of flora across different regions—and might inspire you to seek out similar native ferns for your own landscape.

What Makes This Fern Special

The naked lipfern belongs to the Cheilanthes genus, commonly known as lip ferns. These hardy little plants have earned their lip nickname from the way their leaf margins curl under to protect their spore-bearing structures—like nature’s own protective lip! The naked part of this particular species’ name likely refers to its relatively sparse frond coverage compared to its bushier cousins.

As a perennial fern, the naked lipfern returns year after year, slowly establishing itself in rocky crevices and well-draining spots where many other plants would struggle to survive.

Where to Find Naked Lipfern

This tropical native has a very limited range, naturally occurring only in Guam and Palau in the Pacific Basin. These islands provide the perfect combination of tropical climate and rocky terrain that lip ferns love.

Identifying Naked Lipfern

Like other members of the Cheilanthes family, naked lipfern displays these characteristic features:

  • Small to medium-sized fronds with a delicate appearance
  • Fronds that may appear somewhat sparse or naked compared to denser ferns
  • Leaf margins that curl under (the signature lip feature)
  • Growth in rocky, well-draining locations
  • Spores produced on the undersides of fronds rather than flowers

Garden Benefits and Alternatives

While naked lipfern itself isn’t available for most gardeners due to its extremely limited native range, ferns in general offer wonderful benefits to garden ecosystems:

  • Provide shelter and habitat for small creatures
  • Add texture and year-round green interest
  • Thrive in challenging spots where flowering plants struggle
  • Require minimal maintenance once established

If you’re inspired by the naked lipfern’s story and want to incorporate native lip ferns into your own landscape, look for Cheilanthes species native to your region. Many areas have their own native lip ferns that offer similar drought tolerance and rock garden appeal.

Why Native Plants Matter

The naked lipfern’s limited distribution reminds us why protecting native plant habitats is so important. These specialized species have evolved over thousands of years to thrive in very specific conditions, and they often play crucial roles in their local ecosystems that we’re only beginning to understand.

By choosing native plants for our own gardens—whether they’re ferns, wildflowers, or shrubs—we support local wildlife, reduce maintenance needs, and celebrate the unique natural heritage of our regions. Every garden becomes a small sanctuary when we plant with native species in mind.

Naked Lipfern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Pteridaceae E.D.M. Kirchn. - Maidenhair Fern family

Genus

Cheilanthes Sw. - lipfern

Species

Cheilanthes nudiuscula (R. Br.) T. Moore - naked lipfern

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA