Native Plants

Missouri Cliffbrake

Pellaea glabella missouriensis

USDA symbol: PEGLM

perennial forb

Lower 48 states: native

Meet the Missouri cliffbrake (Pellaea glabella missouriensis), a fascinating native fern that’s as elusive as it is intriguing. If you’re a plant enthusiast who loves discovering botanical treasures hiding in plain sight, this little-known species might just capture your imagination. The Missouri cliffbrake is a perennial fern native to the ...

Missouri Cliffbrake may be listed as rare in your area.
Global Conservation Status

Status: S5T1T2 | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of declines or threats.

Missouri Cliffbrake: A Rare Native Fern Worth Knowing

Meet the Missouri cliffbrake (Pellaea glabella missouriensis), a fascinating native fern that’s as elusive as it is intriguing. If you’re a plant enthusiast who loves discovering botanical treasures hiding in plain sight, this little-known species might just capture your imagination.

What Exactly is Missouri Cliffbrake?

The Missouri cliffbrake is a perennial fern native to the lower 48 states, though you’ll specifically find it calling Missouri home. This species belongs to the Pellaea genus, commonly known as cliffbrake ferns, and goes by the scientific name Pellaea glabella missouriensis. You might also see it referenced by its synonym, Pellaea glabella Mett. ex Kuhn var. missouriensis Gastony.

Where Does It Grow?

This native fern has a very limited geographical range, currently documented only in Missouri. Its restricted distribution makes it quite special – and quite rare.

  • Species observed
  • No observations

A Word About Rarity

Here’s something important to know: Missouri cliffbrake has a Global Conservation Status of S5T1T2, which indicates it may be quite rare. If you’re lucky enough to encounter this fern in the wild, it’s crucial to appreciate it from a distance and never collect it without proper permits. If you’re interested in growing it, only seek out responsibly sourced material from reputable native plant nurseries.

Is Missouri Cliffbrake Beneficial for Gardens?

While we don’t have complete information about this fern’s specific growing requirements or garden performance, native ferns in general offer several benefits:

  • They add texture and visual interest to shaded areas
  • They support local ecosystems as part of the native plant community
  • They often require less maintenance than non-native alternatives once established
  • They provide habitat structure for small wildlife and beneficial insects

Given its rarity, Missouri cliffbrake would be more of a conservation curiosity than a typical garden plant. It’s the kind of species that appeals to collectors of rare natives and those passionate about preserving local biodiversity.

How to Identify Missouri Cliffbrake

As a member of the cliffbrake family, this fern likely shares characteristics common to its relatives, though specific identification details for this particular subspecies aren’t widely documented. If you think you’ve spotted one in Missouri, consider reaching out to local botanists or native plant societies for proper identification – you might have found something quite special!

The Bottom Line

Missouri cliffbrake represents the kind of botanical treasure that makes native plant exploration so exciting. While it’s not a plant you’ll likely encounter at your local garden center, knowing about it enriches our understanding of Missouri’s native flora. If you’re interested in supporting rare native species, consider getting involved with local conservation groups or native plant societies – they often work to protect and study species like this remarkable little fern.

Remember, the best way to appreciate rare plants like Missouri cliffbrake is through observation, photography, and supporting conservation efforts rather than collection. Every rare native species plays a vital role in maintaining the delicate balance of our local ecosystems.

Pellaea glabella missouriensis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Pellaea glabella missouriensis is also known as:

Pellaea glabella ex Kuhn var. missouriensis | USDA symbol: PEGLM2

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Fern
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Division: Pteridophyta - Ferns
Class: Filicopsida
Order: Polypodiales
Family: Pteridaceae E.D.M. Kirchn. - Maidenhair Fern family
Genus: Pellaea Link - cliffbrake

Species: Pellaea glabella Mett. ex Kuhn - smooth cliffbrake

Subspecies: Pellaea glabella Mett. ex Kuhn ssp. missouriensis (Gastony) Windham - Missouri cliffbrake

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