North America Native Plant

Western Cliff Fern

Botanical name: Woodsia obtusa occidentalis

USDA symbol: WOOBO2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Western Cliff Fern: A Lesser-Known Native Fern Worth Knowing If you’re diving deep into the world of native ferns, you might come across the intriguingly named western cliff fern (Woodsia obtusa occidentalis). This perennial fern represents a fascinating piece of our native flora puzzle, though it’s one that doesn’t get ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Western Cliff Fern: A Lesser-Known Native Fern Worth Knowing

If you’re diving deep into the world of native ferns, you might come across the intriguingly named western cliff fern (Woodsia obtusa occidentalis). This perennial fern represents a fascinating piece of our native flora puzzle, though it’s one that doesn’t get much spotlight in typical gardening conversations.

What Makes This Fern Special?

The western cliff fern is a native species found in the south-central United States, making its home in Arkansas, Kansas, Oklahoma, and Texas. As a true native, it has evolved alongside local ecosystems and wildlife, making it a potentially valuable addition to native plant gardens.

One thing that sets this fern apart is its classification as a forb rather than what we typically think of as a woody fern. This means it’s a vascular plant without significant woody tissue above ground, with its growing points located at or below the soil surface – a clever adaptation for surviving challenging conditions.

The Reality Check: Limited Information Available

Here’s where things get interesting (and a bit frustrating for plant enthusiasts): detailed information about Woodsia obtusa occidentalis specifically is quite limited. This particular designation appears to be a regional variation or subspecies that hasn’t been extensively studied or documented in mainstream horticultural sources.

Conservation Status: Something to Consider

The western cliff fern carries a Global Conservation Status of S5T3T4, which indicates it may have some conservation concerns. If you’re interested in growing this fern, it’s crucial to source it responsibly – meaning from reputable native plant nurseries or propagation programs rather than wild collection.

Should You Grow Western Cliff Fern?

Given the limited information available about this specific fern’s cultivation requirements and garden performance, it’s not the easiest recommendation to make. Here’s what we know:

  • It’s a true native species, which is always a plus for supporting local ecosystems
  • As a perennial, it should return year after year once established
  • Its natural range suggests it’s adapted to south-central climate conditions
  • The conservation status means it should only be grown from responsibly sourced material

Alternative Native Fern Options

If you’re drawn to native ferns but find the western cliff fern too elusive, consider these well-documented native alternatives that might thrive in your region:

  • Christmas fern (Polystichum acrostichoides)
  • Maidenhair fern (Adiantum pedatum)
  • Royal fern (Osmunda regalis)
  • Cinnamon fern (Osmundastrum cinnamomeum)

The Bottom Line

The western cliff fern represents one of those intriguing native plants that reminds us how much we still have to learn about our local flora. While it might not be the easiest fern to research, grow, or even find, it serves as a good reminder to look beyond the common garden center offerings and appreciate the diversity of native plants in our regions.

If you do encounter this fern or have the opportunity to grow it through a reputable native plant source, you’d be participating in the conservation and appreciation of a lesser-known piece of our natural heritage. Just remember: responsible sourcing is key, and sometimes the best thing we can do for rare native plants is simply learn to identify and appreciate them in their natural habitats.

Western Cliff Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Dryopteridaceae Herter - Wood Fern family

Genus

Woodsia R. Br. - cliff fern

Species

Woodsia obtusa (Spreng.) Torr. - bluntlobe cliff fern

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