North America Native Plant

Birdfoot Cliffbrake

Botanical name: Pellaea mucronata mucronata

USDA symbol: PEMUM

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Pellaea longimucronata Hook. (PELO8)  âš˜  Pellaea mucronata (D.C. Eaton) D.C. Eaton var. mucronata (PEMUM3)   

Birdfoot Cliffbrake: A Charming Native Fern for Dry Gardens If you’re looking for a unique, drought-tolerant native plant that adds delicate texture to your garden without requiring constant watering, meet the birdfoot cliffbrake (Pellaea mucronata mucronata). This little fern breaks all the rules about what we think ferns should be ...

Birdfoot Cliffbrake: A Charming Native Fern for Dry Gardens

If you’re looking for a unique, drought-tolerant native plant that adds delicate texture to your garden without requiring constant watering, meet the birdfoot cliffbrake (Pellaea mucronata mucronata). This little fern breaks all the rules about what we think ferns should be – instead of loving moisture and shade, this southwestern native thrives in rocky, dry conditions that would make most of its cousins wilt.

What Makes Birdfoot Cliffbrake Special

The birdfoot cliffbrake is a perennial fern that gets its charming common name from its distinctive fronds, which split into segments that resemble a bird’s foot. Unlike the lush, tropical-looking ferns you might picture, this species sports blue-green to gray-green foliage that perfectly complements the arid landscapes it calls home.

As a native species to the lower 48 states, this fern has evolved to thrive in the challenging conditions of the American Southwest. You’ll find it naturally growing on rocky cliffs and in crevices throughout Arizona, California, Nevada, and Oregon, where it has mastered the art of surviving with minimal water.

Why Consider This Fern for Your Garden

The birdfoot cliffbrake offers several compelling reasons to earn a spot in your landscape:

  • Water-wise gardening: Once established, this fern requires minimal supplemental watering, making it perfect for drought-conscious gardeners
  • Unique texture: Its delicate, divided fronds provide an interesting contrast to broader-leaved plants
  • Native plant benefits: Supporting local ecosystems by choosing plants that naturally belong in your region
  • Low maintenance: Requires little care once established in appropriate conditions
  • Rock garden star: Thrives in the well-draining conditions that challenge many other plants

Perfect Garden Settings

This adaptable fern shines in several garden styles:

  • Rock gardens: Its natural habitat makes it ideal for tucking between stones and boulders
  • Xeriscape gardens: A perfect addition to water-wise landscaping
  • Native plant gardens: Provides authentic regional character
  • Mediterranean-style landscapes: Complements the dry, sunny aesthetic

Growing Conditions and Care

Success with birdfoot cliffbrake comes from mimicking its natural habitat. This fern thrives in USDA hardiness zones 8-10 and prefers:

  • Soil: Well-draining, rocky, or sandy soil – avoid heavy clay or constantly moist conditions
  • Light: Full sun to partial shade
  • Water: Drought-tolerant once established; overwatering is more harmful than underwatering
  • Placement: Rock crevices, raised beds, or sloped areas with excellent drainage

Planting and Care Tips

Getting your birdfoot cliffbrake off to a good start is straightforward:

  • Plant in spring or fall when temperatures are moderate
  • Ensure excellent drainage – if your soil holds water, create raised beds or add plenty of gritty amendments
  • Water regularly the first growing season to establish roots, then reduce watering significantly
  • Avoid fertilizing – this fern is adapted to lean soils
  • Remove any dead fronds in late winter to make room for new growth

What to Expect

While birdfoot cliffbrake won’t attract butterflies like flowering plants (ferns don’t produce nectar), it contributes to garden biodiversity in other ways. Its unique form and texture create visual interest year-round, and its drought tolerance makes it a reliable performer even during dry spells.

This fern grows slowly and stays relatively compact, making it suitable for smaller spaces or as an accent plant among other drought-tolerant natives. Don’t expect rapid growth – good things come to those who wait, and this charming fern is definitely worth the patience.

The Bottom Line

Birdfoot cliffbrake proves that not all ferns are created equal. If you’re gardening in the Southwest and want to add native character to your landscape while conserving water, this unique little fern deserves serious consideration. Just remember: when it comes to this plant, less is more – less water, less fuss, and more charm than you might expect from such a humble native.

Birdfoot Cliffbrake

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

Pellaea Link - cliffbrake

Species

Pellaea mucronata (D.C. Eaton) D.C. Eaton - birdfoot cliffbrake

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