North America Native Plant

Beaver Indian Breadroot

Botanical name: Pediomelum castoreum

USDA symbol: PECA24

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Psoralea castorea S. Watson (PSCA4)   

Beaver Indian Breadroot: A Rare Desert Gem Worth Growing Responsibly If you’re looking to add a touch of desert elegance to your southwestern garden while supporting conservation efforts, beaver Indian breadroot might just be your new favorite native plant. This charming perennial forb, scientifically known as Pediomelum castoreum, is a ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Beaver Indian Breadroot: A Rare Desert Gem Worth Growing Responsibly

If you’re looking to add a touch of desert elegance to your southwestern garden while supporting conservation efforts, beaver Indian breadroot might just be your new favorite native plant. This charming perennial forb, scientifically known as Pediomelum castoreum, is a hidden treasure of the American Southwest that deserves more attention from native plant enthusiasts.

What Is Beaver Indian Breadroot?

Beaver Indian breadroot is a perennial herbaceous plant that belongs to the pea family. As a forb, it lacks woody stems but makes up for it with its distinctive silvery-green compound leaves and clusters of small, pea-like flowers that bloom in shades of purple to pink. Don’t let its modest appearance fool you – this plant packs a punch when it comes to both beauty and ecological value.

Where Does It Call Home?

This native beauty calls the southwestern United States home, specifically thriving in Arizona, California, and Nevada. It’s perfectly adapted to the harsh desert conditions of these regions, making it an excellent choice for gardeners in similar climates.

Why Should You Consider Growing It?

Here’s where things get interesting – and important. Beaver Indian breadroot has a Global Conservation Status of S3, which means it’s considered vulnerable in the wild. This makes it a plant worth growing for conservation purposes, but also one that requires responsible sourcing.

The benefits include:

  • Supporting local pollinator populations with its attractive flowers
  • Adding unique texture and color to desert landscapes
  • Requiring minimal water once established
  • Helping preserve a vulnerable native species
  • Providing authentic regional character to southwestern gardens

A Word of Caution: Source Responsibly

Before you rush to add this beauty to your garden, here’s the important part: because beaver Indian breadroot is considered vulnerable, it’s crucial to obtain plants or seeds only from reputable nurseries that propagate them responsibly. Never collect from wild populations, as this could further threaten already vulnerable populations.

Growing Conditions and Care

The good news is that once you’ve sourced your plant responsibly, beaver Indian breadroot is relatively easy to grow if you can provide the right conditions:

  • Sunlight: Full sun exposure
  • Soil: Well-draining sandy or rocky soils
  • Water: Drought tolerant once established; avoid overwatering
  • Climate: USDA hardiness zones 8-10
  • Maintenance: Low maintenance once established

Perfect for Desert and Xeriscape Gardens

Beaver Indian breadroot shines in desert gardens, xeriscapes, and native plant landscapes. Its low water requirements and natural adaptation to harsh conditions make it an ideal choice for water-wise gardening. Use it as ground cover, in rock gardens, or as part of a mixed native planting scheme.

Pollinator Paradise

Your local pollinators will thank you for planting beaver Indian breadroot. The plant’s small but numerous flowers provide nectar and pollen for native bees and butterflies, making it a valuable addition to any pollinator-friendly garden.

The Bottom Line

Beaver Indian breadroot is a wonderful choice for southwestern gardeners who want to support native biodiversity while creating beautiful, water-wise landscapes. Just remember the golden rule: source responsibly. By choosing propagated plants over wild-collected specimens, you’ll be doing your part to help this vulnerable species thrive both in gardens and in the wild.

With its charming flowers, drought tolerance, and ecological benefits, beaver Indian breadroot proves that sometimes the most humble native plants can make the biggest impact in our gardens – and our ecosystems.

Beaver Indian Breadroot

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Pediomelum Rydb. - Indian breadroot

Species

Pediomelum castoreum (S. Watson) Rydb. - beaver Indian breadroot

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