North America Native Plant

Subterranean Indian Breadroot

Botanical name: Pediomelum hypogaeum var. scaposum

USDA symbol: PEHYS

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Pediomelum goughiae Tharp & F.A. Barkley (PEGO3)  âš˜  Pediomelum pentaphyllum (L.) Rydb. var. scaposum (A. Gray) J. Grimes (PEPES)  âš˜  Psoralea hypogaea Nutt. ex Torr. & A. Gray var. scaposa A. Gray (PSHYS)  âš˜  Psoralea hypogaea Nutt. ex Torr. & A. Gray ssp. scaposa (A. Gray) D.J. Ockendon (PSHYS2)  âš˜  Psoralea scaposa (A. Gray) J.F. Macbr. (PSSC8)   

Subterranean Indian Breadroot: A Hidden Gem of Texas Native Plants If you’re searching for unique native plants to add authenticity to your Texas garden, you might want to consider the subterranean Indian breadroot (Pediomelum hypogaeum var. scaposum). This lesser-known variety of a fascinating native species offers gardeners a chance to ...

Subterranean Indian Breadroot: A Hidden Gem of Texas Native Plants

If you’re searching for unique native plants to add authenticity to your Texas garden, you might want to consider the subterranean Indian breadroot (Pediomelum hypogaeum var. scaposum). This lesser-known variety of a fascinating native species offers gardeners a chance to grow something truly special – though you’ll need to be patient and do a bit of detective work to find it!

What Makes This Plant Special

The subterranean Indian breadroot is a native Texas perennial forb, which means it’s a non-woody plant that comes back year after year. As its common name suggests, this plant has an interesting underground lifestyle – much of its character lies beneath the soil surface. It belongs to the pea family and has historically been important to indigenous peoples as a food source.

You might also encounter this plant listed under several scientific synonyms, including Psoralea hypogaea var. scaposa and Pediomelum goughiae, so don’t be confused if you see different names referring to the same plant.

Where You’ll Find It Growing Wild

This variety is native to Texas, making it perfectly adapted to Lone Star State growing conditions. As a plant that evolved in Texas soils and climate, it’s naturally suited to handle the unique challenges that local gardeners face.

Should You Plant Subterranean Indian Breadroot?

Here’s where things get interesting – and a bit challenging. While this native plant has obvious appeal for gardeners wanting to support local ecosystems and preserve native biodiversity, finding reliable information about cultivation can be tricky. This variety isn’t commonly available in mainstream nurseries, and detailed growing guides are scarce.

The Reality of Growing This Plant

If you’re determined to grow subterranean Indian breadroot, be prepared for some challenges:

  • Limited availability from commercial sources
  • Scarce cultivation information specific to this variety
  • May require specialized growing knowledge
  • Best suited for dedicated native plant enthusiasts

What We Know About Care

Since this is a Texas native forb, it’s likely adapted to:

  • Hot, dry summers typical of Texas
  • Well-draining soils
  • Natural rainfall patterns of its native region
  • Local soil conditions and pH levels

Alternative Considerations

If you’re interested in this plant but finding it challenging to locate or grow, consider exploring other members of the Pediomelum genus or related native legumes that might be more readily available. Many Texas native plants offer similar ecological benefits with better cultivation resources.

For the Adventurous Gardener

If you do manage to find subterranean Indian breadroot, you’ll be growing a piece of Texas botanical heritage. This plant represents the kind of specialized native flora that makes each region’s natural landscape unique. Just be prepared for a learning curve and possibly some trial and error as you figure out what makes this particular variety happy in your garden.

Whether you decide to pursue this botanical treasure hunt or choose more readily available native alternatives, you’re making a great choice by focusing on plants that naturally belong in the Texas landscape!

Subterranean 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 hypogaeum (Nutt. ex Torr. & A. Gray) Rydb. - subterranean 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