North America Non-native Plant

Gamba-pea

Botanical name: Crotalaria goreensis

USDA symbol: CRGO3

Native status: Not native but doesn't reproduce and persist in the wild

Gamba-Pea: The Mysterious Crotalaria goreensis If you’ve stumbled across the name gamba-pea or its botanical name Crotalaria goreensis in your plant research, you might be wondering what exactly this plant is and whether it belongs in your garden. Well, you’re not alone in your curiosity – this particular member of ...

Gamba-Pea: The Mysterious Crotalaria goreensis

If you’ve stumbled across the name gamba-pea or its botanical name Crotalaria goreensis in your plant research, you might be wondering what exactly this plant is and whether it belongs in your garden. Well, you’re not alone in your curiosity – this particular member of the Crotalaria genus is quite the mystery plant!

What We Know About Gamba-Pea

Crotalaria goreensis, commonly known as gamba-pea, belongs to the large Crotalaria genus, which includes hundreds of species commonly called rattlepods or rattlebox plants. These plants are part of the legume family, known for their distinctive seed pods that rattle when mature.

However, here’s where things get interesting (and a bit frustrating for plant enthusiasts): specific, reliable information about Crotalaria goreensis is remarkably scarce. This could mean several things – it might be an extremely rare species, a regional name that’s not widely recognized, or possibly even an outdated botanical classification.

The Geographic Mystery

Unfortunately, the native range and geographical distribution of this specific Crotalaria species remains unclear from available sources. Without knowing where this plant naturally occurs, it’s impossible to determine its native status in any particular region.

Should You Plant Gamba-Pea?

Given the lack of reliable information about Crotalaria goreensis, we’d recommend taking a cautious approach. Here’s why:

  • Unknown invasive potential
  • Unclear growing requirements
  • Uncertain native status
  • Limited availability and sourcing concerns

Many Crotalaria species can be aggressive spreaders, and some are even considered invasive in certain regions. Without specific information about this particular species, it’s better to err on the side of caution.

Better Native Alternatives

Instead of taking a chance on the mysterious gamba-pea, consider these well-documented native legumes that offer similar benefits:

  • Wild lupine (Lupinus perennis) for butterfly gardens
  • Partridge pea (Chamaecrista fasciculata) for prairie plantings
  • Wild senna (Senna hebecarpa) for pollinator support
  • Lead plant (Amorpha canescens) for dry soil areas

These alternatives are well-researched, have clear growing guidelines, and offer known benefits to wildlife and pollinators.

The Bottom Line

While the mystery surrounding Crotalaria goreensis might make it seem intriguing, the lack of reliable information makes it a risky choice for home gardeners. When in doubt, it’s always best to choose well-documented native plants that you know will thrive in your specific conditions and support local ecosystems.

If you’re absolutely determined to learn more about gamba-pea, we’d recommend consulting with local botanical institutions, native plant societies, or university extension services who might have region-specific knowledge about this elusive species.

Gamba-pea

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

Crotalaria L. - rattlebox

Species

Crotalaria goreensis Guill. & Perr. - gamba-pea

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