North America Non-native Plant

Barbasco

Botanical name: Lonchocarpus urucu

USDA symbol: LOUR

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

Barbasco (Lonchocarpus urucu): A Mystery Plant Worth Investigating If you’ve stumbled upon the name barbasco or Lonchocarpus urucu in your plant research, you’re not alone in finding limited information about this intriguing species. This member of the legume family has managed to keep a relatively low profile in the gardening ...

Barbasco (Lonchocarpus urucu): A Mystery Plant Worth Investigating

If you’ve stumbled upon the name barbasco or Lonchocarpus urucu in your plant research, you’re not alone in finding limited information about this intriguing species. This member of the legume family has managed to keep a relatively low profile in the gardening world, making it something of a botanical mystery.

What We Know About Barbasco

Barbasco belongs to the Lonchocarpus genus, which includes various tropical and subtropical trees and shrubs. While the exact details of Lonchocarpus urucu remain elusive in horticultural literature, the name barbasco has been associated with several plant species across Latin America, often referring to plants with traditional uses.

Geographic Distribution: A Puzzle Piece Missing

Unfortunately, the specific native range and geographical distribution of Lonchocarpus urucu isn’t well-documented in readily available sources. This lack of information makes it challenging to determine where this plant naturally occurs and whether it might be suitable for your local climate.

Should You Plant Barbasco?

Here’s where things get tricky. Without clear information about this plant’s:

  • Growth habits and mature size
  • Preferred growing conditions
  • Potential invasive tendencies
  • Wildlife and pollinator benefits
  • USDA hardiness zones

It’s difficult to make a definitive recommendation about whether barbasco belongs in your garden. The responsible approach is to proceed with caution.

The Safe Gardening Approach

If you’re interested in Lonchocarpus urucu, consider these steps:

  • Consult with local native plant societies or botanical gardens
  • Contact your county extension office for regional expertise
  • Verify the plant’s status with local environmental authorities
  • Consider well-documented native alternatives that provide similar benefits

Alternative Native Options

While researching barbasco, why not explore native legumes that are well-documented for your region? Many native trees and shrubs in the legume family offer excellent benefits like nitrogen fixation, wildlife habitat, and beautiful flowers. Your local native plant society can recommend species that are proven performers in your area.

The Bottom Line

Lonchocarpus urucu remains something of an enigma in the gardening world. Without reliable information about its growing requirements, potential impacts, and benefits, it’s wise to stick with well-researched native plants that you know will thrive in your garden while supporting local ecosystems.

Sometimes the most responsible gardening decision is admitting when we need more information – and barbasco appears to be one of those cases where patience and further research are the best tools in your gardening toolkit.

Barbasco

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

Lonchocarpus Kunth - lancepod

Species

Lonchocarpus urucu Killip & A.C. Sm. - barbasco

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