North America Native Plant

Crabseye

Botanical name: Rhynchosia phaseoloides

USDA symbol: RHPH

Life cycle: perennial

Habit: vine

Native status: Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Synonyms: Dolicholus pyramidalis auct. non (Lam.) Britton & P. Wilson (DOPY)  âš˜  Glycine phaseoloides Sw. (GLPH)   

Crabseye: A Native Caribbean Climbing Bean You Should Know About Meet the crabseye (Rhynchosia phaseoloides), a charming native climbing plant that’s been quietly thriving in the Caribbean long before anyone thought to put it in a garden catalog. This perennial climber belongs to the bean family and brings a touch ...

Crabseye: A Native Caribbean Climbing Bean You Should Know About

Meet the crabseye (Rhynchosia phaseoloides), a charming native climbing plant that’s been quietly thriving in the Caribbean long before anyone thought to put it in a garden catalog. This perennial climber belongs to the bean family and brings a touch of wild Caribbean character to any landscape lucky enough to host it.

What Makes Crabseye Special

Crabseye is a true Caribbean native, calling Puerto Rico and the U.S. Virgin Islands home. As a twining, climbing plant, it can develop both woody and herbaceous stems that love to scramble up whatever support they can find. Think of it as nature’s way of adding vertical interest to the landscape – no planning required!

This plant grows naturally in Puerto Rico and the Virgin Islands, where it’s perfectly adapted to the local climate and conditions.

Why Consider Growing Crabseye

If you’re gardening in Puerto Rico or the U.S. Virgin Islands, here’s why crabseye deserves a spot on your plant wish list:

  • True native credentials: Supporting local ecosystems has never been easier
  • Climbing habit: Perfect for adding height and structure to garden spaces
  • Perennial nature: Once established, it’s in it for the long haul
  • Low-maintenance potential: Native plants typically require less fussing once they settle in

Where It Thrives in the Garden

As a facultative upland plant, crabseye usually prefers well-drained areas but won’t throw a tantrum if it occasionally gets its feet wet. This flexibility makes it a great choice for various garden situations, from slopes to garden borders where drainage varies.

The climbing nature of crabseye makes it ideal for:

  • Training up trellises or arbors
  • Naturalizing along fence lines
  • Adding structure to native plant gardens
  • Creating habitat in wildlife-friendly landscapes

Growing Crabseye Successfully

Here’s where we hit a bit of a mystery – detailed cultivation information for crabseye is surprisingly scarce. This likely means it’s not commonly grown in traditional gardens, despite being a lovely native option. What we do know suggests it’s probably quite adaptable, given its native range and facultative upland status.

For the adventurous gardener wanting to try crabseye:

  • Provide some form of support for its climbing habit
  • Choose a location with good drainage, though occasional moisture is tolerated
  • Start with locally sourced plants or seeds when possible
  • Give it space to climb and spread naturally

A Plant Worth Exploring

Crabseye represents one of those wonderful native plants that hasn’t quite made it into mainstream gardening consciousness yet. For gardeners in Puerto Rico and the U.S. Virgin Islands, it offers a chance to grow something truly local and authentic to your landscape.

While detailed growing guides might be limited, sometimes the best garden adventures come from experimenting with plants that haven’t been over-studied and over-complicated by too much advice. If you can get your hands on some crabseye, you’ll be growing a piece of Caribbean botanical heritage – and who knows? You might just become the local expert on this charming native climber.

Just remember to source your plants responsibly and enjoy watching this native beauty find its place in your garden ecosystem.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Caribbean

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Crabseye

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

Rhynchosia Lour. - snoutbean

Species

Rhynchosia phaseoloides (Sw.) DC. - crabseye

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