North America Non-native Plant

Inocarpus

Botanical name: Inocarpus

USDA symbol: INOCA

Native status: Non-native, reproduces and persists in the wild in Pacific Basin excluding Hawaii  

Inocarpus: A Pacific Island Plant Worth Considering If you’ve stumbled across the name Inocarpus in your gardening research, you might be wondering what exactly this plant is and whether it belongs in your landscape. While this genus isn’t commonly discussed in mainstream gardening circles, it has an interesting story that’s ...

Inocarpus: A Pacific Island Plant Worth Considering

If you’ve stumbled across the name Inocarpus in your gardening research, you might be wondering what exactly this plant is and whether it belongs in your landscape. While this genus isn’t commonly discussed in mainstream gardening circles, it has an interesting story that’s worth exploring.

What is Inocarpus?

Inocarpus is a plant genus that has made its way beyond its original Pacific Basin home. According to botanical records, this non-native species has been introduced to various Pacific regions where it now reproduces spontaneously in the wild and tends to persist without human intervention.

Where Does Inocarpus Grow?

Currently, Inocarpus can be found growing in Palau, though its native range extends throughout the Pacific Basin (excluding Hawaii). This limited distribution tells us that it has specific environmental preferences that may not translate well to all garden settings.

Should You Plant Inocarpus in Your Garden?

Here’s where things get a bit tricky. While Inocarpus isn’t listed as invasive or noxious, its status as a non-native species that readily establishes itself in the wild gives us pause. As responsible gardeners, we want to be thoughtful about introducing plants that might compete with local ecosystems.

The Native Alternative Approach

Before considering Inocarpus for your landscape, it’s worth exploring native alternatives that might serve similar purposes in your garden. Native plants offer several advantages:

  • Better support for local wildlife and pollinators
  • Adapted to local growing conditions
  • Lower maintenance requirements
  • No risk of becoming invasive

What We Don’t Know

Unfortunately, detailed information about Inocarpus cultivation is quite limited. We don’t have clear guidance on:

  • Specific growing conditions and care requirements
  • USDA hardiness zones
  • Mature size and growth habits
  • Pollinator and wildlife benefits
  • Aesthetic qualities and landscape uses

The Bottom Line

While Inocarpus might be an interesting botanical curiosity, the lack of detailed cultivation information combined with its non-native status makes it a questionable choice for most home gardeners. Instead of taking a chance on this lesser-known genus, consider researching native plants from your region that can provide beauty, ecological benefits, and proven garden performance.

If you’re drawn to plants with Pacific connections, look into native species from your area that might have similar characteristics or appeal. Your local native plant society or extension office can be excellent resources for finding the perfect native alternatives for your specific gardening goals.

Inocarpus

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

Inocarpus J.R. Forst. & G. Forst.

Species

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