North America Native Plant

Dimeria Ornithopoda

Botanical name: Dimeria ornithopoda

USDA symbol: DIOR5

Habit: grass

Native status: Native to Pacific Basin excluding Hawaii  

Dimeria ornithopoda: An Enigmatic Pacific Grass Worth Knowing Sometimes the most fascinating plants are the ones that remain largely mysterious to the gardening world. Meet Dimeria ornithopoda, a native grass species that exemplifies how much we still have to discover about our planet’s botanical diversity. What Is Dimeria ornithopoda? Dimeria ...

Dimeria ornithopoda: An Enigmatic Pacific Grass Worth Knowing

Sometimes the most fascinating plants are the ones that remain largely mysterious to the gardening world. Meet Dimeria ornithopoda, a native grass species that exemplifies how much we still have to discover about our planet’s botanical diversity.

What Is Dimeria ornithopoda?

Dimeria ornithopoda is a grass species belonging to the Poaceae family—the same large plant family that includes familiar lawn grasses, bamboos, and cereal grains. However, unlike its well-known cousins, this particular grass species flies well under the radar of most gardeners and even many botanists.

This grass is native to the Pacific Basin, specifically documented in Palau, a beautiful island nation in the western Pacific Ocean. As a true native species, it has evolved to thrive in the unique conditions of its Pacific island home.

The Challenge of Growing Unknown Natives

Here’s where things get interesting—and a bit challenging. While we know Dimeria ornithopoda exists and where it calls home, detailed information about its appearance, growing requirements, and cultivation needs remains largely undocumented in horticultural literature.

This lack of information presents both an opportunity and a caution for gardeners:

  • The rarity of documented information suggests this may be a species at risk or with very specific habitat requirements
  • Without established cultivation practices, growing this grass would be experimental at best
  • Its native status makes it ecologically valuable, but responsible sourcing would be essential

Should You Try to Grow It?

For most gardeners, the honest answer is probably no—at least not yet. Here’s why:

Limited Availability: You’re unlikely to find this grass at your local nursery or even through specialty native plant suppliers. Its rarity and limited documentation mean it’s not in commercial cultivation.

Unknown Requirements: Without documented growing conditions, hardiness zones, or care instructions, you’d be gardening in the dark. This grass could require very specific soil conditions, moisture levels, or climate factors that are difficult to replicate outside its native range.

Conservation Concerns: If you did somehow encounter this species, it would be crucial to ensure any plant material was ethically and sustainably sourced to avoid impacting wild populations.

Better Alternatives for Pacific-Inspired Gardens

If you’re drawn to the idea of growing Pacific native grasses or creating a garden inspired by Pacific island flora, consider these alternatives:

  • Research well-documented native grasses from your own region
  • Explore other Dimeria species that may be better known and available
  • Connect with native plant societies or botanical gardens that specialize in Pacific flora
  • Consider growing other grass family plants that share similar aesthetic qualities

The Bigger Picture

Dimeria ornithopoda serves as a gentle reminder that our world still holds botanical mysteries. While this particular grass may not be destined for your garden bed anytime soon, its existence highlights the importance of botanical research, habitat conservation, and the incredible diversity of plant life that exists beyond our typical gardening catalogs.

Sometimes the best way to appreciate a rare native plant is simply to know it exists and to support the conservation efforts that protect the wild places where such species thrive.

Dimeria Ornithopoda

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Dimeria R. Br.

Species

Dimeria ornithopoda Trin.

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