North America Non-native Plant

Plectrachne Bynoei

Botanical name: Plectrachne bynoei

USDA symbol: PLBY

Habit: grass

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

Plectrachne bynoei: An Elusive Australian Native Grass If you’ve stumbled across the name Plectrachne bynoei in your plant research, you’re likely dealing with one of botany’s more mysterious characters. This Australian native grass is so under-documented that even seasoned gardeners and botanists might scratch their heads when encountering it. What ...

Plectrachne bynoei: An Elusive Australian Native Grass

If you’ve stumbled across the name Plectrachne bynoei in your plant research, you’re likely dealing with one of botany’s more mysterious characters. This Australian native grass is so under-documented that even seasoned gardeners and botanists might scratch their heads when encountering it.

What We Know (And What We Don’t)

Plectrachne bynoei belongs to the grass family (Poaceae) and is classified as a graminoid – that’s botanist-speak for grass or grass-like plant. Beyond this basic classification, concrete information about this particular species is surprisingly scarce. We don’t even have a widely recognized common name for it, which tells you something about how rarely it appears in cultivation or popular gardening circles.

Based on its genus, Plectrachne bynoei is likely native to Australia, where the Plectrachne genus naturally occurs. However, specific details about its geographic distribution remain unclear in readily available sources.

The Challenge of Rare and Undocumented Plants

This lack of information presents both a challenge and an opportunity for native plant enthusiasts. On one hand, the scarcity of growing information makes it difficult to provide specific cultivation advice. On the other hand, lesser-known native species like this one might hold untapped potential for specialized gardens or restoration projects.

What This Means for Gardeners

If you’re considering Plectrachne bynoei for your garden, here’s what you should know:

  • Sourcing may be extremely difficult, as it’s rarely found in commercial cultivation
  • Growing requirements are largely unknown, making successful cultivation a matter of educated guessing
  • Its ecological role and benefits to wildlife are undocumented in common sources
  • Hardiness zones and specific growing conditions remain a mystery

Better-Known Alternatives

If you’re drawn to Australian native grasses, you might have better success with more widely cultivated species that offer known benefits and clear growing instructions. Many other Australian native grasses are well-documented, readily available, and proven performers in cultivation.

The Bigger Picture

Plants like Plectrachne bynoei remind us that there’s still so much we don’t know about our native flora. While this particular species remains largely mysterious to home gardeners, it represents the incredible diversity of grasses that exist in Australia’s ecosystems.

If you do encounter this plant in the wild or through specialized native plant sources, consider it a rare glimpse into Australia’s rich botanical heritage. Just remember that without established cultivation practices, growing it successfully would be largely experimental.

The Bottom Line

Plectrachne bynoei serves as a fascinating example of how much botanical diversity remains under-explored in home gardening. While we can’t provide specific growing advice due to the lack of available information, its existence reminds us of the incredible variety of native plants waiting to be better understood and potentially integrated into sustainable landscaping practices.

For now, this grass remains more of a botanical curiosity than a practical garden choice – but who knows what future research might reveal about its potential?

Plectrachne Bynoei

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

Plectrachne Henrard

Species

Plectrachne bynoei C.E. Hubb.

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