North America Non-native Plant

Thyridolepis Mitchelliana

Botanical name: Thyridolepis mitchelliana

USDA symbol: THMI16

Habit: grass

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

Synonyms: Neurachne mitchelliana Nees (NEMI4)   

Thyridolepis mitchelliana: A Mysterious Australian Grass If you’ve stumbled upon the name Thyridolepis mitchelliana in your plant research, you might be wondering what exactly this grass is and whether it belongs in your garden. Well, you’re not alone in your curiosity – this is one of those plants that keeps ...

Thyridolepis mitchelliana: A Mysterious Australian Grass

If you’ve stumbled upon the name Thyridolepis mitchelliana in your plant research, you might be wondering what exactly this grass is and whether it belongs in your garden. Well, you’re not alone in your curiosity – this is one of those plants that keeps a pretty low profile in the gardening world!

What is Thyridolepis mitchelliana?

Thyridolepis mitchelliana is a grass species that belongs to the Poaceae family (the true grasses). You might also see it listed under its botanical synonym, Neurachne mitchelliana Nees, in older botanical references. Like many grasses, it’s a monocot – one of those plants that starts life with a single seed leaf rather than two.

The species name mitchelliana suggests this grass was likely named in honor of someone named Mitchell, possibly the explorer and botanist Thomas Mitchell, which gives us a hint about its Australian origins.

Where Does It Come From?

While specific distribution details are scarce, Thyridolepis mitchelliana appears to be native to Australia. Unfortunately, precise information about its natural range and habitat preferences isn’t readily available in common gardening resources.

The Garden Reality Check

Here’s where things get interesting (or frustrating, depending on how you look at it): Thyridolepis mitchelliana is somewhat of an enigma in the gardening world. There’s very little information available about:

  • Its appearance and size
  • Growing requirements
  • Hardiness zones
  • Cultivation methods
  • Wildlife or pollinator benefits
  • Landscape uses

Should You Try to Grow It?

The honest answer is that without more information about this species’ specific needs, invasive potential, or availability, it’s difficult to recommend for home gardens. If you’re interested in Australian native grasses, you might want to consider better-documented alternatives that are known to perform well in cultivation.

Some popular Australian native grasses that are well-suited for gardens include kangaroo grass (Themeda triandra) or weeping grass (Microlaena stipoides), depending on your climate and garden conditions.

A Plant Researcher’s Dream

For the botanically curious among us, Thyridolepis mitchelliana represents one of those fascinating plant mysteries. It’s a reminder that there are still many plant species out there that haven’t made the jump from botanical specimen to garden center shelf – and sometimes that’s perfectly okay!

If you do happen to encounter this grass in its native habitat or through specialized botanical collections, consider yourself lucky to witness a piece of Australia’s diverse grass flora. Just remember that not every plant needs to end up in our gardens to be valuable and important in the natural world.

The Bottom Line

While Thyridolepis mitchelliana might not be your next garden addition due to limited availability and growing information, it serves as a gentle reminder of the incredible diversity in the plant kingdom. Sometimes the most interesting plants are the ones that remain a little mysterious!

For now, if you’re looking to add Australian native grasses to your landscape, stick with the tried-and-true species that have established track records in cultivation. Your garden (and your sanity) will thank you for it!

Thyridolepis Mitchelliana

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

Thyridolepis S.T. Blake

Species

Thyridolepis mitchelliana (Nees) S.T. Blake

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