North America Non-native Plant

Goosegrass

Botanical name: Acrachne

USDA symbol: ACRAC

Life cycle: annual

Habit: grass

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Goosegrass (Acrachne): An Obscure Annual Grass Worth Knowing About If you’ve stumbled across the name goosegrass in your gardening research, you might be scratching your head wondering what exactly Acrachne is all about. Don’t worry – you’re not alone! This lesser-known annual grass is one of those plants that flies ...

Goosegrass (Acrachne): An Obscure Annual Grass Worth Knowing About

If you’ve stumbled across the name goosegrass in your gardening research, you might be scratching your head wondering what exactly Acrachne is all about. Don’t worry – you’re not alone! This lesser-known annual grass is one of those plants that flies under the radar, even among dedicated gardeners.

What Exactly is Goosegrass?

Acrachne, commonly called goosegrass, is an annual grass that belongs to the graminoid family – that’s fancy talk for grass and grass-like plants. Think of it as a distant cousin to the more familiar grasses in your lawn, but with its own unique characteristics that set it apart from the crowd.

This unassuming plant is what botanists call a non-native species, meaning it didn’t originally call North America home. Instead, it made its way here from elsewhere and has managed to establish itself in the wild, reproducing without any help from us humans.

Where Can You Find It?

Currently, goosegrass has been documented growing in California, where it has found suitable conditions to thrive. Its limited distribution suggests it has specific environmental preferences that aren’t met everywhere across the continent.

Should You Consider Growing Goosegrass?

Here’s where things get interesting – and a bit complicated. While Acrachne isn’t considered invasive or problematic, it’s also not exactly what you’d call a showstopper in the garden. As an annual grass with modest ornamental appeal, it’s more of a botanical curiosity than a landscape star.

The Case for Native Alternatives

If you’re looking to add grasses to your garden (and who isn’t these days?), you might want to consider some fantastic native options instead. Native grasses offer several advantages:

  • They’re perfectly adapted to local growing conditions
  • They support local wildlife and pollinators
  • They typically require less water and maintenance once established
  • They contribute to the local ecosystem’s health

Some beautiful native grass alternatives to consider include little bluestem, buffalo grass, or purple needlegrass, depending on your specific location and growing conditions.

Growing Conditions and Care

If you’re still curious about trying goosegrass, keep in mind that detailed growing information is somewhat limited due to its obscure nature. Based on its presence in California and its tropical origins, it likely prefers:

  • Full sun to partial shade
  • Well-draining soil
  • Warm growing conditions
  • Minimal winter cold tolerance

As an annual, you’d need to replant it each year or allow it to self-seed if conditions are right.

The Bottom Line

While Acrachne isn’t going to win any beauty contests or become the next big thing in landscape design, it’s a perfectly harmless little grass that adds to the diversity of plant life. However, for most gardeners, exploring the wonderful world of native grasses will likely provide more bang for your buck – and more benefits for local wildlife too.

Sometimes the most rewarding gardening adventures come from discovering the incredible native plants that have been growing in your area for centuries, just waiting for you to notice them!

Goosegrass

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

Acrachne Chiov. - goosegrass

Species

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