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North America Non-native Plant

Achnatherum Bromoides

Achnatherum bromoides: The Mystery Grass That’s Harder to Find Than Your Car Keys Ever stumbled across a plant name that seems to exist in botanical limbo? Meet Achnatherum bromoides, a grass species that’s about as elusive as a unicorn in your backyard. If you’re scratching your head wondering what this ...

Achnatherum bromoides: The Mystery Grass That’s Harder to Find Than Your Car Keys

Ever stumbled across a plant name that seems to exist in botanical limbo? Meet Achnatherum bromoides, a grass species that’s about as elusive as a unicorn in your backyard. If you’re scratching your head wondering what this plant actually is, you’re not alone – even botanists seem to have mixed feelings about this particular grass.

What We Know (Which Isn’t Much)

Achnatherum bromoides belongs to the graminoid family, which is just a fancy way of saying it’s a grass or grass-like plant. Think of graminoids as the grass gang – they include true grasses, sedges, rushes, and their leafy relatives. This particular species has had a bit of an identity crisis over the years, previously going by names like Stipa aristella and Stipa bromoides.

The Great Unknown

Here’s where things get interesting (or frustrating, depending on your perspective). Information about Achnatherum bromoides is scarcer than hen’s teeth. We don’t have reliable data about:

  • Where it naturally occurs
  • What it looks like in detail
  • How big it gets
  • What growing conditions it prefers
  • Whether it’s native, invasive, or rare

This lack of information could mean several things: it might be an outdated botanical name, an extremely localized species, or simply a plant that hasn’t caught the attention of modern plant databases and gardening resources.

Should You Try to Grow It?

Given the mystery surrounding this plant, hunting down Achnatherum bromoides for your garden might be like searching for the Holy Grail. Even if you found seeds or plants labeled with this name, you’d have no guarantee of what you’re actually getting or how to care for it properly.

Instead of chasing botanical ghosts, consider these well-documented native grass alternatives that are much easier to find and grow:

  • Little bluestem (Schizachyrium scoparium)
  • Buffalo grass (Poaceae dactyloides)
  • Prairie dropseed (Sporobolus heterolepis)
  • Blue grama (Bouteloua gracilis)

The Bottom Line

While Achnatherum bromoides might sound intriguingly exotic, the reality is that growing a plant with virtually no available care information is like trying to bake a cake without a recipe – possible, but probably not worth the frustration. Your garden (and your sanity) will likely be happier with well-documented native grasses that come with actual growing instructions and guaranteed results.

Sometimes the best gardening advice is knowing when to pass on the botanical mysteries and stick with the tried-and-true plants that will actually thrive in your landscape.

Achnatherum Bromoides

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

Achnatherum P. Beauv. - needlegrass

Species

Achnatherum bromoides (L.) P. Beauv.

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