Rough Barnyardgrass: A Native Grass You Probably Don’t Want to Plant
If you’ve ever wandered through a damp meadow, agricultural field, or disturbed area and noticed a somewhat scraggly-looking grass with dense, bristly seed heads, you may have encountered rough barnyardgrass (Echinochloa muricata var. microstachya). This native annual grass is one of those plants that’s more likely to show up uninvited in your garden than to be deliberately planted there.
What Exactly is Rough Barnyardgrass?
Rough barnyardgrass is a graminoid – that’s botanist-speak for grass or grass-like plant. As an annual, it completes its entire life cycle in just one growing season, sprouting from seed in spring, growing through summer, producing seeds in fall, and then dying with the first frost. It’s part of a large group of plants that includes not just true grasses, but also sedges, rushes, and other grass-like species.
This particular variety has quite a few scientific aliases – botanists love their synonyms! You might see it listed under names like Echinochloa microstachya or Echinochloa occidentalis in older references, but they’re all referring to the same plant.
Where Does It Call Home?
Here’s where rough barnyardgrass gets interesting from a native plant perspective. This grass is genuinely native to both Canada and the lower 48 states, making it a true North American native. You can find it growing naturally across an impressively wide range, from Alabama to Saskatchewan, and from California to Maine. It’s established in nearly every state and several Canadian provinces.
Interestingly, while it’s native to continental North America, it’s actually considered non-native in the U.S. Virgin Islands, where it was introduced but now reproduces on its own in the wild.
- Species observed
- No observations
A Rare Find in Some Places
Despite its wide distribution, rough barnyardgrass isn’t common everywhere. In New Jersey, for example, it has a rarity status of S2 and is listed as Highlands Listed, meaning it’s considered uncommon to rare within the state. This shows how even widespread native plants can become scarce in certain regions due to habitat loss or other environmental pressures.
Should You Plant It in Your Garden?
Here’s the honest truth: most gardeners probably shouldn’t intentionally plant rough barnyardgrass, even though it’s native. Here’s why:
- Limited ornamental value: This isn’t exactly what you’d call a showstopper in the looks department
- Weedy nature: It tends to pop up in disturbed soils and agricultural areas – classic weed behavior
- Better alternatives exist: If you want native grasses for your landscape, there are many more attractive options
Its Ecological Role
Before you write off rough barnyardgrass entirely, remember that even weedy native plants serve important ecological functions. As a native annual grass, it likely provides some benefits to local ecosystems, though specific wildlife benefits aren’t well-documented. Native plants, even the less glamorous ones, often support specialized insects and other wildlife that have evolved alongside them over thousands of years.
If You’re Thinking About Native Grass Alternatives
If you’re interested in incorporating native grasses into your landscape (which is a fantastic idea!), consider more ornamental options like:
- Little bluestem (Schizachyrium scoparium)
- Prairie dropseed (Sporobolus heterolepis)
- Buffalo grass (Bouteloua dactyloides) in appropriate regions
- Various native sedges for wet areas
The Bottom Line
Rough barnyardgrass is a perfect example of how not all native plants are created equal when it comes to landscaping. While it deserves respect as a native species and likely plays important ecological roles in natural areas, it’s not the best choice for most home gardens. Instead, celebrate it when you encounter it in the wild, and choose more garden-worthy native grasses for your landscaping projects.
Remember, being native doesn’t automatically make a plant garden-worthy, and being weedy doesn’t make a plant worthless. It’s all about finding the right plant for the right place – and for most gardens, that place isn’t rough barnyardgrass!