Pricklegrass (Crypsis): What You Need to Know About This Non-Native Annual Grass
If you’ve ever wondered about those small, somewhat scrappy-looking grasses popping up in wet areas around your property, you might be looking at pricklegrass. This little-known genus goes by the botanical name Crypsis, and while it’s not exactly the star of the garden show, it’s worth understanding what it is and where it fits in the landscape.





What is Pricklegrass?
Pricklegrass is an annual grass that belongs to the larger family of graminoids – that’s the fancy term for grasses and grass-like plants including sedges, rushes, and their relatives. True to its annual nature, pricklegrass completes its entire life cycle in one growing season, sprouting from seed, growing, reproducing, and dying all within a single year.
This isn’t a native plant to North America. Pricklegrass is a non-native species that has been introduced and now reproduces spontaneously in the wild without human help, managing to persist in both Canada and the lower 48 states.
Where You’ll Find Pricklegrass
Pricklegrass has established itself across a surprisingly wide range of North America. You can find it growing in British Columbia and Ontario in Canada, and in numerous U.S. states including Arizona, California, Colorado, Delaware, Idaho, Illinois, Indiana, Iowa, Massachusetts, Michigan, Missouri, Montana, Nevada, New Jersey, New York, Ohio, Oregon, Pennsylvania, Utah, Vermont, Washington, Wisconsin, and Wyoming.
What Does Pricklegrass Look Like?
Don’t expect pricklegrass to wow you with its beauty – this is more of a utility player in the plant world. As a graminoid, it has the typical narrow, blade-like leaves you’d expect from a grass family member. Being an annual, it tends to have a somewhat temporary, scrappy appearance compared to the more established look of perennial grasses.
Should You Plant Pricklegrass in Your Garden?
Here’s the thing about pricklegrass – it’s not really a plant that most gardeners actively choose to grow. Since it’s non-native and tends to show up on its own in disturbed or wet areas, it’s more likely something you’ll encounter rather than something you’ll seek out for your landscape design.
If you’re looking to add grasses to your garden or landscape, you’ll probably be much happier with native alternatives that offer better aesthetic appeal, wildlife benefits, and environmental harmony. Native grasses are generally more beneficial to local ecosystems and often more attractive too.
Native Grass Alternatives to Consider
Instead of pricklegrass, consider these native options that will give you much more bang for your gardening buck:
- Buffalo grass for drought-tolerant lawns
- Little bluestem for ornamental appeal
- Native sedges for wet areas
- Switchgrass for tall grass prairie looks
- Blue grama grass for low-maintenance landscapes
If Pricklegrass Shows Up in Your Yard
Since pricklegrass is an annual, it’s not particularly aggressive or hard to manage if it appears in your landscape. Being a short-lived plant, it won’t establish the kind of persistent root systems that make some weedy plants problematic. However, since it can self-seed, you might see it return if conditions remain favorable.
If you prefer not to have it around, simple removal before it sets seed is usually effective. Focus your energy instead on establishing native plants that will outcompete unwanted species naturally.
The Bottom Line on Pricklegrass
While pricklegrass isn’t harmful, it’s also not particularly beneficial for most gardening goals. As a non-native annual grass, it’s more of a neutral presence in the landscape – not invasive enough to cause major problems, but not attractive or beneficial enough to warrant intentional cultivation.
Your gardening efforts will be much better spent on native grasses and grass-like plants that support local wildlife, look great in the landscape, and help create resilient, sustainable gardens. Save pricklegrass for the interesting but not invited category of plants you might encounter on your gardening journey.