North America Non-native Plant

Sharp-tooth Clover

Botanical name: Trifolium argutum

USDA symbol: TRAR11

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

Sharp-Tooth Clover: A Lesser-Known Native Wildflower Worth Discovering If you’re always on the hunt for unique native plants to add diversity to your garden, you might be intrigued by sharp-tooth clover (Trifolium argutum). This member of the legume family represents one of those delightful botanical mysteries that keeps native plant ...

Sharp-Tooth Clover: A Lesser-Known Native Wildflower Worth Discovering

If you’re always on the hunt for unique native plants to add diversity to your garden, you might be intrigued by sharp-tooth clover (Trifolium argutum). This member of the legume family represents one of those delightful botanical mysteries that keeps native plant enthusiasts on their toes – there’s still much to learn about this particular species!

What is Sharp-Tooth Clover?

Sharp-tooth clover belongs to the Trifolium genus, which includes many of our familiar clovers. The name argutum suggests sharp or pointed features, likely referring to characteristics of its leaves or flowers. Like its clover cousins, this plant is part of the legume family, which means it has the superpower of fixing nitrogen in the soil – a real bonus for any garden ecosystem.

Where Does It Grow Naturally?

Here’s where things get interesting (and a bit mysterious). Sharp-tooth clover appears to be associated with western North American regions, but specific distribution information is surprisingly limited in readily available sources. This could indicate that it’s either quite rare, has a very specific habitat range, or hasn’t been extensively studied and documented.

Should You Grow Sharp-Tooth Clover?

This is where we need to be honest – growing sharp-tooth clover presents some challenges, mainly because detailed cultivation information is scarce. However, this doesn’t necessarily mean you should dismiss it entirely. Here are some considerations:

  • As a native species, it likely provides ecological benefits to local wildlife
  • Being a legume, it can help improve soil nitrogen levels
  • It may attract beneficial pollinators, as most Trifolium species do
  • The limited information available could mean it requires very specific growing conditions

Growing Conditions and Care

Without specific cultivation data for Trifolium argutum, we can make some educated guesses based on related clover species. Most clovers prefer:

  • Full sun to partial shade
  • Well-draining soils
  • Moderate moisture levels
  • pH ranges from slightly acidic to neutral

However, sharp-tooth clover may have more specialized requirements that aren’t well-documented. If you’re determined to try growing it, sourcing seeds or plants might prove challenging due to its limited availability in the nursery trade.

A Word of Caution and Alternatives

Given the limited information available about this species, we’d recommend proceeding with caution. If you do manage to source sharp-tooth clover, make sure it’s from a reputable native plant supplier who can verify its identity and provenance.

In the meantime, consider these well-documented native alternatives that offer similar benefits:

  • White clover (Trifolium repens) – widely available and pollinator-friendly
  • Red clover (Trifolium pratense) – excellent for soil improvement
  • Other native legumes specific to your region

The Bottom Line

Sharp-tooth clover represents one of those fascinating native plants that reminds us how much we still have to learn about our local flora. While it may not be the easiest addition to your garden right now, it’s worth keeping on your radar. As more research emerges and cultivation techniques are developed, it could become a valuable addition to native plant gardens.

For now, if you’re passionate about supporting native biodiversity, focus on well-documented native species in your area while keeping an eye out for more information about this intriguing little clover. Sometimes the most rewarding gardening adventures start with a bit of mystery!

Sharp-tooth Clover

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Trifolium L. - clover

Species

Trifolium argutum Banks & Sol. - sharp-tooth clover

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