Native Plants

Frisco Clover

Trifolium friscanum

USDA symbol: TRFR4

perennial subshrub

Lower 48 states: native

Meet Frisco clover (Trifolium friscanum), one of Utah’s most precious botanical treasures. This tiny perennial herb might not look like much at first glance, but it’s actually one of the rarest plants in North America. If you’re a native plant enthusiast with a soft spot for conservation stories, this little ...

Frisco Clover may be listed as rare in your area.
Global Conservation Status

Status: S1 | Critically imperiled: Typically 5 or fewer occurrences or under 1,000 remaining individuals.

Frisco Clover: A Rare Mountain Gem Worth Protecting

Meet Frisco clover (Trifolium friscanum), one of Utah’s most precious botanical treasures. This tiny perennial herb might not look like much at first glance, but it’s actually one of the rarest plants in North America. If you’re a native plant enthusiast with a soft spot for conservation stories, this little clover has quite the tale to tell.

What Makes Frisco Clover Special?

Frisco clover is a perennial forb – basically a non-woody plant that comes back year after year. Like its clover cousins, it produces small white to pale pink flowers that are absolutely charming when you get up close. But here’s the kicker: this plant is found nowhere else on Earth except in a few spots in Utah’s high country.

You might also see this plant listed under its synonym, Trifolium andersonii var. friscanum, but don’t let the name confusion fool you – we’re talking about the same incredibly rare species.

Where Does It Call Home?

This mountain dweller is endemic to Utah, meaning it evolved here and exists nowhere else naturally. It’s adapted to life in high-elevation environments where most plants would throw in the towel. We’re talking about some seriously tough growing conditions that only the most specialized plants can handle.

  • Species observed
  • No observations

A Plant in Crisis

Here’s where things get serious, folks. Frisco clover has a Global Conservation Status of S1, which translates to Critically Imperiled. That’s conservation-speak for we’re really, really worried about this plant. With typically five or fewer known locations and fewer than 1,000 individual plants remaining in the wild, this species is hanging on by a thread.

Should You Grow Frisco Clover?

While we absolutely support growing native plants, Frisco clover presents a unique situation. Given its critically imperiled status, we strongly recommend against attempting to grow this species unless you:

  • Have access to responsibly sourced, legally obtained plant material
  • Are participating in a legitimate conservation program
  • Can provide the very specific high-elevation growing conditions it requires
  • Understand that cultivation success is extremely unlikely outside its natural habitat

Growing Conditions (For Conservation Purposes Only)

If you’re involved in legitimate conservation efforts, here’s what Frisco clover needs:

  • Elevation: High-altitude conditions (specific elevations vary by location)
  • Climate: Cool temperatures typical of mountain environments
  • Soil: Well-drained soils adapted to its native habitat
  • Hardiness zones: Likely zones 4-6, though this is challenging to cultivate outside its natural range

Wildlife and Pollinator Benefits

Like other clovers, Frisco clover likely provides nectar for native bees and other small pollinators in its mountain habitat. Its flowers, though small, play an important role in supporting the specialized ecosystem where it grows.

Better Alternatives for Your Garden

Instead of trying to grow this rare species, consider these more widely distributed native Utah clovers and wildflowers:

  • White clover (Trifolium repens) – though not native, it’s naturalized and supports pollinators
  • Rocky Mountain beeplant (Cleome serrulata) – native and great for pollinators
  • Utah penstemon (Penstemon utahensis) – gorgeous native wildflower
  • Scarlet globemallow (Sphaeralcea coccinea) – drought-tolerant native beauty

How You Can Help

The best way to support Frisco clover isn’t by growing it in your garden – it’s by supporting conservation organizations working to protect its natural habitat. Consider donating to or volunteering with groups focused on Utah’s rare plant conservation.

Sometimes the most loving thing we can do for a plant is to admire it from afar and work to protect the wild places where it belongs. Frisco clover is a reminder that our native flora includes some truly irreplaceable treasures worth preserving for future generations.

Trifolium friscanum is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Trifolium friscanum is also known as:

Trifolium andersonii Gray var. friscanum | USDA symbol: TRANF2

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Fabales
Family: Fabaceae Lindl. - Pea family
Genus: Trifolium L. - clover

Species: Trifolium friscanum (S.L. Welsh) S.L. Welsh - Frisco clover

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