North America Native Plant

Mountain Carpet Clover

Botanical name: Trifolium monanthum tenerum

USDA symbol: TRMOT

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Trifolium monanthum A. Gray var. eastwoodianum J.S. Martin (TRMOE)  âš˜  Trifolium monanthum A. Gray var. tenerum (Eastw.) Parish (TRMOT2)  âš˜  Trifolium tenerum Eastw. (TRTE8)   

Mountain Carpet Clover: A Rare California Native Worth Knowing If you’re passionate about growing truly unique native plants, mountain carpet clover (Trifolium monanthum tenerum) might just capture your gardening heart. This lesser-known California native belongs to the beloved clover family, but don’t expect to find it at your typical garden ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Mountain Carpet Clover: A Rare California Native Worth Knowing

If you’re passionate about growing truly unique native plants, mountain carpet clover (Trifolium monanthum tenerum) might just capture your gardening heart. This lesser-known California native belongs to the beloved clover family, but don’t expect to find it at your typical garden center – this little beauty is something special.

What Makes Mountain Carpet Clover Special?

Mountain carpet clover is a perennial forb, which simply means it’s a non-woody plant that comes back year after year. Unlike the more common clovers you might know, this subspecies has adapted to California’s unique mountain environments, making it a true botanical treasure.

You might also encounter this plant listed under several synonyms in botanical references, including Trifolium monanthum var. eastwoodianum, Trifolium monanthum var. tenerum, or Trifolium tenerum – all referring to the same remarkable little plant.

Where Does It Call Home?

This native beauty is found exclusively in California, where it has evolved to thrive in the state’s mountainous regions. As a plant native to the lower 48 states, it represents an important piece of California’s natural heritage.

A Word of Caution for Conservation-Minded Gardeners

Before you get too excited about adding mountain carpet clover to your garden, there’s something important to consider. This plant has a Global Conservation Status of S5T3?, which indicates some level of conservation concern, though the exact status remains undefined. This means if you’re interested in growing this rare native, you’ll want to ensure you source it responsibly from reputable native plant nurseries or conservation organizations.

Garden Appeal and Design Potential

While detailed information about mountain carpet clover’s specific growing requirements and appearance is limited due to its rarity, its common name suggests it likely forms a low, carpet-like growth pattern typical of alpine clovers. This growth habit would make it potentially valuable for:

  • Specialized native plant gardens
  • Rock gardens mimicking California mountain habitats
  • Conservation collections
  • Educational plantings showcasing rare California natives

Growing Conditions and Care

Given its mountain origins and clover family heritage, mountain carpet clover likely prefers well-draining soils and conditions that mimic its natural high-elevation habitat. However, specific growing requirements, hardiness zones, and care instructions for this particular subspecies are not well-documented in readily available sources.

If you’re determined to grow this rare native, your best bet is to:

  • Contact specialized California native plant societies
  • Reach out to botanical gardens with native plant programs
  • Connect with university extension programs focused on rare plants
  • Consult with conservation organizations working to preserve California’s native flora

Wildlife and Pollinator Benefits

While specific wildlife benefits for mountain carpet clover aren’t well-documented, native clovers generally provide valuable nectar for native bees, butterflies, and other pollinators. By choosing native plants like this one, you’re supporting the intricate web of relationships that have evolved over thousands of years in California’s ecosystems.

The Bottom Line

Mountain carpet clover represents the kind of botanical treasure that makes native plant gardening so rewarding – and challenging. While it may not be the easiest native to grow or find, for dedicated native plant enthusiasts, the opportunity to cultivate a rare piece of California’s natural heritage could be incredibly fulfilling.

Just remember: if you do decide to pursue growing this special plant, always source it responsibly and consider contributing to its conservation through your gardening choices. Sometimes the most meaningful gardens are those that help preserve our rarest natural treasures.

Mountain Carpet 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 monanthum A. Gray - mountain carpet clover

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