North America Non-native Plant

Trifolium Physodes

Botanical name: Trifolium physodes

USDA symbol: TRPH5

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

The Mystery of Trifolium physodes: A Clover That’s Hard to Find If you’ve stumbled across the name Trifolium physodes while researching native plants, you’re not alone in scratching your head. This particular member of the clover family seems to be playing an excellent game of botanical hide-and-seek, and even seasoned ...

The Mystery of Trifolium physodes: A Clover That’s Hard to Find

If you’ve stumbled across the name Trifolium physodes while researching native plants, you’re not alone in scratching your head. This particular member of the clover family seems to be playing an excellent game of botanical hide-and-seek, and even seasoned gardeners and botanists are having trouble tracking it down.

What We Know (And Don’t Know)

Trifolium physodes belongs to the genus Trifolium, which includes all the familiar clovers we know and love. However, this specific species presents quite the puzzle. While the genus Trifolium is well-documented with over 300 species worldwide, physodes doesn’t appear in most standard botanical references or plant databases.

This could mean several things:

  • It might be an outdated or synonym name for another clover species
  • It could be an extremely rare or recently described species
  • There may be some confusion in plant identification or naming

The Trifolium Family: What to Expect

While we can’t provide specific details about Trifolium physodes, we can share what typical Trifolium species offer gardeners. Most clovers are:

  • Low-growing, spreading plants
  • Nitrogen-fixing legumes that improve soil
  • Attractive to pollinators, especially bees and butterflies
  • Hardy and adaptable to various growing conditions
  • Suitable for meadow gardens, ground cover, or naturalized areas

A Word of Caution for Gardeners

Before adding any plant with uncertain identification to your garden, it’s wise to proceed with caution. Since we can’t verify the native status, invasive potential, or specific growing requirements of Trifolium physodes, we recommend:

  • Consulting with local native plant societies or extension offices
  • Verifying plant identification with botanical experts
  • Considering well-documented native clover alternatives

Native Clover Alternatives

If you’re interested in adding native clovers to your landscape, consider these well-documented options that might be native to your area:

  • White Prairie Clover (Dalea candida)
  • Purple Prairie Clover (Dalea purpurea)
  • Regional Trifolium species native to your specific location

The Bottom Line

While the mystery of Trifolium physodes remains unsolved, this serves as a good reminder of the importance of proper plant identification in native gardening. When in doubt, work with reputable native plant nurseries, consult botanical experts, and stick to well-documented species that are known to be native to your region.

Remember, successful native gardening starts with choosing the right plants for your location—and that means plants we can identify and understand with confidence!

Trifolium Physodes

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 physodes Steven ex M. Bieb.

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