North America Non-native Plant

Desmodium Podocarpum Oxyphyllum

Botanical name: Desmodium podocarpum oxyphyllum

USDA symbol: DEPOO

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

Synonyms: Desmodium racemosum DC. (DERA4)   

The Mystery of Desmodium podocarpum oxyphyllum: A Plant That May Not Exist Sometimes in the world of native gardening, we encounter plant names that send us on quite the detective journey. Desmodium podocarpum oxyphyllum is one such mysterious character that has left botanists and gardeners scratching their heads. What We ...

The Mystery of Desmodium podocarpum oxyphyllum: A Plant That May Not Exist

Sometimes in the world of native gardening, we encounter plant names that send us on quite the detective journey. Desmodium podocarpum oxyphyllum is one such mysterious character that has left botanists and gardeners scratching their heads.

What We Know (And Don’t Know)

Here’s the puzzling situation: while Desmodium is a well-known genus of plants commonly called tick-trefoils or beggar’s lice, the specific combination podocarpum oxyphyllum doesn’t appear in any major botanical databases or scientific literature. This particular name seems to exist in a taxonomic twilight zone.

The genus Desmodium itself contains many wonderful native species throughout North America, but this particular combination of subspecific names is highly unusual and potentially invalid according to botanical naming conventions.

The Synonym Situation

The provided synonym Desmodium racemosum DC. refers to a legitimate species, but there’s no verifiable connection between it and our mysterious podocarpum oxyphyllum. This adds another layer to the puzzle.

Why This Matters for Gardeners

As native plant enthusiasts, we want to make informed decisions about what we’re adding to our gardens. When a plant’s identity is unclear or questionable, it becomes impossible to:

  • Determine its native status and appropriate range
  • Understand its growing requirements
  • Assess its value to local wildlife and pollinators
  • Plan appropriate garden placement
  • Source plants responsibly

A Better Path Forward

Instead of chasing this botanical ghost, consider exploring the many well-documented Desmodium species that are readily available and thoroughly understood. Species like Desmodium canadense (showy tick-trefoil) or Desmodium illinoense (Illinois tick-trefoil) offer proven benefits to native gardens with clear growing requirements and known wildlife value.

The Takeaway

While the mystery of Desmodium podocarpum oxyphyllum remains unsolved, it serves as a good reminder to verify plant information through multiple reliable sources before making garden decisions. When in doubt, stick with well-documented native species that have proven track records in cultivation.

If you’ve encountered this plant name elsewhere or have additional information about its validity, the native gardening community would certainly appreciate the clarification!

Desmodium Podocarpum Oxyphyllum

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

Desmodium Desv. - ticktrefoil

Species

Desmodium podocarpum DC.

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