North America Non-native Plant

Desmodium Campylocaulon

Botanical name: Desmodium campylocaulon

USDA symbol: DECA19

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

Desmodium campylocaulon: An Elusive Member of the Tick-trefoil Family If you’ve stumbled across the name Desmodium campylocaulon in your plant research, you’re not alone in finding it a bit mysterious. This member of the Desmodium genus—commonly known as tick-trefoils or beggar’s lice—is one of those plants that seems to prefer ...

Desmodium campylocaulon: An Elusive Member of the Tick-trefoil Family

If you’ve stumbled across the name Desmodium campylocaulon in your plant research, you’re not alone in finding it a bit mysterious. This member of the Desmodium genus—commonly known as tick-trefoils or beggar’s lice—is one of those plants that seems to prefer keeping a low profile in the botanical world.

What We Know (And What We Don’t)

Here’s where things get interesting: Desmodium campylocaulon is remarkably elusive when it comes to detailed information. Unlike its more famous cousins in the Desmodium family, this particular species doesn’t have readily available common names, well-documented growing conditions, or clear geographical distribution data in most standard references.

What we do know is that it belongs to the legume family (Fabaceae), making it a relative of beans, peas, and other nitrogen-fixing plants. As a dicot, it would typically produce flowers with parts in multiples of four or five, and have leaves with branching vein patterns.

The Desmodium Family Connection

While we can’t speak specifically about D. campylocaulon‘s characteristics, we can look at its plant family for clues. Most Desmodium species are:

  • Herbaceous perennials or subshrubs
  • Known for their distinctive seed pods that stick to clothing and fur
  • Valuable wildlife plants, especially for butterflies and moths
  • Nitrogen-fixers that improve soil health
  • Adapted to a variety of growing conditions

Should You Try to Grow It?

Here’s the honest truth: without clear information about this plant’s native range, growing requirements, or availability, it’s difficult to recommend for home gardens. The lack of readily available information suggests it may be:

  • Extremely rare or geographically restricted
  • Not commonly cultivated
  • Potentially challenging to source from reputable nurseries

Better Alternatives

If you’re interested in native Desmodium species for your garden, consider these well-documented alternatives:

  • Desmodium canadense (Showy Tick-trefoil)
  • Desmodium illinoense (Illinois Tick-trefoil)
  • Desmodium nudiflorum (Naked-flowered Tick-trefoil)

These species have established track records in gardens, known growing requirements, and documented wildlife benefits.

The Mystery Continues

Sometimes in the plant world, we encounter species that remain enigmatic despite our best research efforts. Desmodium campylocaulon appears to be one of these botanical mysteries. Whether it’s a rarely encountered native, a taxonomic synonym, or simply a plant that hasn’t made it into common cultivation, it serves as a reminder that there’s still much to discover in the plant kingdom.

If you do happen to encounter reliable information about this species or find it offered by a reputable native plant source, approach with the curiosity of a plant detective—and always verify its native status and growing requirements for your specific region before planting.

Desmodium Campylocaulon

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 campylocaulon F. Muell. ex Benth.

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