Gold Coin Grass: Desmodium, Grona and Lysimachia

Desmodium styracifolium and Grona styracifolia refer to the same taxon in Kew’s current treatment; Lysimachia christinae is a different species. A preparation called “gold coin grass” therefore needs a scientific name before it can be meaningfully compared with another tea.

Which names are synonyms, and which are not?

See Kew POWO: Desmodium styracifolium, Kew POWO: Grona styracifolia and Kew POWO: Lysimachia christinae. A change of genus can explain two Latin names for one plant. It does not explain away a switch to an unrelated species.

How do you resolve conflicting gold coin grass labels?

First compare the full scientific names. A Desmodium label and a Grona label may be consistent once the synonym is documented. A Lysimachia label needs its own ingredient description and directions. Then compare plant parts: the word “herb” alone does not tell you whether the material contains leaves, stems or a broader mixture.

For example, a listing with “Desmodium” in its title and “Lysimachia” in the ingredient panel is not resolved by choosing the more familiar name. Ask the seller which material is currently supplied and request documentation that connects that answer to the actual item.

Can the rounded leaves prove the species?

No. The botanical illustration helps explain the subject, but leaf shape in a generated image is not authentication. Drying and cutting remove useful features, and unrelated plants can share rounded leaves. Neither a coin-like leaf nor the English nickname demonstrates composition, origin or suitability for drinking.

Does gold coin grass mean a kidney-stone remedy?

A common name does not establish a treatment effect. The taxonomic sources cited here resolve naming, not clinical efficacy. This article does not claim that either plant dissolves stones, treats urinary disease or substitutes for medical care. Research on one named species or extract cannot be assigned to a differently labeled tea.

No current matched retail label was authenticated in this review, so no gram amount, boiling time or daily use schedule is provided. Resolve the species and plant part before considering product-specific directions. If you are considering the herb because of a medical problem, discuss that reason with a clinician rather than relying on a treatment-sounding nickname.

Frequently asked questions

Is Desmodium styracifolium an outdated name I should reject?

Not necessarily. Kew lists it as a synonym of Grona styracifolia. A clear label can provide both names.

Can Lysimachia replace Desmodium in the same recipe?

This guide does not support that substitution. They are different species and require separate preparation and safety information.

What should I do if the label only says gold coin grass?

Ask for the scientific name and plant part before using the material.

Related reading

Chanca Piedra vs Stonebreaker: Species, Plant Parts & Evidence · Java Tea and Cat’s Whiskers: Orthosiphon Names Explained

Sources and evidence scope

• Kew POWO: Grona styracifolia — Botanical name and taxonomic status; not evidence of clinical efficacy or batch identity.
• Kew POWO: Desmodium styracifolium — Botanical name and taxonomic status; not evidence of clinical efficacy or batch identity.
• Kew POWO: Lysimachia christinae — Botanical name and taxonomic status; not evidence of clinical efficacy or batch identity.

Reviewed October 12, 2026. Botanical references support naming and descriptions, not authentication of a commercial batch. This article is educational and does not provide diagnosis or a treatment plan.