Cà Gai Leo: Solanum procumbens and S. hainanense

Kew treats Solanum hainanense Hance as a synonym of Solanum procumbens Lour. A cà gai leo label using either name is therefore not necessarily naming a different species. This taxonomic relationship does not authenticate a product or make other nightshades interchangeable with it.

How can you check the scientific name accurately?

The author abbreviations help make the intended names precise. Compare Kew POWO: Solanum procumbens with Kew POWO: Solanum hainanense rather than deciding from a partial search result or common name.

What do prickles and leaf hairs tell you?

The Flora of China: Solanum description of S. procumbens includes prickles and star-shaped hairs. These are botanical context, not a checklist sufficient for a reader to collect a wild nightshade. Several features need expert interpretation, and dried fragments can lose the structures needed for identification.

An AI image can illustrate the topic but cannot establish which plant was harvested. Do not use a similar-looking garden weed or fruiting nightshade as a substitute for a traceably identified ingredient.

What still needs verification after the synonym is resolved?

The package should state the plant part: leaves, stems, roots and mixed material should not be blurred into one description. Ask whether the scientific name applies to the current lot and whether any other ingredients are included. The supplier should be able to connect the physical item with its ingredient statement.

Taxonomy and product verification answer separate questions. Kew can resolve the name relationship. It cannot certify that a particular bag contains that species, was processed appropriately, or has directions suitable for a particular person.

Does botanical identity support a liver-health claim?

No. The sources used here identify the plant and its morphology; they do not demonstrate that a retail tea treats hepatitis, reverses liver disease or performs a “detox.” This article makes none of those claims. Do not postpone diagnosis or prescribed care because a product uses the cà gai leo name.

No current matched label and preparation instructions were authenticated for this review. For that reason, this page gives no gram amount, boiling schedule or daily course. A correctly resolved scientific name does not fill those evidence gaps.

Frequently asked questions

Should every label using S. hainanense be called wrong?

No. Kew treats S. hainanense Hance as a synonym of S. procumbens Lour.; the relationship can be explained transparently.

Does that mean all Solanum species are equivalent?

No. A shared genus is not permission to substitute another nightshade.

Can I identify cà gai leo by thorns alone?

No. Prickles alone cannot identify a species or determine suitability for consumption.

Related reading

Ludwigia adscendens vs Water Spinach: Tea Identity Guide · Xạ Đen Tea: Celastrus hindsii vs Ehretia asperula

Sources and evidence scope

• Kew POWO: Solanum procumbens — Botanical name and taxonomic status; not evidence of clinical efficacy or batch identity.
• Kew POWO: Solanum hainanense — Botanical name and taxonomic status; not evidence of clinical efficacy or batch identity.
• Flora of China: Solanum — S. procumbens botanical morphology; not food-safety certification.

Reviewed October 11, 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.