Gambian tea bush vs Koseret
The short answer
Two African species of Lippia used as dried seasoning leaves, on opposite sides of the continent. Koseret is a selected homegarden herb of the Ethiopian highlands and reaches food through spiced butter. Gambian tea bush is a tall wild shrub of West and Central Africa; in central Benin its young shoots are crushed into sauce and its dried leaves and flower heads sprinkled over it, and in Ivory Coast it is drunk as a tea. No source read compares their flavour.
Side by side
| Gambian tea bush | Koseret | |
|---|---|---|
| Botanical identity | Lippia multiflora Moldenke | Lippia abyssinica (Otto & A.Dietr.) Cufod. |
| Part used | leaf, flower | leaf |
| Origin | Not stated outright in the sources read. They record the plant in use in Benin, Ivory Coast and Angola, and a 2025 review gives it names in Hausa, Akan, Ga, Ewe and Kikongo. | The Ethiopian highlands, where the plant grows wild and where the culinary form is cultivated. |
| Flavour notes | aromatic, minty | herbal, floral, resinous, faintly lemony |
| Heat | Scoville does not apply | Scoville does not apply |
| Flavour | Not established | Herbal, slightly bitter and resinous, softening to something warm and rounded once cooked in butter. |
| Aroma | Aromatic, and not one smell. Speakers of Ifè in Benin explained their name for it as "mint flavour", and Nago and Tchabè speakers explained theirs as a pleasant flavour. Chemists who distilled eleven samples in Angola found oils so different from one another that they sorted them into separate types. No tasting panel was found. | Herbal and floral, somewhere between oregano and a softer, sweeter lemon-verbena note. The cultivated culinary form owes that softness to linalool, which dominates its oil; the wild plant lacks linalool almost entirely and smells harsher. |
Which should you buy?
Gambian tea bush
Used both ways in Benin: the leaf as a powder, the flower head whole or crushed.
Koseret
Crumbled leaf, which is how it is sold. It is strained out of butter after infusing, so there is nothing to gain from a powder.
Full detail on gambian tea bush and koseret, including evidence grades and sources for every claim above.