Botanical atlas
Bogbean
Menyanthes trifoliata
Bogbean has long been counted among the great bitter herbs of northern European folk medicine, its intensely bitter trefoil leaves chewed or brewed to wake a sluggish appetite and stir the digestion before a meal. Herbalists in Britain and Scandinavia traditionally turned to it for what old texts called sluggish stomachs and for the aches of rheumatism, treating it as a tonic to be taken in small, careful amounts rather than a food. Before hops became the standard, brewers in parts of Scandinavia even used dried bogbean leaf to lend beer its bitterness. It grows nowhere near dry ground, always with its roots in mud or shallow water, which made it a plant gathered rather than farmed for most of its long history in folk practice.
In tradition.
Bogbean has long been counted among the great bitter herbs of northern European folk medicine, its intensely bitter trefoil leaves chewed or brewed to wake a sluggish appetite and stir the digestion before a meal. Herbalists in Britain and Scandinavia traditionally turned to it for what old texts called sluggish stomachs and for the aches of rheumatism, treating it as a tonic to be taken in small, careful amounts rather than a food. Before hops became the standard, brewers in parts of Scandinavia even used dried bogbean leaf to lend beer its bitterness. It grows nowhere near dry ground, always with its roots in mud or shallow water, which made it a plant gathered rather than farmed for most of its long history in folk practice.
Traditional preparations.
Traditionally taken as a bitter tonic shortly before meals, in the old folk manner of using bitterness itself to rouse a tired appetite and ease digestion.
Traditionally, a small cup of tea is made by steeping 1/2 teaspoon of the dried leaf in 150 ml of just-boiled water for 10 minutes, then straining. It is taken in modest sips, about 15 to 20 minutes before a meal, given how strongly bitter the leaf is.
Safety.
Bogbean is intensely bitter, and large amounts can cause nausea, vomiting, or diarrhea, so it's traditionally used in small, sip-sized doses. Avoid it if you have gastritis, ulcers, or active inflammatory bowel disease, and during pregnancy or breastfeeding.
Our sister app HerbLens identifies bogbean from a photo and keeps its full botanical portrait: growing guide, harvest notes, and look-alike warnings.
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Ask about BogbeanHerbSense shares traditional herbal knowledge for education, not diagnosis or treatment. Herbs can interact with medicines and conditions. Speak with your doctor before acting on anything here, and seek care promptly for anything severe, sudden, or worsening.