What is it about?
Herbal medicines are widely used in the UK, but they depend on plant species that may be under pressure in the wild. This study explores whether the plants used in the UK herbal medicine industry are threatened and how well their conservation status is understood. The authors reviewed the plant species commonly used in herbal medicines and compared them with national and international conservation assessments. They found that many medicinal plants have not yet been properly evaluated for extinction risk. Some species are already affected by over‑harvesting, habitat loss, climate change, and international trade, particularly when plants are collected from the wild rather than grown sustainably. The study highlights gaps in knowledge about where medicinal plants come from and how harvesting affects wild populations. Improving monitoring, transparency in supply chains, and conservation assessments is essential to protect these plants. By linking human health practices with environmental sustainability, this research shows that conserving medicinal plants is important for nature, people, and the long‑term future of herbal medicine.
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Why is it important?
Herbal medicines depend on plants, yet many of the species used in the UK are poorly studied from a conservation perspective. Without understanding whether these plants are threatened, their use could unintentionally contribute to biodiversity loss and place pressure on vulnerable wild populations. This research highlights the need for better conservation assessments, clearer sourcing information, and more sustainable harvesting practices within the herbal medicine industry. By improving knowledge of which medicinal plants are at risk, this study helps inform policy‑makers, industry, and consumers, supporting efforts to protect plant biodiversity while ensuring the long‑term availability of herbal medicines.
Perspectives
This paper was a first study out of Isabella Flowers' PhD. The ideas were really interesting, and we were surprised that there had not been more consideration of sustainability in this industry. What was really innovative, though, was using Isabella's training as a medical herbalist to make constructive solutions about alternatives to unsustainably used species.
Dr Christopher Hassall
University of Leeds
Read the Original
This page is a summary of: Conservation status of species used in the UK herbal medicine industry, Plants People Planet, February 2026, Wiley,
DOI: 10.1002/ppp3.70154.
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