BOOKS
2023 PhD Thesis. RBG Kew | Royal Holloway
2019 Just The Tonic. Kew Publishing
2019 The Herbal Remedy Handbook. Kyle Books
2017 The Handmade Apothecary. Kyle Books
OTHER BOOKS
Publications as contributor/Interviewee:
2025 Plants as Resistance (Chapter, with Kapwani Kiwanga). The Shape of a Circle in the Mind of a Fish. Hatje Cantze.
2022 Bitter barks: legacies and futures of the famous fever tree (Chapter, with Nataly Allasi Canales). This Book Is A Plant. Wellcome/Profile
2020 Foreward. The Heritage Herbal, Sonya Patel-Ellis, British Library.
2019 Elder Tree (Interview). Sylvan Cities , Helen Babbs, Atlantic Books.
2018 Melissa officinalis (Chapter). Collins Botanical Bible, Sonya Patel-Ellis, Harper Collins.
2018 Botanical Medicine at RBG Kew (Chapter). Agenda 2019: Tropicais Plantas Medicinais. Fernanda Botelho, Dinalivro.
SELECTED PRESS
2022 Walker, K. & Canales, N. Bitter Barks: legacies and futures of the famous fever tree. Resurgence and Ecologist.
2020 Walker, K., Quave, C., & Canales, N. No, Cinchona bark is not a cure for coronavirus. The Conversation.
Other press articles Here
PODCASTS
Please check out my medicinal plant research podcast at In Pursuit of Plants
2020 Kew Gardens Unearthed Podcast Curious cures
2020 Gastropodcast - Move over gin, we’ve got tonic fever
2019 Just the tonic - Foodie Pharmacology
2019 Foraging for medicine- Plant Based Podcast
2018 Handmade Apothecary - Eat Weeds
TV
2023/2019 Foraging for medicine Countryfile
2019 ‘Invitation au Voyage: Londres, Londres, la bataille du Gin’ Arte
RADIO
2021 Food Programme: The Joy of Heat BBC Radio 4
2020 How did humans discover medicine? BBC CrowdScience
ACADEMIC
2025, forthcoming A global pharmacopoeia: George Barber and The pharmaceutical or medico-botanical map of the world (1869). Pharmaceutical Historian.
2025, forthcoming. Legal use of potentially poisonous Plants: The case of British Herbalism. Journal of Economic Botany.
2022 Madagascar’s extraordinary biodiversity: Threats and opportunities. Science.
2022 Madagascar’s extraordinary biodiversity: Evolution, distribution, and use. Science
2022 Reconnecting the Cinchona (Rubiaceae) collections of La Real Expedición Botánica al Virreinato del Perú (1777-1816). Anales del Jardín Botánico.
2022 Dysphania schraderiana (Schult.) Mosyakin & Clemants–An overlooked medicinal and ritual plant used in Poland. Journal of Ethnopharmacology
2021 Is alcohol a tropical medicine? Scientific understandings of climate, stimulants and bodies in Victorian and Edwardian tropical travel. The British Journal for the History of Science.
2021 Historical chemical annotations of Cinchona bark collections are comparable to results from current day high-pressure liquid chromatography technologies. Journal of Ethnopharmacology.
BLOGS
2024 Quinine gingerbread: A seasonal tonic. Herbal History Research Network.
2020-2022 Please check out my series of interviews with ethnobotanists at the Society for Economic Botany Student Blog
2019 Elder Power Kew Science Blog.
2019 Tropical medicinal plant research - economic botany collection, Kew
2018 The fever tree: help us transcribe a bit of history Kew Science Blog.