This comprehensively updated and expanded edition of the region’s best-selling field guide to trees offers much, much more than the highly successful first edition. Fully updated text (including additional species entries) and distribution maps, numerous new photographs and a new 87-page section of full-tree photographs makes this well-loved guide even more indispensable in the field. Southern Africa has a rich variety of tree species, with an estimated 2 100 indigenous species and more than 100 naturalised aliens. Field Guide to Trees of Southern Africa describes and illustrates more than 1 000 of these, focusing on trees that are the most common and most likely to be encountered. Species are logically arranged in 43 groups based on easy-to-observe leaf and stem features, and each account is illustrated by full-colour photographs of the plant’s diagnostic parts. The text also touches on the practical uses of the plants.
For over a century, plant specialists worldwide have sought to transform healing plants in African countries into pharmaceuticals. And for equally as long, conflicts over these medicinal plants have endured, from stolen recipes and toxic tonics to unfulfilled promises of laboratory equipment and usurped personal patents. In Bitter Roots, Abena Dove Osseo-Asare draws on publicly available records and extensive interviews with scientists and healers in Ghana, Madagascar, and South Africa to interpret how African scientists and healers, rural communities, and drug companies—including Pfizer, Bristol-Myers Squibb, and Unilever—have sought since the 1880s to develop drugs from Africa’s medicinal plants. Osseo-Asare recalls the efforts to transform six plants into pharmaceuticals: rosy periwinkle, Asiatic pennywort, grains of paradise, Strophanthus, Cryptolepis, and Hoodia. Through the stories of each plant, she shows that herbal medicine and pharmaceutical chemistry have simultaneous and overlapping histories that cross geographic boundaries. At the same time, Osseo-Asare sheds new light on how various interests have tried to manage the rights to these healing plants and probes the challenges associated with assigning ownership to plants and their biochemical components. A fascinating examination of the history of medicine in colonial and postcolonial Africa, Bitter Roots will be indispensable for scholars of Africa; historians interested in medicine, biochemistry, and society; and policy makers concerned with drug access and patent rights.
This publication provides a comprehensive and scientifically accurate guide to the best-known and most important medicinal plants, including those of special commercial or historical interest. It includes descriptions of more than 300 medicinal plants and their close relatives, with each entry summarising botanical background, geographical origin, therapeutic category, historical and modern uses, active ingredients, and pharmacological effects. Over 500 full-color photographs are included to assist in the identification of the plants.
A field guide to the wildlife of southern Africa, describing over 2,000 plants and animals, with accurate illustrations in full colour. This book has been a trusted fi eld companion for many years. Comprehensively updated, it now features range maps for most groups. The chapters are colour-coded for easy reference, and diagnostic features appear in bold type within the descriptions. Each chapter is written by a leading expert in the field. All the main plant and animal groups are covered: Lower invertebrates, Spiders and other arachnids, Insects, Freshwater fishes, Frogs, Reptiles, Birds, Mammals, Grasses, sedges, ferns and fungi, Wild flowers, Trees
This open access volume presents a comprehensive account of all aspects of biological invasions in South Africa, where research has been conducted over more than three decades, and where bold initiatives have been implemented in attempts to control invasions and to reduce their ecological, economic and social effects. It covers a broad range of themes, including history, policy development and implementation, the status of invasions of animals and plants in terrestrial, marine and freshwater environments, the development of a robust ecological theory around biological invasions, the effectiveness of management interventions, and scenarios for the future. The South African situation stands out because of the remarkable diversity of the country, and the wide range of problems encountered in its varied ecosystems, which has resulted in a disproportionate investment into both research and management. The South African experience holds many lessons for other parts of the world, and this book should be of immense value to researchers, students, managers, and policy-makers who deal with biological invasions and ecosystem management and conservation in most other regions.
Field Guide to Wildflowers of South Africa describes more than 1 100 of the shrubs and herbs of the region, highlighting the most conspicuous species and those most likely to be encountered across the country. The emphasis is on identifying plants progressively to family, genus and species level: a novel identification aid and easy-to-use keys guide users to the correct family and genus, while individual species descriptions, accompanied by a clear photograph, distribution map and an indication of flowering season, help them to pinpoint the plant. By using the guide, wild-flower enthusiasts at all levels will now be able to accurately identify plants in any part of South africa.
This report is the second in a series of three evaluating underexploited African plant resources that could help broaden and secure Africa's food supply. The volume describes the characteristics of 18 little-known indigenous African vegetables (including tubers and legumes) that have potential as food- and cash-crops but are typically overlooked by scientists and policymakers and in the world at large. The book assesses the potential of each vegetable to help overcome malnutrition, boost food security, foster rural development, and create sustainable landcare in Africa. Each species is described in a separate chapter, based on information gathered from and verified by a pool of experts throughout the world. Volume I describes African grains and Volume III African fruits.