Medicinal Plants in Australia: Volume 3: Plants, Potions and Poisons by Cheryll Williams
Medicinal Plants in Australia: Volume 3: Plants, Potions and Poisons by Cheryll Williams PDF, ePub eBook D0wnl0ad
Many plants have natural ways of defending themselves against predators, including man. Some plants use obvious defenses, such as stinging nettle-like strategies and burning or blistering latex resins. Other plants use different methods to incapacitate a predator, which include gastrointestinal distress (vomiting or purgation), blindness, neurological disability, or even asphyxia. This clearly illustrates the ingenuity of plant chemistry which, while daunting, has lead to some rather extraordinary discoveries. In Australia, the flora was largely unknown to the early explorers. Much of it was simply unfathomable, which made comparisons with more familiar plants somewhat risky. In the search for food, early inhabitants of Australia utilized poisonous plants that contained fish poisons (piscicides). A need to find staple dietary items - notably root crops with low toxicity, such as starchy yam tubers - was imperative. Under cultivation, certain species gradually survived a selection process that sought less toxic varieties and high-yielding crop candidates. Some plants were found to yield palatable fruits when they ripened, although not all plants, even if they looked the same, lost their toxicity during the process. The poisonous potential of numerous plants coincided with a medicinal effect that could not be ignored. What was the difference between a poisonous, an edible, or a therapeutic effect? These discoveries were not only pivotal for the remedial use of many plants, they were to open up entire new realms of chemical discovery that have had enormous ramifications for the worlds of medicine and the culinary arts. This invaluable book is meticulously researched and is designed to enhance the appreciation of the medicinal history of Australia's flora, as well as its unique contributions to everyday life and its possible future potential. (Series: Medicinal Plants in Australia - Vol. 3) ***From reader reviews:
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