Amy's definition of `wicked' is quite broad - not all of the plants she covers are poisonous. Although she starts with plants used to produce arrow poisons, she moves on to intoxicating and narcotic plants, invasive weeds and carnivorous plants, and those that enslave animals (and humans) to spread their seeds through various means.
There are fascinating facts about exotic plants you may never come into contact with, wild plants and weeds that you may run into when you're out hiking or camping, and familiar plants that live in our gardens and homes and have an unexpectedly dark side to them.
There is a tendency to think of natural plants products as safer than their synthetic replacements, but this book reminds us that nature can be nasty as well as nice and that it's important to know what you're growing and eating and particularly foraging for when you're out and about in the countryside. It's also a good reminder that a well-behaved and useful plant in one climate can become and invasive monster in another habitat, so we should be careful about the non-native plants we introduce into our gardens.
Whether you're a keen gardener or botanist, or just interested in the macabre, this is a great little volume to have lying around. Although this book is fascinating, it's a little too detailed to make it a light read. It would make a great coffee table book to dip into, or an interesting reference book for the shelf.