Here’s a plant that you’ll not find in my yard–only in a book. Black nightshade contains atropine, a toxin. A while ago I had a collie that developed a medical condition. Her eyes rolled back in her head. She acted wobbly and goofy. Brain tumor, I thought. I took her to the vet who couldn’t diagnose it. He suggested a specialist far away. The thing was, the dog was happy, as if she was drunk. I didn’t want to do anything since she was happy and old. It didn’t seem worth the trip. One day I watched her wander around the yard, which is large and not always well kept. She ate some plants growing under the deck. Yup. They were black nightshade. Out they came and the dog recovered.