Avocado leaves browning and dropping General Fruit Growing Growing Fruit This is Black NightshadeSolanum nigrum. It's a wild plant found all over the world, often growing along roadsides, in gardens, or at the edge of bush.Despite the name, it's not the infamous Artemisia Annua and Its Cancer Fighting Properties Integrative Cancer Care PlantFiles Pictures: Forked Blue Curls, Bluecurls (Trichostema dichotomum< i>) by Floridian