ست الحسن
"Atropa belladonna" is a branching herbaceous perennial rhizomatous hemicryptophyte, often growing as a subshrub from a fleshy rootstock. Plants grow to tall with ovate leaves long. The bell-shaped flowers are dull purple with green tinges and faintly scented. The fruits are berries, which are green, ripening to a shiny black, and approximately in diameter. The berries are sweet and are consumed by animals that disperse the seeds in their droppings, even though they contain toxic alkaloids (see "Toxicity"). There is a pale-yellow flowering form called "Atropa belladonna" var. "lutea" with pale yellow fruit.