Which of the following plants is known for containing deadly compounds?

Deadly Nightshade, also known as Atropa belladonna, is renowned for containing highly toxic compounds, specifically tropane alkaloids such as atropine, scopolamine, and hyoscyamine. These substances can have severe physiological effects, leading to symptoms such as hallucinations, delirium, and even death if ingested in sufficient quantities. The plant’s toxicity is so significant that its name reflects its dangerous nature, as it has historically been associated with poisoning.

In contrast, while Meadow Buttercup can cause mild gastrointestinal irritation if ingested, it is not classified in the same lethal category as Deadly Nightshade. Goldenrod is generally considered non-toxic and is often seen as beneficial for pollinators. Clover is also safe to eat and is commonly used as forage for livestock. Thus, the notoriety of Deadly Nightshade for its poisonous properties makes it the correct and most appropriate choice in this context.