Which herb contains tropine alkaloids such as hyoscyamine and scopolamine and is known for anticholinergic effects?

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Tropine alkaloids like hyoscyamine and scopolamine produce anticholinergic effects by blocking muscarinic receptors. Hyoscyamus niger (henbane) is a classic source of these alkaloids, and its anticholinergic effects are well-known: dry mouth, dilated pupils, flushed skin, tachycardia, urinary retention, and potential delirium. Among the options, henbane is the plant that contains both hyoscyamine and scopolamine, matching the description. The other herbs listed do not contain these tropane alkaloids and do not produce the same anticholinergic profile.