The scientific or taxonomic name would be Atropa belladonna.
Nightshade is another name for belladonna. It is a weed with red berries.
Deadly nightshade got its name because all parts of the plant, especially the berries, are highly toxic and can be lethal if ingested. The plant's toxicity has led to its traditional use as a poison, making it a deadly plant.
I think Belladonna is derived from it. ------------------------------- REVISION OF ANSWER ----------------------------- belladonna is another name for the plant 'deadly nightshade'. Atropine is the name of the tropane alkaloid extracted from deadly nightshade and various other plants of the family Solanaceae. A potentially deadly drug, it acts as a competitive antagonist for the muscarinic acetylcholine receptor. It is classified as an anticholinergic drug.
The scientific or taxonomic name would be Solanum americanum.
The scientific or taxonomic name would be Solanum nigrum.
The scientific or taxonomic name would be Solanum dulcamara.
The scientific or taxonomic name would be Solandraspp.
The scientific name of Night Queen plant is Cestrum nocturnum. It is a species of flowering plant in the nightshade family, known for its fragrant flowers that bloom at night.
Beautiful Bella Donna is translated as Beautiful Lady however the plant with the same name is known as Deadly Nightshade.
The scientific name for Common Nightshade is Solanum nigrum.
The scientific or taxonomic name would be Cestrumspp.