Deadly Belladonna (Atropa lethalis)

Deadly nightshade Lethal nightshade
Silhouette: T. Michael Keesey / License

Atropa lethalis: Botanical Description and History

Highly feared throughout history for its extreme toxicity, Atropa lethalis produces dark purple flowers and glistening black berries. The historical name reflects the lethal potential of the compounds found in all parts of the organism. It remains a classic example of a wild species with profound physiological effects on humans and animals.

The plant grows in shaded, nutrient-rich soils across temperate regions. Botanists study this taxon primarily for its chemical properties and taxonomic history.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes (Vascular Plants)
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms (Core angiosperms)
  • ∟ eudicots
  • ∟ asterids
  • ∟ order Solanales
  • ∟ family Solanaceae
  • ∟ subfamily Solanoideae
  • ∟ tribe Hyoscyameae
  • ∟ genus Atropa (Belladonna)
  • ∟ species Atropa lethalis (Deadly Belladonna)

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Morphology

The upright stems of Atropa lethalis can reach heights of over one meter, branching extensively. Its leaves are broad, ovate, and arranged alternately along the stem. The foliage displays a dull green color with a soft, slightly pubescent texture.

Each flower hangs singly on a short pedicel, showcasing a dull purple or greenish-purple corolla. The subsequent fruit is a glossy black berry surrounded by a persistent green calyx. The root system is large, fleshy, and highly branched.

Flowering season

June to August

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Applications

Due to its high toxicity, Atropa lethalis has no place in home gardens or agricultural settings. Historically, related plants served as sources for medicinal extracts and cosmetic dilations. Today, its components are studied strictly within pharmaceutical research laboratories.

The active alkaloids are extracted for the preparation of controlled ophthalmic and antispasmodic medications. Any contact with the plant in the wild requires strict protective measures.

Interesting facts

Historically, this plant is linked to various poisoning incidents and legends.

  • Witchcraft folklore where it was believed to be an ingredient in flying ointments.
  • Medicinal dilations used by ladies in the Renaissance to enlarge their pupils.
  • Accidental poisonings resulting from confusing the sweet-looking berries with edible fruit.

The specific name lethalis highlights the extreme danger this plant poses to herbivores and humans. Modern botany treats this name as a synonym of the well-known deadly nightshade.

Geography of distribution

  • Germany
  • Österreich
  • Schweiz
  • France
  • Italy

Sources

  • Plants of the World Online (POWO)
  • World Flora Online (WFO)
  • Global Biodiversity Information Facility (GBIF)

Technical Information

External Databases: GBIF, POWO, Tropicos

See also

Deadly Nightshade

Deadly Nightshade

Atropa bella-donna

Atropa bella-donna, commonly known as deadly nightshade, is a highly toxic perennial herbaceous plant in …

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Yellow belladonna

Yellow belladonna

Atropa lutea

A rare, yellow-flowered perennial herb related to the deadly nightshade, belonging to the Solanaceae family.

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