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categoryZDeciduous Deciduous List 
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DEADLY NIGHTSHADE

BELLADONNA

Atropa belladonna

Nightshade Family [Solanaceae]

Flowers:
month8jun month8june month8jul month8july month8aug

Berries: berryZpossible        berryZgreen berryZblack  (deadly poisonous)
berry8sep berry8sept berry8oct berry8nov berry8dec

category
category8Shrubs
category
category8Deciduous
category
category8Broadleaf
status
statusZnative
flower
flower8bicolour
flower
flower8green
flower
flower8beetroot
inner
inner8white
morph
morph8actino
petals
petalsZ5
type
typeZbell
stem
stem8round
toxicity
toxicityZsevere

mid June, Oxfordshire Photo: © Pete Townsend
Plant un-tidy and bushy, growing to an almost shrubby 2m high. Other Deadly Nightshades grow close by, one upper left.


mid June, Oxfordshire Photo: © Pete Townsend
Leaves large similar to those of Potato (which is in the same family) under which the much smaller flowers may lurk (centre top).


mid June, Oxfordshire Photo: © Pete Townsend
Flowers bell-shaped with 5 out-turned petals, green near the stem graduating to a deep purple or beetroot colour at the tips.


mid June, Oxfordshire Photo: © Pete Townsend
Obvious dark purple coloured veins on the flowers like Henbane. Stems, leaves and flowers may be slightly hairy.


mid June, Oxfordshire Photo: © Pete Townsend
Curled up inside are five stamens with beetroot coloured anthers. A single stigma may lurk in the flower opening.


mid June, Oxfordshire Photo: © Pete Townsend
Large leaves.


mid June, Oxfordshire Photo: © Pete Townsend
Ridged veins on underside of leaf.


Some similarities to : Henbane, a member of the same family, but that has larger flowers where the petals are rounded rather than pointed.

Superficial resemblance to : Potato (the leaves)

Uniquely identifiable characteristics

Distinguishing Feature : The large black berries or the green to dark-purple bell-shaped flowers.

No relation to : Alpine Enchanter's Nightshade (Ciracea alpina) or Enchanter's Nightshade (Ciracea lutetiana),Upland Enchanter's Nightshade (Ciracea × intermedia), [plants with similar names belonging to a differing family].

The only plant in it's genus, Atropa, but other Nightshades are related: Leafy Fruited Nightshade (Solanum saracoides), Small Nightshade (Solanum physalifolium), Green Nightshade (Solanum physalifolium var. nitidbaccatum) Woody Nightshade (Solanum dulcamara), and Black Nightshade (Solanum nigrum) and all are poisonous to some degree but not as much as Deadly Nightshade.

It grows in old quarries, on scrub and waste ground but always on lime. The very poisonous berries are large, green at first turning black, presented singly still within the five green sepals in which the flowers used to snuggle. Ingestion of 10 to 20 berries is sufficient to kill an adult, a quarter of those a child. Consumption of just 0.3gram of the leaves (a single leaf) is toxic.

All parts of the plant contain dangerous quantities of Tropane alkaloids, but the roots contain most. Hyoscyamine (aka daturine) is the main toxin and is the laevorotatory stereoisomer to Atropine the dextrorotatory stereoisomer. Scopolamine, another tropane alkaloid is a minor component. These alkaloids, if ingested, cause dilation of the pupil of the eye. Since women look more attractive with wider pupils, this plant was often taken cosmetically by women up until the Renaissance period to dilate their eyes, hence the plant became known as 'belladonna', a name which has been transferred into its scientific name. The first part of its name, Atropa, gives rise to the name of the alkaloid found within it, Atropine. laevo-atropine has been used in medicine as a mydriatic to dilate the pupils for eye examinations, etc.

Scopolamine has been used in pills for travel sickness and to alleviate the analgesic effects of opiod analgesics. The two are antidotes for each other.

Rabbits and cattle are seemingly immune to the toxins able to eat it without noticeable ill effects. The amount of toxins within the plant is subject to vary quite a lot.

The plant has been used as an arrow poison. A feeling of being able to fly and other hallucinogenic experiences was experienced by rubbing the leaves on the skin, especially on sensitive areas of the skin where it is thinner. Thus began the depiction of witches on brooms flying across the landscape.


  Atropa belladonna  ⇐ Global Aspect ⇒ Solanaceae  

Distribution
 family8Nightshade family8Solanaceae

 BSBI maps
genus8Atropa
Atropa
(Deadly Nightshade)

DEADLY NIGHTSHADE

BELLADONNA

Atropa belladonna

Nightshade Family [Solanaceae]