Nerium oleander is an evergreen shrub or small tree in the dogbane family Apocynaceae. It is the only species currently classified in the genus Nerium. It is most commonly known as Oleander but has many other names. The ancient city of Volubilis in Morocco took its name from the old Latin name for the flower. Oleander is one of the most poisonous of commonly grown garden plants, and can be very toxic if ingested in sufficient quantity.

Atropa belladonna or Atropa bella-donna, commonly known as belladonna or deadly nightshade, is a perennial herbaceous plant in the family Solanaceae, native to Europe, North Africa, and Western Asia. The foliage and berries are extremely toxic, containing tropane alkaloids. These toxins include scopolamine and hyoscyamine which cause a bizarre delirium and hallucinations, and are also used as pharmaceutical anticholinergics. The drug atropine is derived from the plant. It has a long history of use as a medicine, cosmetic, and poison. Before the Middle Ages, it was used as an anesthetic for surgery, the ancient Romans used it as a poison (the wife of Emperor Augustus and the wife of Claudius both used it to murder contemporaries) and predating this it was used to make poison tipped arrows. The genus name "atropa" comes from Atropos, one of the three Fates in Greek mythology, and the name "bella donna" is derived from Italian and means "beautiful woman".

[Atropa Belladonna]

[Nerium Oleander]

Narcissus is the botanic name for a genus of mainly hardy, mostly spring-flowering, bulbs in the Amaryllis family native to Europe, North Africa, and Asia. There are also several Narcissus species that bloom in the autumn. Though Hortus Third cites 26 wild species, Daffodils for North American Gardens cites between 50 and 100 including species variants and wild hybrids. Through taxonomic and genetic research, it is speculated that over time this number will probably continue to be refined. Daffodil is a common English name, sometimes used now for all varieties, and is the chief common name of horticultural prevalence used by the American Daffodil Society. The range of forms in cultivation has been heavily modified and extended, with new variations available from specialists almost every year. All Narcissus varieties contain the alkaloid poison lycorine, mostly in the bulb but also in the leaves. On 1 May 2009 a number of school children fell ill at Gorseland Primary School in Martlesham Heath, Suffolk, England after adding a daffodil bulb to soup during a cookery class. The bulbs could often be confused with onions, thereby leading to incidents of accidental poisoning.

Viscum album is a species of mistletoe, the species originally

so-named, and also known as European Mistletoe

or Common Mistletoe to distinguish it from other related species. It is native

to Europe and western and southern Asia. The toxic lectin Viscumin

has been isolated from Viscum album. Viscumin is a cytotoxic

protein that binds to galactose residues of cell surface glycoproteins and may

be internalised by endocytosis. Viscumin strongly inhibits protein synthesis by

inactivating the 60 S ribosomal subunit.

[Narcissus]

[Viscum Album]