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|synonyms_ref = 〔(【引用サイトリンク】title=The Plant List: A Working List of All Plant Species )〕 |}} ''Cascabela thevetia'' (syn: ''Thevetia peruviana'') is a poisonous plant native to central and southern Mexico and Central America, and cultivated widely as an ornamental. It is a relative of ''Nerium oleander'', giving it a common name yellow oleander, and is also called lucky nut in the West Indies. ''C. thevetia'' is an evergreen tropical shrub or small tree. Its leaves are willow-like, linear-lanceolate, and glossy green in color. They are covered in waxy coating to reduce water loss (typical of oleanders). Its stem is green turning silver/gray as it ages.〔(【引用サイトリンク】 Thevetia peruvians )〕 Flowers bloom from summer to fall. The long funnel-shaped sometimes-fragrant yellow (less commonly apricot, sometimes white) flowers are in few-flowered terminal clusters.〔 Its fruit is deep red-black in color encasing a large seed that bears some resemblance to a 'Chinese lucky nut.' ==Toxicity== All parts of the ''C. thevetia'' plant are toxic to most vertebrates as they contain cardiac glycosides. Many cases of intentional and accidental poisoning of humans are known. The main toxins are the cardenolides called thevetin A and thevetin B; others include peruvoside, neriifolin, thevetoxin and ruvoside. These cardenolides are not destroyed by drying or heating and they are very similar to digoxin from ''Digitalis purpurea''. They produce gastric and cardiotoxic effects. Antidotes for treatment include atropine and digoxin antibodies and treatment may include oral administration of activated charcoal. Ovine polyclonal anti-digitoxin Fab fragment antibody (DigiTAb; Therapeutic Antibodies Inc.) can be used to treat ''T. peruviana'' poisoning, but for many countries the cost is prohibitive. A few bird species are however known to feed on them without any ill effects. These include the Asian koel, red-whiskered bulbul, white-browed bulbul, red-vented bulbul, brahminy myna, common myna and common grey hornbill. In South India and in Sri Lanka swallowing the seeds of ( Thevetia peruviana ) (Kaneru කණේරු (Sinhala), Manjal alari (Tamil) ) is one of the preferred methods for suicides in villages where they are grown in abundance. Extracts from ''C. thevetia'' are reported to possess antispermatogenic activity in rats. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cascabela thevetia」の詳細全文を読む スポンサード リンク
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