Oleander

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  Oleander (scientific name: Nerium oleander) is a shrub or small tree in the dogbane family Apocynaceae, toxic in all its parts
• The origins of the taxonomic name, Nerium oleander, was first assigned by Linnaeus in 1753
• It is the only species currently classified in the genus Nerium
• Oleander is one of the most poisonous commonly grown garden plants

Oregano

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  Oregano (scientific name: origanum vulgare) is a flowering plant in the mint family Lamiaceae
• It is native to temperate Western and Southwestern Eurasia and the Mediterranean region

• It is sometimes called wild marjoram and its close relative is called sweet marjoram
  
  Sweet marjoram