oleander has definitions from the field of botany
1
[ noun ] (botany) an ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regions

Used in print

(Helen Hooven Santmyer, "There Were Fences"...)

My great_grandmother , I have been told , made her garden her great pride ; she cherished rare and delicate plants like oleanders in tubs and wall-flowers and lemon verbenas in pots that had to be wintered in the cellar ; she filled the waste spots of the yard with common things like the garden_heliotrope in a corner by the woodshed , and the plantain_lilies along the west_side of the house .

Related terms

poisonous_plant Nerium

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