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Queensland Government
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Queensland Health
Health Services > Queensland Poisons Information Centre

Plants and mushrooms

Green cestrum

Green cestrum shrub close up of flowers of the Green cestrum shrub close up of fruit of the Green cestrum shrub
Category 2 toxicity iconCategory 4 toxicity icon

 Common name   Green cestrum
 Botanical name   Cestrum parqui
 Other common names   Green poisonberry, Chilean cestrum, Iodine bush, Willow-leaved jessamine
Family   Solanaceae
 General description   A single or multi-stemmed, weedy shrub up to 2m tall, sometimes to 5m, with extensive yellow roots. It has been cultivated as an ornamental in the past and is a weed in some areas.
Flowers   The flowers are tubular, 2-2.5cm long with five star shaped lobes, greenish-yellow and grouped in clusters at the ends of the stems.
Leaves   The leaves are alternate, soft dark green, 2-10.5cm long and 0.5-2.4cm wide. The leaves have a strong unpleasant odour when crushed.
 Fruit/Berries   The fruit are succulent shiny black berries, oval or teardrop shaped and about 1.0-1.5cm long. When crushed, the berries will stain the skin an iodine- brown.
Other   The sap is clear.
Symptoms   All parts of the plant are toxic, especially the fruit, and can cause elevated temperature, rapid pulse, excess salivation and gastritis
Toxicity category   2
Warning   Seek urgent medical attention for all ingestions.


Last Updated: 24 August 2010
Last Reviewed: 31 October 2008