Warning

Seek urgent medical attention for all ingestions.

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.

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.

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.

Toxicity

  • Potentially toxic

  • Respiratory irritant

Symptoms

All parts of the plant are toxic, especially the fruit, and can cause elevated temperature, rapid pulse, excess salivation and gastritis.

Images

Green cestrum bush featuring bright yellow flowers, surrounded by lush foliage in a tranquil forest environment.
Photo by Mary Louden
Green cestrum plant displaying clusters of black fruits amid rich green leaves.
Photo by Mary Louden

Details

Common name: Green cestrum

Botanical nameCestrum 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.