Yellow oleander (Cascabela thevetia)

A large spreading shrub usually 2.5–3.5m tall.
The sweetly perfumed flowers are funnel-shaped, bright yellow or peach coloured, 5.5–7cm long and 2.5–4cm wide, grouped in clusters at the end of the branches.
The leaves are glossy green, strap-like, alternating on the stem, 5.5–15cm long and 0.5–1.5cm wide.

Toxicity category: 1, 3
Category 1 - Extremely toxicCategory 3 - Irritant
Warning: Seek urgent medical assistance for all ingestions.

Common name: Yellow oleander

Botanical name: Cascabela thevetia (also known as Thevetia peruviana or Thevetia neriifolia)

Other common names: Cook tree, Be-still tree, Lucky nut, Dicky plant

Family: Apocynaceae

General description: A large spreading shrub usually 2.5–3.5m tall.

Flowers: The sweetly perfumed flowers are funnel-shaped, bright yellow or peach coloured, 5.5–7cm long and 2.5–4cm wide, grouped in clusters at the end of the branches.

Leaves: The leaves are glossy green, strap-like, alternating on the stem, 5.5–15cm long and 0.5–1.5cm wide.

Fruit/Berries: The fruit are angular, green when immature, ripening black, broader than long and somewhat triangular in outline, with a raised ridge around the middle, about 3–4.5cm in diameter. The fruit is fleshy and soft like a plum and encloses a “stone” comprising two starchy kernels.

Other: The sap is milky. Cascabela thevetia is a restricted (category 3) species under Queensland’s Biosecurity Act 2014.

Symptoms: All parts of the plant are toxic if eaten, particularly the fruit and seeds. This species has been responsible for the deaths of several children. Symptoms may include a burning sensation in the mouth, vomiting, diarrhoea, dizziness and a slow or irregular heartbeat. The sap may be an irritant and cause dermatitis or blistering.

Toxicity category: 1, 3
Category 1 - Extremely toxicCategory 3 - Irritant
Warning: Seek urgent medical assistance for all ingestions.

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