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Excoecaria cochinchinensis Lour.

Chinese croton

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Description

Excoecaria cochinchinensis is an evergreen shrub or small tree, usually 2–6 m tall, with a dense, bushy crown and upright branching habit. The stem is woody, greyish-brown, and produces a highly irritating white latex when damaged. Leaves are simple, opposite, leathery, elliptic to lanceolate, usually 5–15 cm long, with finely serrated margins, an acute apex, and a glossy dark green upper surface. The lower surface of leaves is often reddish-purple, providing an important ornamental feature. Flowers are small, unisexual, and arranged in axillary spikes or racemes. The species is generally dioecious, with male and female flowers occurring on separate plants. Male flowers are numerous and clustered, while female flowers are fewer and produce the characteristic fruits. Fruits are small, dry, three-lobed capsules containing three seeds.

Diagnostic Characters

Vegetative
Evergreen shrub with dense foliage. Opposite leathery leaves. Leaves often green above and reddish-purple beneath. Irritating milky latex.
Floral
Small unisexual flowers. Usually dioecious. Axillary spike-like inflorescences.
Fruit & Seed
Three-lobed dry capsule. Three seeds.

Distribution

Native range: Native to Southeast Asia, Southern China, Vietnam. Cultivated widely in Tropical Asia, Ornamental gardens worldwide.

In Pakistan: Cultivated as an ornamental shrub in Botanical gardens, Parks, University campuses, Private gardens.

Phenology

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Flowering
Fruiting
Flowering: Spring–summer Fruiting: Summer–autumn

Ethnobotany & Uses

Ornamental Importance
Highly valued because of Attractive reddish leaf undersides, Evergreen foliage, Dense hedge-forming growth. Uses Garden borders, Decorative shrubs, Landscape planting.
Medicinal Importance
Traditional uses include Treatment of skin conditions, Inflammation, Rheumatic complaints. Reported phytochemicals Diterpenoids, Flavonoids, Phenolic compounds, Toxicity. The latex is strongly irritating and may cause Severe eye irritation, Skin inflammation, Temporary blindness if contact occurs with eyes. The common name "Blindness Tree" refers to this latex property.
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Where it grows on campus

North-East Campus1
1
individuals mapped across 1 zone
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Taxonomic Notes

Excoecaria cochinchinensis belongs to the tribe Hippomaneae of Euphorbiaceae, a group known for latex-producing species.