green cattle
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plant

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leaves

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fruit

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flowers

Tutsan

Hypericum androsaemum

Other names

Description

Small shrub about 1m high. Leaves ovate and obtuse. Flowers yellow with five petals and long stamens. The only St. John’s wort to produce berries.

Similar plants

Other members of the St John’s wort family.

Distribution

Common all over NZ in waste ground and forest edges. Seeds probably spread by birds.

Toxin

Dubious toxicity suggesting skin disease. Reported to have killed cattle in Auckland, but feeding trials produced no signs. May contain hypericin, but reports are contradictory. The plant is not palatable and rarely ingested.

Species affected

Cattle and humans.

Clinical signs acute

Reported to produce skin ailments (Photosensitivity?).

Clinical signs chronic

Post mortem signs

Evidence of ingestion and skin disease (photosensitivity?)

Diagnosis

History and plants in stomach.

Differential diagnosis

Treatment

Symptomatic

Prognosis

Prevention


References

Conner H.E. The Poisonous Plants In New Zealand. 1992. GP Publications Ltd, Wellington

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