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Taro | Thorn Apple | Titoki | Tropical Periwinkle | Turutu | Tutsan | Tutu

Taro (Colocasia esculenta). All parts of this popular polynesian food crop are poisonous, so the root and leaves must be cooked properly before being eaten. Even if eaten when only partly cooked, it will burn the throat. It is a member of the poisonous arum lilly family.

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Thorn apple or datura (Datura stramonium). The black seeds are sometimes eaten and contain a powerful, dangerous drug, as do other parts of the plant. This weed has white trumpet flowers and appears in gardens and waste places in summer. The name thorn apple is sometimes wrongly applied to angel's trumpet, which belongs to the same section of the nightshade family, although it looks quite different.

 

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Titoki (Alectryon excelsus). The round black seeds in their scarlet cup are a familiar sight in the Auckland region, and this striking colour contrast appeals to all ages. Titoki is included because of its attractive fruits and the uncertainty as to whether or not they are toxic. It is sensible to avoid it because many members of the soap tree family are poisonous.

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Tropical periwinkle (Catharanthus roseus, commonly known as Vinca rosea). An annual with pink or white flowers. Although an important medicinal plant, tropical periwinkle is very poisonous. It is a member of the oleander family that is mainly grown in mild northern areas.

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Turutu or blueberry lily (Dianella nigra). This native plant in the flax family has attractive violet berries reported as being poisonous. Australian species are sometimes grown, especially in Auckland, and their berries may also be poisonous.

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Tutsan (Hypericum androsaemum). This small shrub is often seen in bush remnants and plantations. Although not as poisonous as some other Hypericum species, such as the well-known St. John's Wort (H. perforatum), the black berries should not be eaten.

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Tutu (Coriaria species). All species are very poisonous. The fleshy black berries should be avoided, because the seeds inside them are poisonous. It grows in bush remnants and margins, in scrub, and often in places modified by humans, like plantations. The usual lowland species is C. arborea, and in mountains this species grows with the smaller C. sarmentosa.

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