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Thermal response to ambient temperature

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This taxon was first analyzed for thermal characteristics almost one century ago. These studies demonstrated that "Euphorbia virosa" has a high tolerance for elevated desert temperatures, with temperatures within its internal gas filled cavity having a daily range of up to 49 degrees Fahrenheit, bringing the internal plant temperature to a maximum daily level of 125 degrees Fahrenheit.
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Euphorbia virosa

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Euphorbia virosa, the Gifboom or poison tree, is a plant of the spurge family Euphorbiaceae. It has a short main stem, usually twisted, from which 5–10 cm branches emerge. These leafless branches have 5 to 8 edges. Paired thorns grow in regularly spaced intervals from the edges.[1]

Euphorbia virosa is commonly distributed from the Orange River in South Africa to Southern Angola, and occurs throughout the Namib Desert, mainly on rocky slopes.[2] The plant contains within the branches a milky and creamy substance with carcinogenic properties. This substance is very poisonous and is used by San (Bushmen) to dip the tips of their hunting arrows. Contact with it causes skin irritation, and if the eyes are afflicted, blindness may occur.[1]

Gifboom in a natural setting at the Fish River Canyon

References

  1. ^ a b Descriptions and articles about Euphorbia virosa - Encyclopedia of Life
  2. ^ Burke, Antje (2012). 111 Roadside plants. Windhoek: Namibia Scientific Society. p. 147. ISBN 978-99945-76-51-7.

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Euphorbia virosa: Brief Summary

provided by wikipedia EN

Euphorbia virosa, the Gifboom or poison tree, is a plant of the spurge family Euphorbiaceae. It has a short main stem, usually twisted, from which 5–10 cm branches emerge. These leafless branches have 5 to 8 edges. Paired thorns grow in regularly spaced intervals from the edges.

Euphorbia virosa is commonly distributed from the Orange River in South Africa to Southern Angola, and occurs throughout the Namib Desert, mainly on rocky slopes. The plant contains within the branches a milky and creamy substance with carcinogenic properties. This substance is very poisonous and is used by San (Bushmen) to dip the tips of their hunting arrows. Contact with it causes skin irritation, and if the eyes are afflicted, blindness may occur.

Gifboom in a natural setting at the Fish River Canyon
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