South African Yam Under Threat

Unique yam under threat

Only two populations of this South African species are known in the wild.
“This is the most unique and unusual yam I have come across, and probably the most threatened”


Kew yam expert Dr Paul Wilkin










Botanist Linda Loffler monitoring Dioscorea strydomiana (Image: John Burrows)








One of Kew's most striking new recent discoveries is Dioscorea strydomiana - a critically endangered species from South Africa. There are only two populations of about 200 plants known in the wild. This species is regarded as a cancer cure in the region where it grows, and is consequently under threat from over-collection by medicinal plant collectors who cut pieces off the tubers. Dioscorea strydomiana does not look like a typical yam – it is shrub-like in appearance with a huge, slow-growing, lumpy wooden tuber above the ground measuring up to 1m in height and diameter. The tuber sprouts multiple shoots each spring.

For more information:

The Indepedent: http://www.independent.co.uk/environment/nature/treasure-trove-of-nearly-300-new-plants-discovered-by-kew-experts-1847215.html

The Guardian: http://www.guardian.co.uk/science/2009/dec/22/kew-gardens-new-plant-species

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