This is Randi Hacker with another Postcard from Abroad from the KU Centers for East Asian Studies and African Studies.
You think the trees in your neighborhood are old? Well, listen to this: The pyrogenic geoxylic suffrutex, in Pretoria, South Africa, makes them seem like mere babes. These clonal, woody plants can live more than 13,000 years, and that isn’t even their most astonishing characteristic: These trees grow almost entirely underground. Only the uppermost leaves and branches of these “underground forests” are visible above the ground and then only in the spring. Despite the fact that they are invisible most of the year, their underground network of trunks and limbs is always there, right beneath your feet. This evolutionary quirk means that these trees are practically immortal: Grazing can’t kill them, brush fires can’t kill them and drought can’t kill them. You might say that, in Pretoria, you can’t see the forest OR the trees.
With thanks to Mackenzie Jones for this text, from the KU Center for East Asian Studies, this is Randi Hacker. Wish you were here.
Sources:
http://www.ted.com/talks/rachel_sussman_the_world_s_oldest_living_things/transcript#t-656904
http://www.gardendesign.com/ideas/botanic-notables-the-underground-forest