The island is full of lianas, which are those woody vines Tarzan used to swing about on whilst in the jungle. We know of 7 species on Rubondo, but I am sure there are more. Unfortunately, little is known about lianas because only recently did plant biologists become interested in them.
Lianas ascend to the forest canopy using other plants as support. They have relatively little structural support and allocate more resources to reproduction and stem and root elongation. Lianas remain rooted to the ground throughout their lives and often have special adaptations to attach themselves to their host and climb into the forest canopy. These adaptations include stem twining, clasping tendrils arising from stem, leaf and branch modifications, thorns and spines that attach the liana to its host, downward-pointing adhesive hairs, and adhesive, adventitious roots.
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