Crazy bushfire fuel
Indeed! The last couple of wildfires and man-made fires most of the "experts" said that non-indigenous (alien) trees helped spread the fires quicker and made them more intense as the local fynbos burns differently; quicker and less intense fires.
soursobs
Oh, yes! African wood-sorrel or Cape-sorrel. I love them in a salad, very tangy, although the oxalic content is quite high, hence the tanginess.