The Alternative Invasive Species

Imagine if I ditched the insidious but boring Imperata cylindrica (L.) Beauv. for an invasive species with an aspect that would better capture the public imagination:

Didymosphenia geminata (Lyngbye) M. Schmidt!
[Source]

Also considered: 2 species of ant, 2 species of snail, 1 snail-eating flatworm, 1 comb jellyfish, common mynah, sparrow, rock pigeon, rabbit, brown rat and brown trout.

Now back to work.