|Sweet gum tree seed pod.|
Thinking about this, and reading Fred Pearce's "The New Wild" has made me realise that the same rhetoric that has recently been applied to refugees is also given to what invasion biologists refer to as "alien invaders". ("a catchall for nastiness and a recipe for muddled thinking" says Fred Pearce) Plants such as Himalayan Balsalm and Knotweed would come into this category.
A lot of wild flowers are not appreciated because they are so widespread and wilfully pop up, ignorant to the fact that humans don't want them on 'their' patch. The dandelion of course, has a particularly clever way of dispersing and has become part of our landscape and childhood memories.
So I have collected and drawn a lot of seed pods, as part of this thinking and research. I have a way to go yet.