I came across this image the other day. I had heard of the Water Chestnut (Genus Trapa .) and that it could be used as a caltrop but had not seen them in such detail.
It is a pretty fearsome looking object and it is perhaps no surprise that one of the alternate common names is “Devil Pod”.
I remarked to a friend that they looked like something from Aliens and his comment was that they were not sexual enough for that. I pointed out that they do look a little like the uterus and fallopian tubes diagrams in biology textbooks.
If you have enjoyed this article or it has been helpful to you please feel free to show your appreciation. Thank you.