Scientific name: Nymphaea lutea
What: roots, young leaves, flowers, seeds
How: roots must be peeled then eaten raw or can be dried and pounded into flour; flowers-raw or cooked; seeds-raw or roasted, young flowers cooked
Where: still water
When: flowers-June to August, seeds-August to September, young leaves early spring-late summer
Nutritional Value: carbohydrates in roots, protein in seeds
Dangers: root are too bitter to eat, regardless of what you may have read in a book.
Spatterdock in drying pond. Normally they would be in water rather than mud.
Root tuber and young leaves. Peterson's Guide to Wild Edibles is wrong, these suck!!
Another picture of the tuber and more mature leaves.
The tuber/roots of spatterdock supposedly contain a fair amount of calories but I've never found any whose bitter taste didn't make me throw up. Seriously, don't bother trying to eat these tubers/roots! Whatever other book you've read that says these are good food are lying to you!
The seeds formed in the flower-bodies aren't nearly as bitter and taste best roasted.