These are acorns—the nuts produced by oak trees.
More specifically, they’re the seeds of an Oak.
What you’re seeing in the image:
- A basket full of acorns (oak nuts)
- They vary in color (gold, brown, greenish, dark purple) depending on ripeness and oak species
- The caps (called “cups”) are usually removed or not visible on many of them
Quick facts:
- Acorns grow on oak trees in autumn
- They are food for wildlife like squirrels, deer, and birds
- Some cultures process certain types for food (after removing tannins)
- Raw acorns taste bitter because of natural tannins
If you want, I can also tell you whether these are safe to eat or how people traditionally prepare them.