In the kitchen the pumpkin is tougher, both skin and flesh. The butternut squash is also much softer and sweeter and can be easily mistaken for a sweet potato ...
The main difference would be the appearance and skin texture. The pumpkin stem is very hard and jagged, whilst the squash stem is a little hollow and much lighter and softer . Otherwise, they both belong to the same plant genus, Cucurbita, but variet