That means that pumpkins, kabocha squash, zucchini, spaghetti squash and so forth ... squash is botanically different than vegetables like kale, mushrooms or cauliflower, all of which do not ...
This squash can be baked or boiled whole, then cut in half, topped with sauce and eaten as if it were spaghetti, which makes it a useful gluten-free or low-calorie substitution in pasta recipes.