I don't understand why there are both peppers and jalapenos listed. A jalapeno is a type of pepper. Same thing for zucchini and "hard" squash, which I assume is a winter squash. Zucchini is a type of summer squash, and there are many varieties of winter squash such as Hubbard, acorn, butternut, etc. but all come under the heading of squash.
2) For being a common vegetable, "hard squash" gets very few mentions on Google (less than 1 percent of the mentions of "winter squash").