NO
Yes! Many purple flowers are edible, ie: Chive Blossoms, Borage, Sage, Impatiens, Lavender, Lilac, Nasturtium, Pansy, and Violets, to name a fw.
Yes hamsters can eat Clover flowers My hamsters eats clover all the time. They love it. Some prefer the stem some the leaves.
No, clover is not poisonous to a guinea pig, I know that because I feed my guinea pig clover all the time.
they live in high grass lands