They're not, technically, thorns, which might be themselves extensions in the stem. Prickles are extensions on the plant epidermis. These will bring about pain to most creatures, such as people, who would look for to infiltrate the plant’s flower; nevertheless, deer usually are witnessed grazing the flowers of Rose Bushes, https://jaredqepan.blazingblog.com/14377241/buy-roses-online-can-be-fun-for-anyone