How does the apical meristems of wheat plant protect them from grazing animals?

Wheat is a monocotyledon, and as such does not have apical meristems (except in fruiting bodies). The leaves grow from the base so grazers do not remove the growing region when browsing. Often many types of plant develop full size flowers on miniature stalks which grow rapidly overnight - have you ever noticed dandelions appear overnight? - The flowers are formed in the axils of the leaves (base of leaf stem junction), the the flower stalk grows raidly (15cm in 3 hours) to raise the flower head above surrounding vegetation for pollination.