u/FrumpledFrumpus

Given the ubiquity of grasslands, savannas and prairies today (debateably the largest terrestrial biome by area), were there such environments before grasses, sedges and their relatives evolved? It's just hard for me to picture a flat dry land inhabited solely by stunted bushes and trees where precipitation could allow for so much more. I'm particularly interested in this question from a pre-angiosperm point of view, because I'm guessing angiosperms resembling grasses existed briefly before true grasses.