Carex appressa is a densely tufted,
perennial sedge that forms clumps up to in diameter. Its stems grow to around in height, and are hard and solid, becoming rough towards the top of the stem. Its leaves are wide, are rough on the
margins, and grow mostly out of the base of the plant. It has a brownish, spike-like
inflorescence made of 20 or more spikes, growing long. Its flowers are numerous oval-shaped brownish spikelets that are approximately long, with both male and female flowers mixed together in the spikes. Its nut is contained in a flattened, oval-shaped,
beaked, hairless sack or
utricle that is long. (AM AK351569) ==Habitat and ecology==