Kunzea glabrescens is a shrub or tree with several main stems and many branches and which grows to a height of up to . The leaves are linear to lance-shaped with the narrower end towards the base, mostly long and less than wide with a
petiole up to long. The flowers are arranged in dense heads of 18 to 28 mainly on the ends of the longer branches. The flowers are surrounded by egg-shaped
bracts long and wide and pairs of broadly egg-shaped bracteoles which are long and wide. The
floral cup is long and the five
sepals are egg-shaped to triangular, glabrous and long. The five
petals are long and pale yellow and there 30-45
stamens. Flowering mostly occurs in October and November and is followed by fruit which are urn-shaped
capsules. ==Taxonomy and naming==