Calytrix similis is a glabrous shrub that typically grows to a height of up to and grows from the tips of the flowering stems. Its leaves are linear, narrowly elliptic, elliptic or lance-shaped with the narrower end towards the base, long and wide on a
petiole long, with
stipules up to long at the base of the petiole. The flowers are arranged singly or in scattered small groups on a
peduncle long with elliptic lobes long. The
floral tube is spindle-shaped, long and has ten ribs. The
sepals are egg-shaped, long, wide with an
awn up to long. The petals are purple and there are 45 to 50
stamens in three or four rows. Flowering occurs from January to May. This shrub is superficially similar to
C. tenuiramea. ==Taxonomy==