Calytrix brownii is an erect or prostrate shrub that typically grows to a height of , its branchlets sometimes covered with soft hairs. Its leaves are linear to narrowly elliptic, long and wide on a
petiole long. There are
stipules up to long at the base of the petioles. Each flower is on a
peduncle long with
bracteoles long. The
floral tube has 10 ribs and is free from the
style. The
sepals are joined at the base with egg-shaped to lance-shaped lobes long and wide. The petals are white to creamish, long and wide and there are about 18 to 25 stamens in a single row. Flowering occurs from February to December with a peak between March and August. ==Taxonomy==