Calytrix birdii is a species of flowering plant in the myrtle family Myrtaceae and is endemic to inland areas of Western Australia. It is a shrub with egg-shaped to more or less round leaves and clusters of purple flowers with 45 to 55 reddish-purple stamens in several rows.
Calytrix birdii is a glabrous shrub that typically grows to a height of . Its leaves are egg-shaped with the narrower end towards the base, to more or less round, long and wide on a petiole long. There is a stipule up to long at the base of the petiole. The flowers are arranged singly or in small clusters. The floral tube has 10 ribs and tightly surrounds the style that is long. The sepals are joined at the base with more or less round blades long and wide with an awn up to long. The petals are purple, egg-shaped, long and wide, and there are 45 to 55 reddish-purple stamens in 4 rows. Flowering occurs from September to November.[1]
This species was first formally described by Ferdinand von Mueller who gave it the name Calycothrix birdii in his Fragmenta Phytographiae Australiae from specimens collected by Jess Young.[2] [3] In 1893, Benjamin Daydon Jackson transferred the species to the genus Calytrix as C. birdii in Index Kewensis.[4] The specific epithet (birdii) honours Samuel Dougan Bird, a lecturer in medicine at the University of Melbourne.[5]
Calytrix birdii grows in sand on sandplains in open spinifex heath and mallees in the Coolgardie and Murchison bioregions of inland Western Australia.