Thryptomene pinifolia is a species of flowering plant in the family Myrtaceae and is endemic to Kalbarri National Park in Western Australia. It is a shrub with linear leaves, and flowers with pale pinkish sepals and petals and seven or eight stamens.
Thryptomene pinifolia is a shrub that typically grows to a height of up to . Its leaves are linear, about long, wide and thick, on a petiole about long. They are prominently glandular and curve upwards. The flowers are arranged in clusters of two or three pairs near the ends of branchlets on peduncles long. The flowers are about wide with broadly egg-shaped, pale pink, petal-like sepals about long and wide. The petals are pale pink, about long and there are seven or eight stamens. Flowering occurs from October to November.[1]
Thryptomene pinifolia was first formally described in 2014 by Barbara Lynette Rye and Malcolm Eric Trudgen in the journal Nuytsia from specimens collected near Eurardy in 2000.[2] The specific epithet (pinifolia) means "pine-leaved".
This thryptomene grows in sand on sandplain in Kalbarri National Park in the Geraldton Sandplains biogeographic region of Western Australia.
Thryptomene pinifolia is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife meaning that it is poorly known and from only one or a few locations.[3]