Boronia capitata is a slender, spreading shrub that grows to a height of 15–130 cm (6–50 in). It has simple, thick, linear to club-shaped leaves 4–15 mm (0.2–0.6 in) long. The flowers are pink and are arranged in clusters on the ends of the branches, each on a pedicel 1–3 mm (0.04–0.1 in) long. The four sepals are broadly elliptic to narrow triangular, and the four petals are broadly elliptic, about 6 mm (0.2 in) long.[2][3][4][5]
Boronia capitata subsp. capitata has leaves and sepals that are glabrous or fringed with hairs and flowers from September to October;[9]
Boronia capitata subsp. clavata has thick leaves covered with long, soft hairs, and broadly elliptic sepals fringed with hairs and flowers from April to October;[10]
Boronia capitata subsp. gracilis slender leaves covered with long, soft hairs and narrow egg-shaped sepals with a hairy fringe and flowers from June to November.[11]
Distribution and habitat
Subspecies capitata is only currently known from sandplain habitat near Pingelly;[9][12]
^Duretto, Marco F.; Wilson, Paul G.; Ladiges, Pauline Y. "Boronia capitata". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 5 March 2019.
^ abBentham, George; von Mueller, Ferdinand (1863). Flora Australiensis. Vol. 1. London: Lovell Reeve and Co. p. 323. Retrieved 4 March 2019.
^Corrick, Margaret G.; Fuhrer, Bruce A. (2009). Wildflowers of southern Western Australia (3rd ed.). Dural, N.S.W.: Rosenberg Publishing. p. 190. ISBN9781877058844.
^ abDuretto, Marco F.; Wilson, Paul G.; Ladiges, Pauline Y. "Boronia capitata subsp. capitata". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 5 March 2019.
^ abDuretto, Marco F.; Wilson, Paul G.; Ladiges, Pauline Y. "Boronia capitata subsp. clavata". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 5 March 2019.
^ abDuretto, Marco F.; Wilson, Paul G.; Ladiges, Pauline Y. "Boronia capitata subsp. gracilis". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 5 March 2019.