Cyanothamnus defoliatus is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a straggly shrub with simple, thread-like leaves and white to pink, four-petalled flowers that are pale blue on the back.
Description
Cyanothamnus defoliatus is a straggly shrub with thin stems and that grows to a height of about 60 cm (20 in). Its branches and leaves are glabrous. The leaves are simple, often fall off early and thread-like or more or less thin cylindrical, about 5 mm (0.2 in) long. The flowers are borne in branching groups on the ends of the branches and in leaf axils on thin pedicels 3–5 mm (0.1–0.2 in) long. The four sepals are broadly egg-shaped and leathery, about 2 mm (0.08 in) long. The four petals are elliptic, white to pink on the upper surface and pale blue with a darker strip below and 5–7 mm (0.20–0.28 in) long. The eight stamens have woolly hairs and the style is thin with a minute stigma. Flowering occurs from September to October.[2][3]
^ abDuretto, Marco F.; Wilson, Paul G.; Ladiges, Pauline Y. "Boronia defoliata". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 6 March 2019.
^Duretto, Marco F.; Heslewood, Margaret M.; Bayly, Michael J. (2020). "Boronia (Rutaceae) is polyphyletic: Reinstating Cyanothamnus and the problems associated with inappropriately defined outgroups". Taxon. 69 (3): 481–499. doi:10.1002/tax.12242. S2CID225836058.
^Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 180. ISBN9780958034180.