Boronia coerulescens subsp. coerulescens

Blue Boronia

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Usually a spindly shrub to c. 60 cm high (rarely more), glabrous to puberulous throughout; branchlets glandular-warty, often almost leafless. Leaves simple (in Victoria), subterete, entire, glandular-verrucose to nearly smooth, apex rounded, 1.5–8 mm long, 0.5–1.5 mm wide. Flowers axillary or terminal on short shoots, usually solitary, pedicel 2–5 mm long; sepals deltoid to ovate, imbricate, 1.5–7 mm long; petals imbricate, 3–9 mm long, midrib not raised, blue to pink-mauve to white, often drying light blue, persistent; stamen filaments sparsely ciliate; style hairy, longer than globular stigma. Follicles 3–4 mm long; seed c. 2.5 mm long, black-grey, dull, minutely rugose. Flowers mostly Aug.–Nov.

DunT, Glep, Gold, GGr, LoM, MuM, Wim. Also WA, SA, NSW. Occurring in western Victoria in drier areas in mallee woodland and heath on sand or sandstone, with a disjunct occurrence at Wedderburn.

A variable subspecies that grades to some extent into subsp. spicata Paul G.Wilson and subsp. spinescens (Benth.) Paul G.Wilson, both confined to southern Western Australia.

Source: Duretto, M.F. (1999). Rutaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-12-04
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Sapindales
family Rutaceae
genus Boronia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Boronia coerulescens subsp. coerulescens in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Boronia coerulescens subsp. coerulescens in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Goldfields present native
Greater Grampians present native
Dundas Tablelands present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory