Flora of Victoria

Large shrub to small tree, 1–6(–12) m high, aromatic; branches glabrous or sparsely covered with short, curled hairs and subsessile glands. Leaves ovate (to narrow- or linear-ovate), (25–)40–120 mm long, (5–)10–32 mm wide, dark green above, paler below, glabrous, base cuneate to shortly attenuate, slightly oblique, margin toothed, occasionally teeth reduced or absent, apex acute to acuminate; petiole 6–10 mm long. Flowers in a terminal racemose or paniculate inflorescence; bracteoles persistent, 2–4 mm long, 0.2–0.4 mm wide. Calyx 4–5 mm long, tube 2–3 mm long, adaxial lobe 1.5–3 mm long (enlarged in fruit); corolla white to pale mauve with purple spots in throat, 10–15 mm long; anther appendage c. 1.5 mm long.

CVU, DunT, EGL, EGU, GipP, Gold, GGr, HFE, HNF, HSF, MonT, NIS, OtP, OtR, SnM, Strz, VAlp, VRiv, VVP, WaP, WPro, Wim.

Throughout its range P. lasianthos is very variable, but 2 varieties are recognized, both in Victoria.

In the gorge of Cultivation Creek, western Grampians, it forms a hybrid with P. spinosa, the result being a sprawling shrub to 6 m wide, 1 m high, with weakly spinose branches, leaves ovate to spathulate, 4–20 mm long, 2–9 mm wide, weakly toothed, and the flowers solitary in axils.

Source: Conn, B.J. (1999). Lamiaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.

Updated by: Val Stajsic, 2018-08-24

Key to the varieties of Prostanthera lasianthos

life Life

kingdom Plantae

phylum Tracheophyta

class Magnoliopsida

superorder Asteranae

order Lamiales

family Lamiaceae

genus Prostanthera

Higher taxa

species Prostanthera lasianthos Labill.

Subordinate taxa

variety Prostanthera lasianthos var. lasianthos

variety Prostanthera lasianthos var. subcoriacea F.Muell. ex Benth.

Victoria

**Source:** AVH (2014). *Australia's Virtual Herbarium*, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Prostanthera lasianthos in AVH ; *Victorian Biodiversity Atlas*, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Prostanthera lasianthos in Victorian Biodiversity Atlas

Bioregion	Occurrence status	Establishment means
Wimmera	present	native
Victorian Volcanic Plain	present	native
Victorian Riverina	present	native
Gippsland Plain	present	native
Otway Plain	present	native
Warrnambool Plain	present	native
Goldfields	present	native
Central Victorian Uplands	present	native
Greater Grampians	present	native
Dundas Tablelands	present	native
Northern Inland Slopes	present	native
East Gippsland Lowlands	present	native
East Gippsland Uplands	present	native
Wilsons Promontory	present	native
Highlands-Southern Fall	present	native
Highlands-Northern Fall	present	native
Otway Ranges	present	native
Strzelecki Ranges	present	native
Monaro Tablelands	present	native
Highlands-Far East	present	native
Victorian Alps	present	native
Snowy Mountains	present	native

Bioregions of Victoria

State distribution

State
Queensland
New South Wales
Australian Capital Territory
Victoria
Tasmania

Prostanthera lasianthos Labill.

Victorian Christmas Bush

Victoria

State distribution