Xanthorrhoea glauca subsp. angustifolia D.J.Bedford

Fl. Australia 46: 226 (1986) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Stem up to 5 m long, sometimes branched. Leaves forming an erect tuft when young, becoming spreading, quadrate-rhombic to broadly transverse-rhombic in cross-section, 1.3–2.8 mm wide, 0.9–1.6 mm thick, blue-green to greyish, glaucous. Inflorescence with flower-bearing part 100–160 cm long, 40–50 mm diam., 1–3.5 times as long as non-flowering axis which is 65–140 cm long and 18–40 mm diam.; bracts around flowers mostly prominent, narrow-triangular, sometimes tapered at base. Sepals with apex acute, without adaxial projection; petals glabrous except for a hairy, adaxial projection form the apex.

CVU, Gold, GGr, HNF, NIS, VAlp, VRiv. Occurs on rocky northern slopes of the Great Dividing Range from Chilton to forest south of Rushworth, with unverified records further west extending to the Grampians.

Some populations in Victoria have previously been regarded as long unburnt stands of X. australis. These two species are morphologically similar, X. glauca can only be reliably distinguished by the longer scape (>65 cm) and acute to somewhat spathulate bracts that surround the flowers. These two species appear to have different flowering cues. Xanthorrhoea glauca regularly flowers in the absence of fire. In contrast, flowering in X. australis is typically restricted to mass events in the year following fire. See Bellette (2014) for more information. 

Created by: Andre Messina, 2014-12-01
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Distribution map

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Xanthorrhoea glauca subsp. angustifolia in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Xanthorrhoea glauca subsp. angustifolia in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Riverina present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Northern Inland Slopes present native
Highlands-Northern Fall present native
Victorian Alps present native

State distribution

Distribution map
State
Queensland
New South Wales
Australian Capital Territory
Victoria