Xanthorrhoea glauca D.J.Bedford APNI* 
Description: Trunk 1–5 m high, branched or single; crowns 1–many, ± spherical.
Leaves quadrate-rhombic to narrowly transverse-rhombic in T.S., 1.3–5.0 mm wide, 0.9–2.6 mm thick, blue-green to greyish, glaucous.
Scape 0.5–1 m long, 18–46 mm diam.; spike 1.5–4 times as long as scape, rarely equal to scape, 100–200 cm long, rarely to 250 cm, 3.5–7.7 cm diam.; cluster bracts prominent for most of spike length, ± narrow-triangular, subglabrous; packing bracts acute or triangular, subglabrous, rarely glabrous. Outer tepals acute to narrow-triangular, beaked, without proboscis, glabrous except hairs in beak. Inner tepals erect to slightly recurved, with proboscis, glabrous except hairs at apex.
Distribution and occurrence: Widespread.
NSW subdivisions: NC, NT, CT, ST, NWS, CWS, SWS, NWP, SWP
Other Australian states: Qld
There is some overlap of characters between the subspecies where their distributions abut.
Text by D. J. Bedford
Taxon concept:
| | Key to the subspecies | |
| 1 | Leaves ± transverse-rhombic to narrowly transverse-rhombic, apically transverse-linear, mostly 3–4 mm wide in T.S., 1–2.6 mm thick, blue-green. Scape 27–46 mm diam.; spike 100–200 cm long, 4–6 cm diam.; cluster bracts with hairs only towards base of outer surface, margins glabrous; packing bracts acute or triangular. Outer tepals triangular to narrow-triangular, with a beak to 1.5 mm long | subsp. glauca |
| Leaves ± quadrate-rhombic to broadly transverse-rhombic in T.S., 1.3–2.8 mm wide, O.9–1.6 mm thick, greyish. Scape 18–40 mm diam.; spike 100–160 cm long, 4–5 cm diam.; cluster bracts with hairs mainly at margins; packing bracts acute. Outer tepals acute, with beak to 0.5 mm long | subsp. angustifolia |
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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