Common name: Rock Tussock-grass
Poa petrophila Vickery APNI* 
Description: Velvety-pubescent, densely caespitose perennial to 0.7 m high, with intravaginal innovations; lower sheaths tinted with purple, becoming loose.
Leaves with sheath finely and densely pubescent; ligule to 3 mm long, truncate or truncate-triangular; blade inrolled-terete or slightly compressed, mostly 0.5–0.7 mm wide, somewhat rigid, finely and densely pubescent.
Panicle 5–13 cm long, contracted or the lower branches somewhat spreading. Spikelets 3–8-flowered, c. 4–5 mm long. Glumes 2–3 mm long, acute or subacute, 3-nerved. Lemmas 3–4 mm long, usually hairy on the nerves and internerves below, distinctly scabrous upwards; web absent or reduced to a few hairs. Palea scabrous to pubescent on the back.
Flowering: summer.
Distribution and occurrence: Grows at elevations c. 1300 m near outcropping granite boulders in treeless 'plains' or elsewhere on thin stony soils overlying rocky outcrops; south from Kosciusko area.
NSW subdivisions: ST
Other Australian states: Vic.
Text by S. W. L. Jacobs & S. M. Hastings
Taxon concept: Flora of NSW 4 (1993)
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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