Assertion: national park's area | /r/HasProperty | around 150 km2
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Source sentences:
text: To the northwest, and around Mount Ruapehu, between an altitude of 1200 and 1500 m, tussock shrubland and tussock grass covers large areas (around 150 km2), consisting mainly of New Zealand red tussock grass (Chionochloa rubra), inaka, curled leaved neinei (Dracophyllum recurvum), wire rush (Empodisma minus), and bog rush (Schoenus pauciflorus), as well as heather and grasses like hard tussock (Festuca novaezelandiae) and bluegrass (Poa colensoi).