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). Above 1500 m, the terrain consists of gravel and stone fields and is accordingly unstable. Nevertheless, some plants occasionally settle there, such as curled leaved neinei, snow totara (Podocarpus nivalis), mountain snowberry (Gaultheria colensoi), bristle tussock (Rytidosperma setifolium), bluegrass and Raoulia albosericea, which cover an area of 165 km2. Between 1700 and 2020 m there are some isolated Parahebe species, Gentiana bellidifolia and buttercups. Above 2200 m live only crustose lichens.