Leptospermum lanigerum, Woolly Tea-tree. Photographed on Hartz Plateau 12th January 2008. The area where I took this picture has a lot of water flow amongst the scrub. This plant is described as "Common, widespread in damp places, river banks, montane grasslands and rainforests of west coast where it may become a tree to 18m." (A Guide to Flowers and Plants of Tasmania, Launceston Field Naturalists Club.)
References: ASGAP, ANBG, Uni of Tas, Google Search.
Melaleuca squamea, the Swamp Melaleuca. Photographed on Hartz Plateau 12th January 2008. There are a lot of these plants along the first part of the track, mostly quite small shrubs. They are apparently widespread in wet heathland between sea level and 1500m, which seems quite a range. They range in flower colour at Hartz from pink-purple through to cream and white.
References: Uni of Tas, CHAH, Google Search.