Clackline Nature Reserve
 View of Clackline Nature Reserve from Refractory Road, 1995 (Australian heritage photographic library) |
Clackline Nature Reserve is the largest nature reserve in the Shire of Northam. It is located approximately one kilometre (0.62 mi) north of Clackline, in Western Australia's Wheatbelt region. The reserve is extends east to Clackline–Toodyay Road, south to one kilometre (0.62 mi) before Great Eastern Highway, and west to an unnamed road that runs north-west from Refractory Road. In March 2005, the reserve was 693.7 hectares (1,714 acres) in size, with an additional 45 hectares (110 acres) added in 2008/09. It is listed on the non-statutory Register of the National Estate.
Clackline Nature Reserve has two distinct landforms. To the west is a gently undulating terrain and in the east the land is dissected into steep sided valleys and ridges. Vegetation is chiefly woodland with variation in trees with soil type. They include jarrah, marri wandoo, powderbark wandoo, brown mallet, rock sheoak, Christmas tree and bull banksia. A rare species of orchid not known in any other reserve occurs, caladenia triangularis.
There are a range of soil types across Clackline Nature Reserve, with clays, sandy clays and loamy soils in the lower sections of the topography, while pallid zone clays are exposed on erosional slopes, and gravely soils occur at the top of breakaways. There is a similar diversity of vegetation, with wandoo at the low points, powderbark on the slopes, and jarrah or marri woodland on the breakaway tops. There are five general patterns of vegetation based around these species:
The reserve contains the rare plant species acacia aphylla (Leafless Rock Wattle) and the priority two flora species stenanthemum grandiflorum.
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