Mala prefer spinifex sandplain habitat, the animals build burrows under large spinifex hummocks. Where continuous vegetation occurs, it usually consists of hummocks of mosses, lichens, grasses, and sedges. Younger turtles may bask on sedge and alder hummocks. Some bogs and fens can support limited shrub or tree growth on hummocks. The low-lying areas between hummocks are called hollows. The hummocks alternate with shallow wet depressions or flarks. Here the ridges of the string bogs can grow into hummocks several metres high. Examples of these bedforms are ripples, dunes, anti-dunes, sand waves, hummocks, bars, and delta slopes. The plant can often be found growing on hummocks of "Sphagnum" mosses. On the ridges or hummocks, ground ice is found until early summer. Along the Florida Panhandle, most dunes are considered to be foredunes or hummocks. The moss will form thread-like branches interwoven within hummocks. Tends to form hummocks and dense carpets. Debris avalanche deposits are characterized by the debris-avalanche block (hummocks) and the debris-avalanche matrix. The floor has numerous hummocks and rough spots.