1. The geography exhibits a mix of flat, undulating plains , ridges and ranges. 2. The resulting landscapes are relatively flat, undulating plains with low relief. 3. The terrain is mostly flat to undulating plain , with mountains in the northwest. 4. The southern portion of the city is an undulating plain . 5. The district comprises a long undulating plain , sloping gently towards the Kaveri River in the south-east. 6. The northern block is made up of a narrow river valley flanked by jagged hills and undulating plains . 7. Benue's topography is mainly undulating plains with occasional elevations of between 1, 500m and 3, 000m above sea level. 8. It is often found in clay, rocky loam or sandy soils on undulating plains , low-lying areas and on roadsides. 9. It is endemic to the south-west of Western Australia, where it occurs on sandy or rocky soils of undulating plains . 10. To its south lies an area of about 128 km 2 which is highly dissected and is an undulating plain .