Pinus ponderosa is a dominant tree in the Kuchler plant association, the ponderosa shrub forest. Like most western pines, the ponderosa generally is associated with mountainous topography. However, it is found on banks of the Niobrara River in Nebraska.
anal region the part of the perineal region that surrounds the anus. axillary region the area of the upper chest surrounding the axilla, lateral to the pectoral region. epigastric region the abdominal region that is superior and central in location, above the umbilical region and between the two hypochondriac regions.
1 The cranial region encompasses the upper part of the head while the. 2  facial region encompasses the lower half of the head beginning below the ears. 3  The eyes are referred to as the orbital or ocular region.  The cheeks are referred to as the buccal region.