Eucalyptus umbra, known as the Broad-leaved White Mahogany is a common eucalyptus tree of the high rainfall coastal areas of New South Wales and adjacent areas in south eastern Queensland. The bark is rough, resembling a stringybark, though not as coarse, and in flat strips. Thick, fibrous bark, greyish brown in colour. A small or medium sized tree, up to 25 metres tall. Sometimes a shrub in the poorer skeletal soils.