Erythema nodosum is a type of panniculitis that affects subcutaneous fat in the skin, usually first evident as an outcropping of erythematous nodules that are highly sensitive to touch.1 Most nodules are located symmetrically on the ventral aspect of the lower extremities.rythema nodosum nodules vary from 0.4 to 4 inches (1 to 10 cm) in diameter and are poorly demarcated, reflecting their subcutaneous anatomic location (Table 11â4; Figure 1) . Pretibial involvement is most common, although the extensor surfaces of the forearm, the thighs, and the trunk also may be affected.
David Beaulieu. Xeriscape landscaping or, simply, xeriscaping, by definition, is landscaping designed specifically for areas that are susceptible to drought, or for properties where water conservation is practiced. Derived from the Greek xeros meaning dry, the term means literally dry landscape..
Public perception of xeriscaping has generally been negative as many assume that that these types of landscapes are ugly or limiting. However studies have shown that education in water conservation practices in the garden can greatly improve the public's perception of xeriscaping.lants whose natural requirements are appropriate to the local climate are emphasized, and care is taken to avoid losing water to evaporation and run-off. The specific plants used in xeriscaping depend upon the climate.