Prunus avium is a deciduous tree growing to 15â32 m (49â105 ft) tall, with a trunk up to 1.5 m (4.9 ft) in diameter. Young trees show strong apical dominance with a straight trunk and symmetrical conical crown, becoming rounded to irregular on old trees.
Written by Mindy Pratt, Utah State University. The term âriparianâ is defined as vegetation, habitats, or ecosystems that are associated with bodies of water (streams or lakes)) or are dependent on the existence of perennial, intermittent, or ephemeral surface or subsurface water drainage.
A planarian is one of many flatworms of the Turbellaria class. It is also the common name for a member of the genus Planaria within the family Planariidae. Sometimes it also refers to the genus Dugesia. Planaria are common to many parts of the world, living in both saltwater and freshwater ponds and rivers. Some species are terrestrial and are found under logs, in or on the soil, and on plants in humid areas. Planaria exhibit an extraordinary ability to regenerate lost body parts. For example, a planarian split lengthwise or crosswise will regenerate into two separate individuals. Some planarian species have two eye-spots (also known as ocelli) that can detect the intensity of