Pseudomonas pyocanea is a bacterium species belonging to the Pseudomonas genus that is known for its characteristic blue-green pigmentation. Some synonyms for Pseudomonas pyocanea include Pseudomonas aeruginosa, Pseudomonas fluorescens, and Pseudomonas putida. These bacteria are ubiquitous in nature and are found in soil, water, and on the surfaces of plants and animals. Pseudomonas pyocanea can also be found in clinical settings, particularly in those with compromised immune systems, and can cause serious infections. While these organisms are often referred to synonymously, each one has distinct characteristics and may differ in their virulence and ability to cause disease.