An aerobic gram-positive organism that develop branched and septated aerial and vegetative filaments. The type of colonies produced are dependent on the type of medium used. Spores are borne singly, either sessile or on sporophores. They have been isolated from soil, plants, dust, water, compost, and manure. They may occasionally be opportunist pathogens causing human infections following inhalation, or by contamination of an area of trauma.