Sporothrix schenckii is a fungus that can be found in soil as well as in living and decomposing plant material such as peat moss. It is the causative agent of sporotrichosis, commonly known as "rose handler's disease". Infection occurs via the introduction of spores through a cut or puncture wound in the skin (e.g., from a rose thorn). This results in an initial local ulcer or pustule which is followed by ascending lymphangitis. In host tissue, it is found as a cigar-shaped yeast. It can be treated with itraconazole or a saturated solution of potassium iodide.