Stemphylium botryosum

Stemphylium botryosum (family Pleosporaceae, order Pleosporales) is a species of fungi and plant pathogen infecting several hosts including alfalfa, red clover, peanut, soybean, lentils, beet, tomato, lettuce, hemp and carnations.

It was originally found on Medicago sativa (Alfalfa) in Ontario, Canada and named as Pleospora tarda but it was later found to be the anamorph of Stemphylium botryosum.