what is ergot
Description. Ergot is a fungus that lives as a parasite in the blossoms of grasses. When the grass heads are nearly mature, it appears as jumbo grains protruding from the heads. Ergot grains, which are fungus bodies and not seeds, are several to many times the size of the grass seed.escription. Ergot is a fungus that lives as a parasite in the blossoms of grasses. When the grass heads are nearly mature, it appears as jumbo grains protruding from the heads. Ergot grains, which are fungus bodies and not seeds, are several to many times the size of the grass seed.