This black spot can be eaten, is the black powder fungus, but soak the water out of the water, it is really like a black head, simply fast cause discomfort.

Wild rice is grown in the water, the water there is a kind of fungus called mizuno black powder plant, it will be parasitized in the stem of wild rice, in the mizuno black powder under the stimulation of wild rice stems grow and expand, produce wild rice.

But in the case of more black spots, most of the wild rice is already older, and the taste may not be so good.