flag smut fungus

/flæg smət ˌfʌŋgəs/

Definitions of flag smut fungus

1. noun

   a smut fungus causing a smut in cereals and other grasses that chiefly affects leaves and stems and is characterized chains of sori within the plant tissue that later rupture releasing black masses of spores
   types:

   Urocystis tritici, wheat flag smut

   fungus affecting leaves and stems of wheat

   type of:

   smut, smut fungus

   any fungus of the order Ustilaginales