blue stem

noun Plant Pathology.

a disease of raspberries and blackberries, characterized by blue discoloration of the stem, wilting, and discoloration and decay of the roots, caused by a fungus, Verticillium alboatrum. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for blue stem

  • To Dallas, laying the blue-stem of the swale, the hours of the morning went slowly.

    The Plow-Woman|Eleanor Gates
  • That night I camped between two large sand hills and made my bed in a tall bunch of blue-stem grass.

    A Texas Cow Boy|Chas. A. Siringo