blue stem

American  

noun

Plant Pathology.

1. 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.

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Example Sentences

Atlantic white cedars grow among little blue stem, American holly and the eastern prickly pear- the only cactus native to the Northeast.

From Washington Times • Oct. 24, 2015

Tiny swirls of yellow flame wavered in her wake, crackled feebly for an instant in the shorter herbage, then, reaching out tongues into the longer blue stem beyond, leaped forward like a frolicsome animal.

From Chicken Little Jane on the Big John by Ritchie, Lily Munsell

And even where the ground wasn’t cut up by the countless wheels, it was packed so hard the blue stem has never grown there since.

From Chicken Little Jane on the Big John by Ritchie, Lily Munsell

Here is a fine one, like a thistle, with stiff prickly leaves, and a stiff blue stem.

From On the Seashore by Smith, R. Cadwallader

The blue stem and the bunch grass were dry.

From The Fighting Edge by Raine, William MacLeod