What does the word biennial mean?

Usage examples for biennial

  1. Being a biennial plant, it is not poisonous in this country to cattle during the first year, if they eat its leaves. – Herbal Simples Approved for Modern Uses of Cure by William Thomas Fernie
  2. Strong- growing perennials, asters or the biennial Rudbeckia triloba, are good for this purpose. – Making a Garden of Perennials by W. C. Egan