Dictionary.net

• A changing plant, or one which is more or less hygrophilous in summer and xerophilous in winter.

1920 - A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.

• [Greek] A changing plant, or one which is more or less hygrophilous in summer and xerophilous in winter (bot.).

1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth