zygophyte

from The Century Dictionary.

• noun A plant characterized by the production of zygospores; a plant in which reproduction consists in a confluence of two similar protoplasmic masses. See cut under conjugation, 4.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Bot.) Any plant of a proposed class or grand division (Zygophytes, Zygophyta, or Zygosporeæ), in which reproduction consists in the union of two similar cells. Cf. oöphyte.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun botany Any plant of a proposed class or grand division in which reproduction consists in the union of two similar cells.