World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew

Helictotrichon planiculme (Schrad.) Pilg., Repert. Spec. Nov. Regni Veg. 45: 6 (1938).

This name is a synonym.

Homotypic Names:
Accepted Name:	Helictochloa planiculmis (Schrad.) Romero Zarco, Candollea 66: 102 (2011).
Family:	Poaceae
* Avena planiculmis Schrad., Fl. Germ. 1: 381 (1806). Avena latifolia Host, Icon. Descr. Gram. Austriac. 4: 19 (1809), nom. superfl. Gaudinia planiculmis (Schrad.) P.Beauv., Ess. Agrostogr.: 95 (1812). Avenastrum planiculme (Schrad.) Opiz, Seznam: 20 (1852). Heuffelia planiculmis (Schrad.) Schur, Enum. Pl. Transsilv.: 762 (1866). Avena pratensis subsp. planiculmis (Schrad.) St.-Yves, Candollea 4: 451 (1931). Avenochloa planiculmis (Schrad.) Holub, Acta Horti Bot. Prag. 1962: 84 (1962). Avenula planiculmis (Schrad.) W.Sauer & Chmel., Mitt. Bot. Staatssamml. M�nchen 12: 533 (1976). Helictochloa planiculmis (Schrad.) Romero Zarco, Candollea 66: 102 (2011). * Basionym/Replaced Synonym
Original Compiler:	W.D.Clayton, R.Govaerts, K.T.Harman, H.Williamson & M.Vorontsova