Elatine hydropiper subsp. orthosperma (Düben) Fr., Novit. Fl. Suec. Mant.: 187. 1842
Elatine hydropiper subsp. orthosperma, Novit. Fl. Suec. Mant.: 187. 1842
is new combination for Elatine orthosperma in Bot. Not. 1: 88. 1839
Elatine hydropiper subsp. orthosperma, Novit. Fl. Suec. Mant.: 187. 1842