Garrett Crow 7466 Det. by: G. Crow, X 1989 Phenology: 23 October 1989 10:18N 84:13W 820 m ALAJUELA, ALAJUELA Cordillera Central.
Garrett Crow 7634 Det. by: G. Crow, VIII 1990 Phenology: 27 August 1990 11:01N 85:32W 260 m GUANACASTE, LA CRUZ De Bahía Salinas a Santa Cecilia. Locally abundant. Submersed. Plants vegetative.