Michael Grayum 8258 Det. by: V. Rudd 1990 Phenology: FL 10 April 1987 09:38N 82:43W 20 m LIMON, TALAMANCA R.N.V.S. Gandoca-Manzanillo Faja Costeña de Limón. Slender, virgate treelets to ca. 4 m tall, colonial in low, open, wet, grassy site; probably natural here. Fls. pale yellow, the banner with prominent reddish venation.
Garrett Crow 7372 Det. by: G. Crow, X 1989 Phenology: 15 October 1989 10:17N 85:20W 13 m GUANACASTE, NICOYA Valle del Tempisque. Abundant; emergent, with some young growth at edge of colony floating on water surface. Adventitions roots extremely abundant.
Daniel Hernández 8947 Det. by: L. Poveda, 1989 Phenology: FL 10 September 1989 10:20N 85:20W 1-1 m GUANACASTE, BAGACES R.F.S. Dr. Rafael L. Rodrígu Valle del Tempisque. Planta creciendo en parches en laguna central, airenquima en tallo hasta nivel de agua. Flores amarillas.
Garrett Crow 7439 Det. by: G. Crow, X 1989 Phenology: 21 October 1989 10:20N 85:20W 2 m GUANACASTE, BAGACES R.F.S. Dr. Rafael L. Rodrígu Valle del Tempisque. Emergent. Submersed portion of stem matted with adventitions roots. Locally in patches.
Alex. Rodríguez 494 Det. by: N. Zamora, I 1995 Phenology: LR 30 January 1995 10:36N 83:47W 400 m LIMON, POCOCI Llanura de Santa Clara. Planta de 1 m. Común en potreros y orilla de caminos. Flores amarillas, abundantes. Frutos verdes, abundantes. cáliz rojo.
Kattia Martínez 217 Det. by: N. Zamora, VII 1995 Phenology: LR 29 November 1993 10:54N 84:46W 40 m ALAJUELA, LOS CHILES R.N.V.S. Caño Negro Llanura de Guatuso. Hierba creciendo en pantano. Flores amarillas. Frutos negros y verdes, escasos.
Garrett Crow 7349 Det. by: G. Crow, X 1989 Phenology: FL 14 October 1989 10:57N 85:38W 300 m GUANACASTE, LA CRUZ De Bahía Salinas a Santa Cecilia. Emergent, abundant adventitious roots on submerge portion of stem. Flowers yellow Common.
Garrett Crow 7629 Det. by: G. Crow, VIII 1990 Phenology: 27 August 1990 11:01N 85:33W 260 m GUANACASTE, LA CRUZ De Bahía Salinas a Santa Cecilia. Frequent, emergent. Submersed portion of stem with abundant adventitious roots.
Elba López 94 Det. by: Q. Jiménez, VI 1996 Phenology: LR 6 February 1996 11:02N 85:32W 270 m GUANACASTE, LA CRUZ P.N. Guanacaste De Bahía Salinas a Santa Cecilia. Planta, creciendo dentro de la Laguna. Flores amarillas. Frutos pardos.