A floating, fibrous-rooted herb with small rootstock. Leaves broadly ovate, membranous, indistinctly nerved, deeply cordate at the base, lobes and blade obtuse or rounded. Flowers white. Sepals appressed in fruit. Stamens 6-15. Achenes plump or compressed, with shallowly or deeply crested rarely smooth wings.

Type: Described from Colombia, Humboldt..

Distribution: Tropical America, tropical and subtropical Africa and Asia.

Lower Taxon

• Sagittaria guayanensis ssp. lappula (D. Don) Bogin

Related Synonym(s):

• Lophiocarpus guayanensis (Kunth) M. Micheli = Sagittaria guayanensis ssp. lappula (D. Don) Bogin
• Lophiocarpus lappula (D. Don) Miq. = Sagittaria guayanensis ssp. lappula (D. Don) Bogin
• Lophotocarpus guayanensis var. lappula (D. Don) Buchen. = Sagittaria guayanensis ssp. lappula (D. Don) Bogin
• Sagittaria blumei Kunth = Sagittaria guayanensis ssp. lappula (D. Don) Bogin
• Sagittaria cordifolia Roxb. = Sagittaria guayanensis ssp. lappula (D. Don) Bogin
• Sagittaria lappula D. Don = Sagittaria guayanensis ssp. lappula (D. Don) Bogin
• Sagittaria obtusissima Hassk. = Sagittaria guayanensis ssp. lappula (D. Don) Bogin