Baldwin - s.n. - United States
Canby - s.n. - United States
Chapman - s.n. - United States
Curtiss - 2747 - United States
Durand - s.n. - United States
Read - s.n. - United States
Sagittaria subulata
Tatnall - s.n. - United States
Zantzinger - s.n. - United States