ISNARDIA L. Sp. Pl. 120. 1753.
Key to the Species.
Petals usually none ; capsules 2.5-4 mm. long.
Pubescent; capsules 2.5-3 mm. long. 1. I. spathulata.
Glabrous ; capsules 3-4 mm. long. 2. 1. pa/Writ.
Petals usually present; capsules 6-7 mm. long. 3. 1. natans.