1	"Seeds with about 100 or more depressions on each face, seeds in 1 (or 2 irregular) rows; fruit more than 14 mm long"	"Nasturtium microphyllum"
1	"Seeds with fewer than 50 depressions on each face, seeds in 2 distinct rows per locule; fruit less than 19 mm long"	"Nasturtium officinale"