1	"Leaves cauline on +- trailing stem, lobed only at blade tip, lobes +- linear"	"Saxifraga cespitosa"
1	"Leaves mostly basal, cauline smaller and fewer, lobed from blade base to tip, lobes not linear"	2
2	"Leaf blade generally 5--8 mm, divided > 1/2 to base; leaf lobes 3--5, elliptic to round, not toothed"	"Saxifraga hyperborea"
2	"Leaf blade generally > 15 mm, divided < 1/4 to base; leaf lobes >> 5, triangular to semicircular, toothed"	"Saxifraga mertensiana"