1	At least proximal stem nodes and petiole bases with brown, crisped, villous hairs (mostly eglandular).
+	Stem nodes with straight, glandular hairs, glands brown or black.		(4)
2	Leaves often glaucous, with prominent, submarginal vein running from proximal to distal ends; basal or proximal leaves glandular pilose abaxially, ± glabrous adaxially		Key 5
+	Leaves not glaucous, with veins set in from, and none obviously associated with, margin; leaf pubescence variable.		(3)
3 (2)	Pedicels with short, glandular hairs, glands brown or black, occasionally present together with brown, long, crisped, villous hairs, or glabrous		Key 6
+	Pedicels with brown, long, crisped, villous hairs		Key 3
4 (1)	Rosette leaves producing axillary, filiform stolons		Key 1
+	Rosette leaves, if any, not producing axillary stolons.		(5)
5 (4)	Leaves often shiny, leathery; leaf buds produced in axils of cauline leaves, sometimes developing into short, sterile shoots; petals white or yellow		Key 2
+	Leaves not shiny, carnose; long, sterile shoots sometimes arising from axils of basal leaves; petals yellow.		(6)
6 (5)	Plants with branched stem, forming mats or cushions of leafy shoots, or simple with a single stem, but in either case without a well-defined, basal leaf rosette; inflorescence 1(or 2-5)-flowered		Key 7
+	Plants forming well-defined basal leaf rosettes at anthesis; inflorescence usually several flowered		Key 4