1	Plants without conspicuous main stem.		(2)
+	Plants with conspicuous erect stem.		(6)
2 (1)	Plants stoloniferous; corolla 4-6 mm.		(3)
+	Plants not stoloniferous; corolla 6-10 mm.		(4)
3 (2)	Root crown enclosed by fibrous remnants of old leaves; leaves entire		1 Lagotis brachystachya
+	Root crown without remnants of old leaves; leaves pinnately parted		2 Lagotis pharica
4 (2)	Flowering stems not scapose; spikes elongated; rhizomes short		5 Lagotis decumbens
+	Flowering stems scapose; spikes ovoid; rhizomes long.		(5)
5 (4)	Petioles and leaves abaxially purple-red; bracts to 1.5 cm, subleathery		3 Lagotis praecox
+	Petioles and leaves abaxially not purple-red; bracts ca. 0.8 cm, papery		4 Lagotis ramalana
6 (1)	Corolla tube straight; style short.		(7)
+	Corolla tube slightly curved forward; style long.		(12)
7 (6)	Leaf blade thin, papery; anther subsagittate.		(8)
+	Leaf blade thick, somewhat fleshy or subleathery; anther reniform.		(9)
8 (7)	Stem leaves sessile, smaller than basal leaves; calyx at anthesis slightly longer than bract		10 Lagotis yunnanensis
+	Stem leaves short petiolate, as large as or slightly smaller than basal leaves; calyx at anthesis shorter than bract		11 Lagotis wardii
9 (7)	Corolla tube longer than limb; inflorescences elongated to more than 1/2 stem length		6 Lagotis crassifolia
+	Corolla tube as long as or slightly shorter than limb; inflorescences mostly capitate, less than 1/2 stem length.		(10)
10 (9)	Root crown often with remnants of old petioles; bracts suborbicular		7 Lagotis brevituba
+	Root crown without remnants of old petioles; bracts ovate, obovate, or ovate-lanceolate.		(11)
11 (10)	Plants ca. 5 cm tall; stems usually erect		8 Lagotis humilis
+	Plants more than 6 cm tall; stems prostrate, diffuse or obliquely ascending		9 Lagotis alutacea
12 (6)	Filaments adnate to base of upper corolla lip margin; style exserted.		(13)
+	Filaments inserted at corolla sinuses; style included or reaching mouth of corolla tube (slightly exserted in L. kongboensis).		(14)
13 (12)	Root crown without remnants of old petioles; calyx ca. 2 X as long as bract above middle of inflorescence		12 Lagotis clarkei
+	Root crown usually with remnants of old petioles; calyx shorter than bract		13 Lagotis integrifolia
14 (12)	Inflorescences subcapitate; bracts linear-oblanceolate to spatulate		14 Lagotis angustibracteata
+	Inflorescences elongated; bracts ovate, obovate, or ovate-lanceolate.		(15)
15 (14)	Bract margin entire; basal leaf blade 4-11 cm, margin entire or sparsely and irregularly serrulate		17 Lagotis integra
+	Bract margin serrate; basal leaf blade 2-4.5 cm, margin coarsely or obtusely toothed.		(16)
16 (15)	Corolla tube 2-3 X as long as limb		15 Lagotis macrosiphon
+	Corolla tube slightly longer than limb		16 Lagotis kongboensis