Key for Lepidagathis Willd.

1Herbs 30-50 cm tall; leaves petiolate, petiole 5-20 mm long; leaf blade 1.5-8 x 0.8-3 cm
1'Herbs to 25(-30) cm tall; leaves sessile or shortly petiolate, if petiolate, then petiole to 5 mm long; blade 0.7-3.5 x 0.4-0.9 cm
2Herbs 15-25(-30) cm tall; leaf blades with 4 or more paris of secondary veins
2'Herbs 5-15 cm tall; leaf blades with 3 pairs of secondary veins
3Cymes usually 3-flowered; corollas 5.5-6.5 mm long; calyx lobes mucronulate or aristate with 0.5 mm long awn at apex
3'Cymes usually 5-flowered; corolla 4.5 mm long; calyx lobes all ending in 0.8 mm long awns
4Leaf blade oblong to elliptic; posterior calyx lobe elliptic, 4-5 x 1-1.5 mm, mucronulate at apex; corolla white or lavender with violet lines on lower lip, 6-6.5 mm long, tube 2-2.5 mm long; capsule 2.5-3 mm long
4'Leaf blade lanceolate; posterior calyx lobe obovate, 6 x 2.1 mm, aristate at apex with a 0.5 mm long awn; corolla white with brown streaks on lower lip, 5.5-6 mm long, tube 3.5 mm long; capsule 4 mm long
5Leaf blade smooth along margin
5'Leaf blade scabrous along margin