Rhodocodon monophyllus

Knirsch, Walter, Martínez-Azorín, Mario, Pfosser, Martin & Wetschnig, Wolfgang, 2015, The reinstatement and rediagnosis of the madagascan genus Rhodocodon (Asparagaceae, Scilloideae), with validation and remarks on H. Perrier’s taxa, Phytotaxa 195 (2), pp. 101-134 : 132

1. Bulb scales distichously arranged; leaf solitary, blade lanceolate, petiole long sheathing the stem above the ground, with distinct red spots .............................................................................................................................................................. 11. R. monophyllus

− Bulb scales spirally arranged; leaves 2 or more, with a different shape .......................................................................................... 2

2. Leaves up to 4 mm wide ................................................................................................................................................................... 3

− Leaves 5 ‒ 50 mm wide ...................................................................................................................................................................... 4