Cycas nathorstii , Family-Cycadaceae , Common name-Cycas මඩු , Origin-Endemic , Habit-Small tree , Ecology-Inland ,Comment-Trunk may be branched, more leaflets (140-170), closer, narrow (9-14 mm). Cycas nathorstii and Cycas zeylanica can be confused., Referance-A J Lindstrom & K J Hill.

Cycas zeylanica , Family-Cycadaceae , Common name-Maha madu මහ මඩු , Origin-Native , Habit-Small tree , Ecology-Costal ,Comment-Locally near extinct. Trunk unbranched, less leaflets (70-100), wider apart, broader (12-15 mm). Cycas nathorstii and Cycas zeylanica can be confused., Referance-A J Lindstrom & K J Hill.