There are at least three other species cultivated in North India: M. macroura (syn: M. laevigata) with catkins longer than 5 cm, rest having catkins shorter than 5 cm with biserrate leaves having acuminate-caudate lobes in M. serrata, uniserrate leaves lobes not caudate in rest two, of which M. nigra has leaves pubescent all over the lower surface including veinlets and styles densely white hairy. M. alba has leaves pubescent only on the midrib and principal veins of lower surface, secondary and ultimate veinlets glabrous, styles glabrous.
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