Whorled simple leaves with reticulate venation are present in
China Rose
Alstonia
Calotropis
Neem
In Alstonia, the simple leaves are elliptical, ovate, linear or lanceolate and wedge-shaped at the base. The leaf blade is dorsiventral, medium-sized to large and disposed oppositely or in a whorl and with entire margin. The leaf venation is pinnate, with numerous veins ending in a marginal vein.