1、 Shape difference

Begonia is a deciduous shrub, usually about 1-2 meters high, rarely up to 3 meters. The small branches are green, cylindrical and often arched

Rosa flavescens is an upright shrub, which is taller than the former, up to 2-3 meters, with thick branches and dense branches

2、 Blade difference

The leaves of Di Tang flower are alternate, triangular, ovate or oval, with long and acuminate top, round or micro heart-shaped base, sharp serrations on the edge, green on both sides, sparse or glabrous on the top and pilose below

The leaves of Rosa Rosa are wide ovate or nearly circular, rarely oval, the apex is round and blunt, the base is nearly circular or wide wedge-shaped, the edge has round and blunt serrations, the upper part is hairless, the lower part is hairy, and will gradually fall off in the later stage

3、 The difference between flowers

The flower of Di Tang is solitary at the top of the lateral branches, the pedicel is glabrous, the sepals are oval, the apex is acuminate, pointed, and the yellow petals are wide oval

Rosa flavescens has monochromatic leaf axils, sepals in lanceolate shape and yellow petals in wide obovate shape