Begonia paulensis A.DC.

Leaves peltate, shiny, webbed, mid-green above, with white, bristly hairs, pale green below, red hairs, veins prominent; stalk hairy, brownish-green; margin irregularly toothed. Flowers to 5cm wide, white with red hair.

Brazil

Source: Wright, P.; Goodwin, J.; Spencer, R. (1997). Begoniaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Cucurbitales
family       Begoniaceae
genus        Begonia L.