Begonia paranaensis Brade

Stems to 1.5m tall. Leaves broadly ovate, to 30 cm long, lobed, dark green, velvety textured surface with short, scattered hairs and pronounced, thick light-green veins, basal lobes overlapping, lower surface pale green flushed red, veins also pronounced; margins toothed. Flowers white, small.

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.