Roots fibrous. Stems to 1 m tall, grooved and hairy, thick at base. Leaves elliptical, surface with sunken veins, mid-green, slight lustre, hairy above and below; margins toothed. Flowers white.
Venezuela, Trinidad, Guyana
SELECTION OF CULTIVARS
SHRUB-LIKE BEGONIAS
Habit shrub-like with a bushy growth habit, stems often hairy and freely branching, new shoots developed from the base. The leaves are variable, sometimes glossy, hairy or felted; the flowers may also be hairy.
Source: (1997). Begoniaceae. In: . 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.
Begonia ulmifolia 'Anita Sharrad'
(b. ludwigii × b. 'Cachuma') Leaves broadly ovate, to 29 cm long, parted; surface dark green, splashed silver-white with a silver-white border; margin finely toothed. Flowers white. Raised by Merv. Sharrad, Australia.
Begonia ulmifolia 'Aussie Star'
(b. wollnyi × b. thiemei) Erect stems to 45 cm tall, brown to brownish-green, 3 cm at base. Leaves parted, surface smooth and glossy, dark green with silver splashes and spots; short, scattered hairs. Flowers light green in large clusters, borne on long stems. Raised by Jan Goodwin, Australia in 1985 and int. 1987.
Begonia ulmifolia 'Silver Comet'
(b. wollnyi × b. carrieae × ?) Growth to about 25 cm tall. Leaves lobed, surface distinctively blistered, hairy, finely splashed silver; blushed red below; margins toothed. Flowers white, on arching stems. Raised by Jan Goodwin, Australia in 1985, int. 1990.