Angel Wing Begonia Plants, first found in South America, make up a large portion of the Cane Begonia Group. All Cane Begonia Plants have long stems with “joints” on them. The leaves and flowers of Begonia Plants grow out of these joints. Angel Wing Begonia plants have large, “angel wing” shaped, dark green leaves, often with metallic silver specks. The underside of the Angel Wing Begonia plant leaf is usually a deep red. Angel Wing Begonias produce hanging clusters of delicate flowers in red, white, orange, or pink.
http://www.houseplant411.com/houseplant/angel-wing-begonia-how-to-grow-care
Give your angel begonia plenty of bright, indirect light. You'll get the best leaf color and more flowers this way. Repot in spring. Move your plant up to a pot only 1 size larger. Angel wing begonias have fibrous roots and grow best when slightly pot-bound. Tamp down the soil gently with your fingers so that it doesn't pack too tightly -- begonias like a little air around their roots.
http://www.guide-to-houseplants.com/angel-wing-begonia.html
Two begonia hybridizers, Irene Nuss and Belva Kusler created many of the first superbas to become popular, and Irene's hybrid B.'Irene Nuss' and Belva's B.'Sophie Cecile' are the two most widely circulated superbas of all time.
http://www.bradsbegoniaworld.com/types.htm
Angel Wing Begonias will grow well under shade cloth, lattice, or in early morning/late afternoon sun. They will burn if grown in direct mid-day sun. The flowers are edible, with a sweet tart taste. To propagate them, cut a two-leaf section of stalk 4 to 6 inches (10 to 15 cm) from the end using a sharp knife.
https://en.wikipedia.org/wiki/Angel_wing_begonia
This article needs attention from an expert in Plants. (February 2009) Begonia Angel Wing is a hybrid Begonia which resulted from a cross between Begonia aconitifolia and B. coccinea. The hybridization was made by California plant breeder Eva Kenworthy Gray in 1926.
https://en.wikipedia.org/wiki/Angel_wing_begonia
DRAGOON WING RED is a compact F1 hybrid begonia that features angelwing-like, shiny green leaves and large drooping scarlet flowers. It is a compact, bushy, fibrous-rooted plant that typically forms dense mounds to 15-18” tall and as wide of fleshy, semi-trailing stems.
http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b162
The rhizomatous types are popular all across the country and one in particular B.'Erythrophylla' was probably grown by your Grandmother, who called it a beef steak begonia because of it's large round leaves.
http://www.bradsbegoniaworld.com/types.htm
The Different Types of Begonias. Canes: Cane begonias have been popular plants for many years and were probably grown by your Grandmother who called them Angel Wing begonias. Many types have been created since then and those grown by your Grandmother are probably still in cultivation.
http://www.bradsbegoniaworld.com/types.htm
Angel wing begonia. From Wikipedia, the free encyclopedia. Begonia Angel Wing is a hybrid Begonia which resulted from a cross between Begonia aconitifolia and B. coccinea. The hybridization was made by California plant breeder Eva Kenworthy Gray in 1926.
https://en.wikipedia.org/wiki/Angel_wing_begonia
Frost tender perennial that is grown in St. Louis as an annual. It is noted for its tolerance to hot and humid summers. It is easily grown in average to moderately fertile, moist, well-drained soils in full sun to full shade. Generally appreciates some afternoon shade in the St. Louis area. Plants are best with consistent moisture throughout the growing season, but will tolerate some short periods of drought.
http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b162
how large do angel wing begonias get?
Angel Wing Begonias get 15 to 18” tall. Angel wing begonias get as large as 15 to 18 inches.