| Family | Begoniaceae |
| Scientific name | Begonia grandis Dryander |
| Synonyms | Begonia discolor R. Brown; Begonia erubescens H. Léveillé; Begonia evansiana C. Andrews; Begonia grandis Dryander subsp. evansiana (C. Andrews) Irmscher; Begonia grandis Dryander subsp. evansiana (C. Andrews) Irmscher var. alba hort.; Diploclinium evansianum (Andrews) Lindley; Knesebekia discolor Klotzsch |
| Common name | (Japanese common name) shu-kaido (シュウカイドウ, 秋海棠 [meaning: Autumn kaido (kaido = Malus halliana)]) |
| (English common name) Evans begonia, Hardy begonia | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) [native] China | |
| Habitat | Forest, forest edge |
| Chromosomal number | 2n=26 |
| Description | Plants 40-80cm tall. Flowers pink or white, flowering in August to September. Perennial plants. |
| Reference | Begonia grandis Dryander |
| Begonia grandis Dryand. subsp. evansiana (Andrews) Irmsch. | |
| Methods and compositions for controlling insects (US Patent 6372211/2002) | |
| Note | Naturalized plants (introduced as a garden plant from China in 1620 or later). |
| September 2007 at lowland forest |
September 2007 at lowland forest |
September 2007 at lowland forest |