The scientific name Chaemoaneles speciosa (Sveet) Nakai is alias wrinkled water melon. Xuan papaya, iron-footed pear, iron-stemmed begonia family Rosaceae papaya genus Chaenomeles geographical distribution originated in southwest China, has a long history of cultivation in China, and is now widely cultivated in the north and south of the country. Because the peduncle is extremely short. It seems to be born from the sticker, so the name sticking stem begonia: and its fruit shape is peculiar, looking like a pear in an upside-down position, so it is also known as "iron foot pear": also because it is compared with the fruit of the papaya sea industry, a papaya will be slightly wrinkled after ripening, so it is also called "wrinkled papaya".

Morphologically characterized by deciduous shrubs, up to 1 to 2 m tall. Branches are born from the branches, with branches. Twigs cylindrical. Unfolded, stout, purple-brown when tender, glabrous, dark brown when old. The leaves are ovate to oval, 3 to 8 cm long and 1.5 to 5 cm wide, sharply pointed at the apex, thinly rounded and blunt, wedge-shaped to broadly wedge-shaped at the base, sharp and finely toothed at the edges, and a shiny surface. Dark green, pale green, glabrous on both sides: petiole length 1 to -1.5 cm, glabrous. The flowers and leaves are placed together, and 2 to 6 sticky stem clusters are born on the biennial branches. Red or orange-red, diameter 3.5-~5 cm, flower stem thick and short nearly stemless, hairless: Zun Pei piece upright. Nearly semicircular. The apex is rounded and blunt, with full margins or wavy teeth, and yellow-brown eyelashes at the edges. Hairless on the outside, sparsely hairy on the inside, half of the length: flower hook 5, nearly round or inverted oval, with short claws, length 1→ 1.5 cm: brown 35 to 50, length 1 to 1.3 cm, ribbon red: synaptic below the middle of the flower column, hairless, stigma-like. The fruit is ovoid and round, yellow or yellow-green, with inconspicuous light spots. Aromatic, 4–9 cm long, 2 to 5 cm in diameter, reddish-brown flesh. Dry results in creases of the skin and short or nearly infarctional stems. The flowering period is In April and the fruit ripening period is In October.
Ecological habits like light, more hardy, resistant to barrenness, not flooded, not strict soil requirements, but prefer fertile, deep, good soil.
Garden use sticker stem begonia flower color red and yellow. The colors are diverse, with vermilion. Pink. Pink and white, etc., plus the pattern is smooth and clear. Very beautiful, is good for early spring flower viewing and autumn fruit smelling flower technique. It can be used for garden greening, solitary planting or with spring and forsythia bushes planting mud. It can also be used as a hedge material. Its branches are dark and curved like wire, which is in line with aesthetic taste. It is a good material for making traditional bonsai. When used as a Chinese medicinal material, it is referred to as papaya (non-fragrant papaya). It is one of the rare fruits unique to China and has high medicinal and edible value. Breeding and cultivation are mainly propagated by splitting, cuttings and strips. Sowing can obtain a large number of neat seedlings, but it is not easy to maintain the original variety characteristics. The division force is strong, and the mother plant can be divided in the early twilight. Divide into 2-3 branches per plant. Three years after cutting, the plant can be divided. Cuttings can be used with both hard and tender cuttings. Sticker terrier marine management is relatively simple,.
While strengthening water and fertilizer management, you cut the chair shape to a hemispherical shape. Because the flowering is dominated by branches, the long branches can be appropriately shortened before germination in spring. Eliwei sprouts new grooves and plucks growing branches in summer. Transplanting and flowering can be potted from September to October. First put in a cool and ventilated place for a period of time, after the winter, move into the 15C-20C greenhouse, often spray water on the branches, about 25 days can flower.