From the book Fruits of Warm Climates
by Julia F. Morton

Kwai Muk
possibly A. lingnanensis Merr.

Excerpt from "Jackfruit, Artocarpus heterophyllus Lam."

The Kwai Muk, possibly A. lingnanensis Merr., was introduced into Florida as A. hypargyraea Hance, or A. hypargyraeus Hance ex Benth. The tree is a slow-growing, slender, erect ornamental 20 to 50 ft (6-15 m) tall, with much milky latex and evergreen leaves 2 to 5 in (5-12.5 cm) long. Tiny male and female flowers are yellowish and borne on the same tree, the female in globular heads to 3/8 in (1 cm) long.

The fruits are more or less oblate and irregular, 1 to 2 in (2.5-5 cm) wide, with velvety, brownish, thin, tender skin and replete with latex when unripe. When ripe, the pulp is orange-red or red, soft, of agreeable subacid to acid flavor and may be seedless or contain 1 to 7 small, pale seeds. The pulp is edible raw; can be preserved in sirup or dried. Ripens from August to October in Florida.

The tree is native from Kwangtung, China, to Hong Kong, and has been introduced sparingly abroad. It was planted experimentally in Florida in 1927 and was thriving in Puerto Rico in 1929. It grows at an altitude of 500 ft (152 m) in China. Young trees are injured by brief drops in temperature to 28° to 30°F (-2.22°-1.11°C). Mature trees have endured 25° to 26°F (-3.89°-3.33°C) in Homestead, Florida; have been killed by 20°F (-6.67°C) in central Florida.

Last updated: 12/18/114 by ch

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Morton, J. "Jackfruit." Fruits of warm climates, p. 58-64. 1987. Web. 18 Dec. 2014.

Published 13 Jan. 2017 LR
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