Sterculia nobilis (Salisb.) Sm.
Sterculia monosperma (Chinese: 蘋婆 (Ping Po); Thai: เกาลัดไทย), also known as Chinese chestnut, Thai chestnut and seven sisters' fruit, and phoenix eye fruit, is a deciduous tropical nut-bearing tree of genus Sterculia.
Its origin is Southern China (Guangdong, Guangxi and Yunnan) and Taiwan, but it is now a common cultivated tree in Northern Thailand, Northern Vietnam, mountainous areas of Malaysia and Indonesia, as well as Northern Laos and Shan State in Burma.
In China these nuts are one of the traditional foods of the Qixi Festival, the 'night of the seven', also known as the 'anniversary of the seventh sister' (七姐誕). Qixi is celebrated on the seventh day of the seventh lunar month which falls on 20 Aug 2015 and on 9 Aug 2016 next year.
The pods containing the nuts have a striking red color when ripe and the nuts are much darker —their husk or pericarpus is almost black— and smaller than the common chestnuts of genus Castanea. The pellicle is brown and smooth and the fruit is yellowish in color.
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- "Sterculia monosperma". Flora of China. Retrieved 27 July 2015.
- Top Tropicals
- "蘋婆 Ping-Pong". Chiayi Agricultural Experiment Station, Taiwan Agricultural Research Institute. Taiwan Government. Archived from the original on 18 August 2015. Retrieved 27 July 2015.
- Flora of China
- Sterculia Monosperma tree