Beitou Tankan introduced in 1789 by the Chaozhou, Guangdong Province in mainland China to Taiwan, the main in Yangmingshan (old name Grassy) Eighteen of the fountain of living water, Beitou Orange Village Datun other places where a large number of cultivation, also called "Grassy Kom " , also known as Beitou Tankan is the region in addition to Hokutolite, another to place names in the name of the specialty, as tangerines and oranges natural hybrids.
Since Grassy located in Datun Volcano Group, various types of soil rich in minerals and trace elements, and the temperature difference between day and night, farmers choose leeward mountain, sophisticated planting citrus cultivation techniques, in this unique natural environment and farmers' hard work pay, Under conditions with a double, making it a high sweetness, flavor concentration, Grassy distinctive orange (Beitou Tankan), maturity and the value of the Chinese New Year, it is also known in orange.
From 1951 to seven decades, was an important crop Beitou economic prosperity, then, although not falling, but in recent years, Beitou District Office and the local farmers' associations to revitalize the unique sightseeing agriculture, then in each year month hold elective "Beitou Tankan Festival", hope in the concerted efforts to restore the past glory of Grassy citrus.
2014 Li-Nong Elementary School,Taipei,Taiwan,R.O.C.- Home of Wee Oranges