Pakong alagdan is widely distributed in the Philippines. It is also  found throughout India, Ceylon, and Malay Peninsula and extends to the Malay islands, tropical asia, Polynesia, and Australia.


The caudex is stout, erect and densely covered with glossy brown scales. The stripes are erect 10 to 40 centimeters long. The fronds are 20 to 200 centimeters long and 10 to 40 centimeters wide. The pinnae are 5 to 20 centimeters long and 0.5 to 2 centimeters wide, and sessile. The sori are arranged in a long continous line close to the costae.


According to Casius the rhizomes are used in China as an anthelmintic. Burkill reports that the Malays eat them. They also poultice boils with them. Hooper found the rhizome among drugs from Chinese pharmacies in the Straits. It seems that the Chinese use it in urinary complaints.

source: Medicinal Plants of the Philippines 

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