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The Lanna Eating Culture
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Acknowledgements
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Chiang Mai University Library in collaboration with Information Technology Service Center
 
 

Long beans


 
            Vigna Sinensis Savi ex Hassle.
 
            Leguminosae
 
            Cow pea, Black Eyed Pea, Yard-long bean.
 
            Thua sang, Thua yao, Thua saimu (Rangsan Chanta and Rattana Phromphichai, 1999, 2634-2635) Ba thua (Prathum Unsi, 2007, Interview; Siwan Chamrat, 2007, Interview; Prathan Nanchaisin, 2007, Interview)
 
            Chinese and Indian origin, annual, climber, slightly hairy. 3 compound leaves, acuminate, ovate. 2-3-spike flowers, butterfly-like petals, lavender, white-yellow. Pods 20-60 cm. long, hanging. Grows from February-November. Other similar varieties are Thua pi (pods shorter, white) and Thua paep (pods shorter and smaller, often grown for seeds). (Rangsan Chanta and Rattana Phromphichai, 1999, 2534-2635)
 
        
            Carbohydrates, firer, protein, phosphorous, iron, Vitamins A, B1, B2, C and Niacin. (Phak Phuen Ban A-han Phuen Mueang, 2003, p. 49) Lanna people generally grow this kind of pea. Young pods are used in kaeng phak cha-om with grilled fish, pork or buffalo meat (known as “Kaeng ba thua sai phak la”) or just the beans by themselves. They can also be used in khua dishes like Khua bathua and in papaya salad as well as dip in namphrik pla, namphrik ong, lap pla, lap mu, lap wua, lap khuai (minced meat salad with fish or pork/beef/buffalo meat. (Rangsan Chanta and Rattana Phromphichai, 1999, 2534-2635); Pratum Unsi, personal communication, June 26, 2007 ; (Siwan Chamrat, personal communication, June 18, 2007)
        
Pods are eaten fresh to relieve gas, aches and pains, thirst, to stimulate urination. Leaves relieve veneral diseases, gonorrhea. Roots boost appetite, treat abscessing boils (Rangsan Chanta and Rattana Phromphichai, 1999, 2635)
 
            All year round
 
            

Rangsan Chanta and Rattana Phromphichai. (1999). Thua Chang/Thua Yao. In Saranukrom Wattanatham Thai Phak Nuea. (Vol. 5, pp. 2634-2635). Bangkok: The Siam Commercial Bank Foundation for the Encyclopedia of Thai Culture. (in Thai).