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Family: FABACEAE 

 Pachyrhizus tuberosus
 

Photo from Singapore ZOO!

  
Author:  Curtius Polycarp Joachim Sprengel 1827
Family:  Fabaceae
Habitat:  West Indies, Western South America
Soil:  Mix
Water:  Medium
Sun:  Medium
Thickness:  30 centimetres
Height:  6 meters
Flower:  White - Deep Violet
Reproduction:  Seeds/Cuttings/Roots
Pop names:  Yam Bean, Potato Bean, Jicama
Synonyms:  Dolichous tuberosus, Lamarck 1786. Cacara tuberosa Britton 1924. Stizolobium tuberosum Spreng1826

30 centimetre caudex.

   This member of the Fabaceae family was given this name by Curtius Polycarp Joachim Sprengel in 1827. It is found in Western Indies and Western South America. It grows in well drained soil with some water and some sun. The vines will climb for six meters, the eatable caudex grow up to 30 centimetres in diameter. The flowers are white to yellow.

 The plant is grown as a crop in both Americas and Asia. The leaves and caudex used for food, the seed for poisons fish by fishermen.

Photo by World Agroforestry Center

Long tuber. Photo from The Department of Ecology  Copenhagen University.