Toxicity in Humans by Ingestion of Colocasia esculenta (Elephant Ear). Audrey Medina Barry Sandall Loucia Jose Biology 445 May 04, 2007. What is Colocasia esculenta ?. Herbaceous, flowering plant of the family Araceae. Commonly referred to as ‘Elephant Ear’
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May 04, 2007
because of its large leaves
resembling elephant ears.
famously in the Hawaiian
dish known as poi.
The entire plant is toxic!
Leaf, stem, and root.
SO WATCH OUT!!!
If Ingested Raw:
Calcium oxalate crystals-Raphides
2 carboxyl groups
free-radicals in body.
blood and circulation system.
free oxalic radicals.
should be eaten with milk or
other foods rich in calcium.
and tissue damage can also result
from deposits of calcium oxalate,
formed by oxalic acid binding
calcium in the body.
Beaulieu, David. 2007. Elephant Ear Plants. About: Landscaping.
Kuhlken, R. 2002. Intensive Agricultural Landscapes of Oceania. Journal of Cultural Geography. 19: 161-195.
Plant Profile: Colocasia esculenta . USDA Natural Resources Conservation Services. 2007. <http://plants.usda.gov/java/profile?symbol=COES>
Tagwireyi, D. and Ball D.E. 2001. The management of Elephant’s Ear
poisoning. Human & Experimental Toxicology. 20: 189-192.
Wagner, W. L., D. R. Herbst, and S. H. Sohmer. 1999. Manual of the Flowering Plants of Hawai‘i. Revised edition. Vol. 2. University of Hawaii Press/Bishop Museum Press. p. 1357.