Alocasia macrorrhizos. Colocasia macrorrhiza, Caladium macrorrhizon  Cunjevoi, Spoon lily Family: Araceae    
DO NOT INJEST DUE TO TOXICITY ACTIONS
GROUP: Analgesics
INDICATIONS- Cunjevoi is extremely poisonous. The juice of the plant is very corrosive to mucous membranes.
External application only- with care.
1. The juice can be used as an external stimulant and rubefacient.[1] Also used in muscular rheumatism, and in the treament of sores, burns and ulcers.
2. The leaf juice is reputed to be useful to the relief of sunburn.[1]
PREPARATIONS- External application only.
Juice.
Note- Owing to its acrid nature- extreme care should be exercised in keeping it away from the eyes and other sensitive tissues.

ORIGIN: Australia
DESCRIPTION
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Constituents
Research

Cytotoxic constituents of Alocasia macrorrhiza
Marwa Elsbaey, Kadria F M Ahmed, Mahmoud F Elsebai, Ahmed Zaghloul, Mohamed M A Amer, Mohamed-Farid I Lahloub
Abstract
An indole alkaloid, 2-(5-hydroxy-1H-indol-3-yl)-2-oxo-acetic acid (1) isolated for the first time from nature, in addition to the nine known compounds 5-hydroxy-1H-indole-3-carboxylic acid methyl ester (2), alocasin B (3), hyrtiosin B (4), a-monopalmitin (5), 1-O-ß-D-glucopyranosyl-(2S, 3R, 4E, 8Z)-2-[(2(R)-hydroctadecanoyl) amido]-4,8-octadecadiene-1,3-diol (6), 3-epi-betulinic acid (7), 3-epi-ursolic acid (8), ß-sitosterol (9) and ß-sitosterol 3-O-ß-D-glucoside (10) were isolated from the rhizomes of Alocasia macrorrhiza (Araceae). Their structures were elucidated by 1D and 2D NMR spectroscopic data. Of these compounds, 6 exhibited the strongest cytotoxicity against the four tested human cancer cell lines (IC50 of about 10 µM against Hep-2 larynx cancer cells).
Z Naturforsch C J Biosci . 2017 Jan 1;72(1-2):21-25. doi: 10.1515/znc-2015-0157. PMID: 27497869 pubmed.ncbi.nlm.nih.gov Indole Alkaloids from Alocasia macrorrhiza
Ling-Hua Zhu 1, Cheng Chen, Hui Wang, Wen-Cai Ye, Guang-Xiong Zhou
Abstract
Five new indole alkaloids, alocasins A-E (3-7), together with known hyrtiosin B (1) and hyrtiosulawesin (2) were isolated from Alocasia macrorrhiza (L.) SCHOTT; their structures were elucidated on the basis of spectroscopic data. Compounds 1-7 were in vitro tested for cytostatic activity on human throat cancer (Hep-2), human hepatocarcinoma (Hep-G2), and human nasopharyngeal carcinoma epithelial (CNE) cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method; compounds 2, 3, 6 and 7 showed mild antiproliferative activity against Hep-2 and Hep-G2 whereas compounds 2 and 4 showed gentle antiproliferative activity against CNE.
Chem Pharm Bull (Tokyo) . 2012;60(5):670-3. doi: 10.1248/cpb.60.670. PMID: 22689406 pubmed.ncbi.nlm.nih.gov