
 Hydrocotyle
 Botanical: Hydrocotyle Asiatica (LINN.) 
Family: N.O. Umbelliferae
  
---Synonyms---Indian Pennywort. Marsh Penny. White Rot. Thick-leaved Pennywort. 
---Part Used---Leaves. 
---Habitat---Asia and Africa.   
 ---Description---A small umbelliferous plant growing in Southern Africa and India, indigenous to the Southern United States. The special characteristics of the leaflets are petiolate, reniform, crenate, seven nerved and nearly glabrous.  ---Constituents---An oily volatile liquid called vellarin (which has a strong smell reminiscent of the plant, and a bitter, pungent, persistent taste) and tannic acid.  
---Medicinal Action and Uses---A valuable medicine for its diuretic properties; has long been used in India as an aperient or alterative tonic, useful in fever and bowel complaints and a noted remedy for leprosy, rheumatism and ichthyosis; employed as a poultice for syphilitic ulcers. In small doses it acts as a stimulant, in large doses as a narcotic, causing stupor and headache and with some people vertigo and coma.  
---Other Species--- 
The native species is not unlike the Indian variety, but there is a slight difference in the leaves.  
European hydrocotyle vulgaris (syn. Common Pennywort). Leaves orbicular and peltate. The plant appears to have no noxious qualities; it grows freely in boggy places on the edges of lakes and rivers.  
The plant has come into disfavour because it is said to cause footrot in sheep.