Category:Blainvillea acmella

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Blainvillea acmella is an erect, roughly pubescent annual, up to 60 cm in height with ovate-

   lanceolate or rhomboid-ovate leaves and white flower-heads found 
   throughout India in fields, gardens and on roadsides. It is a noxious 
   weed capable of rapid proliferation through the numerous seeds it 
   produces. Clean cultivation  and frequent hoeing of fields ordinarily 
   check its spread (Banerjee & Singh, Bull Grain Technol , 1970, 8, 40).

     The aerial parts of the herb contain desacylgrazielic acid tiglate, 
   and the lactones, 9ß-hydroxyovatifolin-8-O-[2-methyl  butyrate]; 
   desacetyl-11ß, 13-dihydroovatifolin;  desacetyl-11ß, 13-dihydro-
   ovatifolin-8-O-tiglate; desacetyl-11ß, 13-dihydroovatifolin-8-one, and 
   desacetylovatifolin, besides the following eight acanthospermolides : 
   8ß -hydroxy-9ß-[2-methylbutyryloxy]-14-oxo-acanthospermolide; 8ß-
   hydroxy-14-oxo-11ß, 13-dihydroacanthospermolide; 8ß-acetoxy-14-oxo-11ß, 
   13-dihydroacanthospermolide; 8ß-tigloyloxy-14-oxo-11ß, 13-
   dihydroacanthospermolide;  8ß-[2-methylbutyryloxy]-14-oxo-11ß, 13-
   dihydroacanthospermolide; 8,14-dioxo-7,11-dehydro-11, 13-
   dihydroacanthospermolide; and 8ß-[2-methylbutyryloxy]- 9ß-hydroxy- 14-
   oxo- acanthospermolide. Presence of stigmasterol and a- and  ß- amyrin 
   is also reported in the herb (Adityachaudhury & Chowdhury, 
   Phytochemistry , 1972, 11 , 3544; Singh et al, ibid , 1985, 
   24 , 2023).

     The roots contain stigmasterol, sitosterol, ovatifolin, 
   rudbeckianone, 1-hydroxy-a-curcumine,  4a- cinnamoyloxy-2,3-
   dehydrocarotol, 4a-cinnamoyl-oxy carotol, and two thiopheneacetylenes 
   (Singh et al , loc. cit.).