Arnebia hispidissima ethanolic extract, after chromatography, yielded a number of shikonin derivatives, which were identified as arnebin-5, arnebin-6, teracryl shikonin, arnebinone and acetyl shikonin.
Key words: Arnebia hispidissima, anti-inflammatory activity, shikonin derivatives
Arnebia hispidissima is annual herb and roots are sold in market under the trade name 'Ratanjot'.
Anti-inflammatory effects of shikonin derivatives from Arnebia hispidissima (Lehm.
Jain AC, Mathur SK (1965) A chemical study of the pigments of Arnebia hispidissima.
Jain SC, Singh B, Jain R (1999) Arnebins and antimicrobial activity of Arnebia hispidissima (Lehm.
Other typical plants observed in this habitat are Gaillonia aucheri, Lycium shawi, Blepharis ciliaris, Arnebia hispidissima
, Crotalaria aegyptiaca, Indigofera intricata, Tribulus sp, Aizoon canariense, Euphorbia granulata, Glossonema varians, Schweinfurthia imbricata, Paronychia arabica, Polycarpaea repens, Boerhavia elegans and Stipagrostis plumosa.
also occurring in drier years, include: Arnebia hispidissima
, Herniaria hemistemon, Lotus halophilus and Oligomeris linifolia, followed by Hippocrepis areolata, Launaea capitata and Launaea mucronata.