Essential oil yield and compositions of endemic mountain tea (Sideritis libanotica Labill. ssp. linearis (Bentham) Borm. and Sideritis bilgerana P.H. Davis) cultivated in Konya ecological conditions of Turkey

Abstract

Sideritis L. belongs to the family of Lamiaceae (Labiatae) which is one of the most common and diverse plants of the world. Over 150 species of the genus Sideritis are mainly found in the Mediterranean area. The aer al parts of plants from the genus S der t s, generally known as 'mounta n tea', are w dely used as a popular folk med c ne n Spa n, Greece and Turkey. The genus S der t s s represented n the Turk sh flora by 46 spec es, 31 of wh ch are endem c (Dem rtaş et al, 2011), nclud ng S der t s l banot ca Lab ll. ssp. l near s (Bentham) Borm. S der t s spec es are used n the treatment of gastro ntest nal a lments and common colds as well as a herbal tea n Turk sh folk med c ne (Baytop, 1999; Yes lada et al., 1995). Several studies have been conducted on various biological activities of Sideritis s p e c i e s s u c h a s a n t m c r o b a l , a n t o x d a n t , ant nflammatory, ant spasmod c, ant ulcerat ve, nervous system st mulant ant convulsant, carm nat ve, analges c and sedat ve effects.