From above ground parts of Achillea collina L., proline, stachydrine,
betonicine, betaine and choline were isolated as the major nitrogen co
ntaining compounds. The TLC screening of 11 different species belongin
g to A. millefolium group showed qualitatively identical betaine patte
rns but quantitative differences were observed. Copyright (C) 1997 Els
evier Science Ltd.