| + | With clustered root-lvs. and opposite st.-lvs. and large, long-peduncled yellow heads: involucral bracts all equal, thin, in a single, rarely double series. Native to Eu., Asia, and N. Amer., about 10 species.—Tincture of the European A. montana is used in medicine. Grown mostly as alpines or in rockwork; some species also grow well in the common border. Prop. by division, and rarely by seeds. |