大丽花又名大理菊。菊科 ,大丽花属。多年生草本 ,具粗大纺锤状肉质块根。株高依品种不同 ,差异较大。叶对生 ;头状花序具长总梗 ,顶生。花期夏至秋。品种　 品种极多 ,常见的花型有 :单瓣型、托桂型、芍药型、装饰型、蟹爪型、球型、蜂窝型。大丽花原产黑西哥高原地区 ,因此既 Dahlia, also known as Dali Ju. Asteraceae, dahlia. Perennial herb, with coarse spindle-shaped fleshy roots. Variety of plants according to different, greater differences. Leaves opposite; head with long total stems, top students. Flowering summer solstice. A very large variety of varieties, common patterns are: single-valve type, care Gui type, peony type, decorative type, crab claw type, ball type, honeycomb type. Dahlias are native to the Black Altiplano, so both