Research topic: dahlia

dahlia [for Anders Dahl, 1751-89, Swedish botanist and pupil of Linnaeus ], any plant of the genus Dahlia of the family Asteraceae ( aster family), tuberous-rooted perennials native to Mexico and Guatemala and widely cultivated in gardens. Most of the several thousand horticultural varieties have been developed from the single species ( D. pinnata ) of garden dahlia introduced into cultivation in England c.1800, but other species and hybrids, e.g., the cactus dahlia ( D. juarezii ) are also grown. Dahlias are stout and rather woody plants, some species reaching the stature of small... Read more