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形态特征：多年生草本，茎直立，分枝或不分枝，高60-150厘米。叶互生，卵形至披针形，羽状浅裂或半裂，长3.5-5厘米，宽3-4厘米，边缘有缺刻或锯齿，叶下面被白色短柔毛。头状花序，大小不一，单生枝端或叶腋，或排列成伞房状，总苞多层，外层外面被柔毛。外围舌状花，雌性，颜色多种，中央管状花，两性，黄色。也有全舌状花。瘦果柱状，一般不发育。花期9-10月。
Flowering Control of Small-flowered Chrysanthemums (Dendranthema grandiflorum (Ramat.) Kitamura) with July Flowering Type by Night-break Lighting Treatment–Systematic Production for High Demand Time–
Chrysanthemums Flowering Control cultivars day-length
2009/7/13
For the purpose of systematic production in an open field, small-flowered chrysanthemums responding to day-length were selected from cultivars of the July-flowering type, and the possibility of shippi...