1.一枝黄花(Solidago decurrens)别名山马兰等,菊科一枝黄花属多年生草本(图1)。高120厘米,叶互生,茎下部叶卵圆形,有一长而两边有翅的叶柄,叶缘有疏锯齿;茎中部以上叶卵矩圆形,近全缘。头状花序黄色,在枝顶排成总状或总状圆锥花序,花期5～7月。可作蜜源植物。喜光照充足而凉爽的环境,耐寒耐旱,对土壤要求不严。繁殖以分株为主,也可播种。原产长 1. Solidago decurrens Alias ​​Shanmalan, Compositae Solidago perennial herb (Figure 1). Height 120 cm, leaves alternate, the lower part of the leaves oval-shaped, with a long wings on both sides of the petiole, leaf margin with sparse serrations; stem above the middle of the leaves round oval, nearly entire. Capitulum yellow, arranged in the top of the total or paniculate panicles, flowering from May to July. Honey plants can be used. Hi sufficient light and cool environment, cold and drought, lax requirements of the soil. Breeding to ramet-based, but also sowing. Origin long