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重楼排草(Lysi-machia paridiformis) 又名四片瓦,报春花科植物。为多年生宿根野生草本花卉。重楼排草全株无毛,茎直立,高15—35厘米,茎端叶4枚,轮生,少有6枚的,椭圆形至狭长椭圆形。花多数,集生茎顶端,花萼深5裂,花冠黄色。在北京地区室内4月上旬开花,室外5月中旬开花。年生长周期240天左右。
Lysi-machia paridiformis, also known as four-watt, primulaceae. Perennial perennial wild herbs flowers. Reproduced floor grass glabrous whole plant, stems erect, high 15-35 cm, stem 4 leaves, whorled, few 6, oval to narrow oblong. Flowers most, set stem top, calyx deep 5 crack, corolla yellow. Indoor flowers in Beijing in early April, outdoor mid-May flowering. The annual growth cycle of 240 days.