大蓟又名大刺儿茶,为菊科蓟属植物。大蓟(Cirsium japonicum DC)以根或全草入药,功能涼血、止血、散瘀消肿,对衄血、咯血、吐血、尿血、功能性子宫出血、产后出血、肝炎、肾炎、乳腺炎等,均有疗效。大蓟野生于山坡、路边等处,我国南北各省均有分布,适应性强,对土壤要求不严,在肥沃、深厚、排水良好的土壤上生长良好,可用种子繁殖或分根繁殖。种子繁殖,在7—8月份种子成熟时就要采收,种子过熟则易飞散,难以收到种子.种子采收后当年九月份或第二年三、四月份播种,土地经翻耕后平整作畦,畦宽4尺,然后条播,条播行距1尺,覆土1寸左右,苗齐后间苗,株距8寸左右,头年9月份播种的植株,第二年就能开花。 Big thistle, also known as big thorns tea, as Compositae thistle. Cirsium japonicum DC is rooted or whole-body medicated and has the functions of cooling blood, stopping bleeding, removing blood stasis and removing swelling. It has the effects on hematemesis, hemoptysis, hematemesis, hematuria, dysfunctional uterine bleeding, postpartum hemorrhage, hepatitis, nephritis and mastitis , Are effective. Wild thistle wild on the slopes, roadsides and other places, the provinces of our country are distributed in north and south, adaptability, lax requirements of the soil, in the fertile, deep, well drained soil growth can be used seed breeding or root breeding. Seeds are planted and harvested when the seeds mature in July-August, seeds are too easy to scatter when they are over-cooked, and it is difficult to receive the seeds Seeds are planted in September or April and April of the following year after they are harvested. Flat for 畦, 畦 width 4 feet, and then sowing, spacing of 1 foot spacing, soil cover about 1 inch, Miao Qi after the seedlings, spacing of about 8 inches, sowing the first year of September plants, the second year will flowering.