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本省气候夏季炎热冬季寒冷,这对于某些引进的多年生牧草生长不利,存在着原产温带的越夏率低,而原产热带的则不能越冬等问题,从而影响产量和实际应用。我们在草类资源的研究中,发现扁穗牛鞭草在南京地区有夏秋生长旺盛,又能越冬的优点,可在本省沿江及以南地区栽培应用。 扁穗牛鞭草(Hemarthria compressa)为禾本科牛鞭草属植物,多年生。稀生时,茎秆横卧地面,茎节着地生根,密生时茎秆斜上,草层自然高度1米左右。在南京越冬苗于7月抽穗开花,在6～7月扦插的株木或刈割后的再生草,在当年8～10月也能抽穗开花,但均不见结实。
The climate of this province is hot and cold in summer, which is unfavorable to the growth of some introduced perennial grasses. There are some problems such as overwintering in native temperate zone and overwintering in native tropical zone, which affects yield and practical application. In the study of grassland resources, we found that Hemarthria Compressis has the advantages of strong summer and autumn growth in Nanjing, but also can win the winter. It can be applied in the areas along the Yangtze River and south of the province. Hemarthria compressa is a genus of verbenaceae, perennial. When rare, the stem crouches on the ground, stems and roots to the root, dense stems oblique, the natural height of about 1 m. In winter, the seedling of Zhejiang Province is heading and blooming in July. The cuttings of cuttings or mowing grass in June-July can also be heading and flowering from August to October of the same year, but no seedlings are seen.