Abstract
Knotgrass (Paspalum distichum L.) is known as a native, grass in marsh and a less drough-resistance species. However, one line collected from a golf course in Thailand is seemed to be extreme drought-resistance than domestic lines in Japan.
In this respect, the author compared the Thailand line with two domestic lines in Japan. The results show that (1) the length and width of lamina and the stem diameter of the Thailand line were smaller, (2) the drought-resistance of the Thailand line was more than the domestic lines in Japan.
The Thailand line may be a usable line for lawn grass in the warm region of Japan.