Distribution & Habitat of the Asiatic Dayflower

The plant's native distribution includes much of East Asia and Southeast Asia. Country by country, it is found in China, Taiwan, Japan, Korea, the Russian Far East, Cambodia, Laos, Malaysia, Thailand and Vietnam. Within China it is found in all provinces except Qinghai, Hainan, Chinese Turkestan, and Tibet. In Japan the plant is found throughout the bulk of the country from Hokkaido south to Kyūshū. In Russia the Asiatic dayflower is found naturally on Sakhalin as well as in the Far East in areas surrounding the Ussuri River.

The species has been introduced too much of Europe and eastern North America. On the former continent it is now found from Central Europe well into western Russia. Specifically it is known from Italy north to Switzerland, east through the region encompassing the former Yugoslavia, east into the regions around the Black Sea including Romania, the Moldavia Region, and the Ukraine but excluding Crimea, north through the Dnieper Basin into Belarus and Russia, continuing east into the regions surrounding the Don River and the Volga River south to their intersection at the Volga-Don Canal and north to the regions around Lake Ladoga and Lake Ilmen, and farther east to the regions of the Ural River and the Kama River. It is also found in the Czech Republic and Slovakia. It is present in the provinces of Ontario and Quebec in Canada, and in most of the eastern and central states from Massachusetts and New York in the northeast, west to Minnesota and south through the Great Plains to Texas and east to extreme northern Florida in the United States.

Within its native distribution, the plant is most typical of moist, open places, including shady forest edges and wet areas of crop fields, orchards, ditches, and roadsides. In Taiwan, it can be found from 350 to 2400 m (1000–7500 ft) elevation. In areas where the Asiatic dayflower is an introduced weed it is most common in waste places, but also along the edges of fields, woods, and marshes, and occasionally penetrating into woods.





Source: http://en.wikipedia.org/wiki/Commelina_communis

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