Alternanthera denticulata

Basic information
Scientific name	Alternanthera denticulata	Click to magnify
Major synonym	Alternanthera nodiflora
Common names	Joyweed
Higher taxon	Amaranthaceae, Caryophyllales, Magnoliopsida, Magnoliophyta
Natural range	Tropical America
Habitat	Roadside, around rice field

Invasion information
Range in Japan	Pacific coastal side of central to southern Japan.
Origin	Unknown.
Date	Middle Meiji Era (late 19 C)
Route	Unknown.
Impact	Unknown.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	Tropical Asia, Africa, Australia

Reference	Notes
Ogaito, H. (2009, personal communication, on the occurrence in Mie Pref.) Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Tokyo (in Jpn) etc.