Gamochaeta coarctata

Basic information
Scientific name	Gamochaeta coarctata	Click to magnify
Common names	Spiked cudweed, Shiny cudweed
Higher taxon	Asteraceae, Asterales, Magnoliopsida, Magnoliophyta
Natural range	South America.
Habitat	Vacancy, urban area, roadside, part, etc.

Invasion information
Range in Japan	Kanto District to wester Japan.
Origin
Date	Early 1970s.
Route	Accidental: Hitchhiking on greening plants
Impact	Competition with native and crop species. Affected organism: Native herbs and crop plants
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	Worldwide.