Papaver dubium

Basic information
Scientific name	Papaver dubium	Click to magnify
Common names	Field poppy, Longhead poppy
Higher taxon	Papaveraceae, Papaverales, Magnoliopsida, Magnoliophyta
Natural range	Mediterranean coastal region, Europe
Habitat	Farmarea, roadside, vacancy, around montane region, etc.

Invasion information
Range in Japan	Most of entire Japan
Origin	Unknown.
Date	The first record was in 1960, at Tokyo.
Route	Deliberate: As ornament.
Impact	Potentially: Competition with native species and crops. Native organism(s) affected: Native plants.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	North and South America, Asia, N Africa, Oceania.

Reference	Notes
Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (in Jpn) etc.