Japanese name: ナガミヒナゲシ(長実雛芥子) Scientific name:Papaver dubium
[Overview]
An annual 20–60 cm tall, found along roadsides and on vacant lots.
White hairs cover the whole plant.
There are basal leaves and leaves on the stem, which are deeply divided once or twice pinnately.
The stem leaves are alternate.
The flowers are borne singly at the stem tips; they are orange, 4-petaled, and 3–6 cm across.
There are 2 sepals covered with long hairs, which fall as the flower opens.
The fruit is a slender capsule 2 cm long, topped by a persistent stigma with 7–9 radiating lines.
The fruit contains a great many small seeds.
[History]
It was first recorded in Tokyo in 1960 and has since naturalized in many places.