Japanese name: アレチイネガヤ（荒地稲茅） Scientific name:Piptatherum miliaceum
[Overview]
A perennial 60–100 cm tall, widely naturalized in dry regions such as North and South America and Australia.
The roots are strong and do not pull out easily.
The hard stems rise obliquely.
The leaves are linear, 10–40 cm long and 3–6 mm wide, with a slightly rough surface.
A panicle 15–40 cm long at the stem tip bears many spikelets.
The branches of the inflorescence are alternate and 3–5 cm long.
The spikelets are 4–5 mm long and tinged with purple.
The lemma is smooth and leathery, with an awn 3–5 mm long extending from the tip.
[History]
It was first confirmed in Kitakyushu, Fukuoka in 1962, and has since also been confirmed in Kanagawa, Hyogo, Nara and elsewhere.
