Avena fatua var. fatua(common wild oat, "Karasumugi")
Japanese name: カラスムギ（烏麦） Scientific name:Avena fatua var. fatua
[Overview]
An annual or biennial 60–100 cm tall, found in fields, roadsides and wasteland.
The stems are circular in cross section, hollow, tufted, soft, rather thick and erect.
The leaves are linear, 10–30 cm long and 0.5–1 cm wide.
The ligule is conspicuous, 4 mm high.
It bears panicles 15–30 cm long; the branches of the inflorescence are whorled, and the spikelets, about 2 cm long, hang down with the upper part of the stalk bent.
Each spikelet consists of 3 florets and has large glumes; the awn arises from the back, bends like a knee, and is twisted partway.
The lemma has soft hairs.
