Japanese name: ヤクナガイヌムギ（葯長犬麦） Scientific name:Bromus carinatus
[Overview]
A short-lived perennial or biennial 50–150 cm tall.
The leaves are linear, 20–30 cm long and 0.5–1 cm wide, and hairless.
The leaf sheaths may be hairy or hairless.
The leaf sheaths have a triangular, membranous ligule.
A panicle 15–30 cm long is produced, bearing spikelets.
The spikelets are 2–4 cm long, consist of 6–10 florets, and are markedly flattened.
The first glume is 0.8–1.1 cm long with 3–5 veins, and the second glume is 1–1.3 cm long with 5–7 veins.
The palea is about 3/4 the length of the lemma.
The lemma is strongly folded in two, 1.1–1.7 cm long with 7–9 veins, and has an awn of 0.2–1.2 cm at the tip.
The anthers are 0.4–0.5 cm long and yellowish brown, and hang down from the florets at flowering.
Cleistogamous flowers are also borne at the tips of the spikelets.
[History]
It is a naturalized plant first recorded in Kanagawa.
[Notes]
Its form is highly variable, and it is easily confused with Inu-mugi and Noge-inu-mugi.
