Noun
An area parallel to a margin but slightly further in.
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The ears are brownish, more or less rusty, the extreme edge whitish, particularly on the posterior border, the apical third externally with a submargin of black, expanding towards the tip into a broad blackish subapical spot.
Glumes slightly unequal […] ; florets slightly shorter than the longer glume; lemma ciliate on the margins or submargins in the upper part