A species which is usually rare in the Himalayas, but is common in Chirang district. It has strong very upright culms, but they are quite short and can be rather crooked, with swollen nodes and very heavy branching. It can be distinguished by the prominent leaf sheath auricles, and by the culm sheath auricles, one of which is quite tall, while the other is much broader. There are often faint yellow stripes on the lower internodes of some culms. Unlike B. nutans subsp. cupulata, the culm sheath blade is not strongly cupped and it is more persistent. The hairs on the culm sheath are brown rather than black. It is similar to B. vulgaris, which also has varieties with striped
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