The pole is 20-30 meters high, 20-30 cm in diameter, upright, and the tip is drooping or long, and the nodes are not raised; the internodes are 30-45 cm long, the wall thickness is 1-3 cm, the tongue is prominent, and the height is 6-12 Mm, with short tooth-like cracks on the edge; the tubercle valgus, ovate-lanceolate, 13-38 cm long.
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