The plant is lignification and is Arbor shaped. Pole height 6-18m, diameter 5-7cm, growth is still green, or old gray green, pole ring and sheath ring are very uplift. Culm sheath abaxially glabrous or puberulent distally, yellow to pale yellow with black spots and stripes of ear and tassel wool sheaths; both extremely easy to fall off; leaf sheaths long lanceolate, wrinkled, basally contracted; branchlets with 1-5 leaves, Ye Qiaoqiao mouth glabrous; dark green leaves, narrow lanceolate, glabrous. 1-2cm wide, secondary veins 6-8, thin. Branchlets spikes arranged in panicles of spikelets imbricate; containing 2-3 flowers, flowers at the top 1 or 2 pieces of degradation, glume, lemma lanceolate, micro hairs; sharp surface puberulent; palea, apex with 2 teeth, micro hair, long 12-15mm; lodicules number change, from 3 to 1 gold or absent, lanceolate, ca. 3mm; anther length 7-10mm, flowering, with very long filaments hanging in flowers; ovary is pointed oval, at the top of a long style, both the length of about 7mm, stigma 3, the length of about 5mm, a brush brush. The shoot period is 4-5 months, the flowering period from October to the next May.
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