Oligostachyum puberulum (T. H. Wen) G. H. Ye & Z. P. Wang

Culm internodes basally flattened above branches, prominently pitted (like pigskin) below nodes, pale yellow scabrid; node, supra-nodal ridge, and sheath scar elevated; intranode ca. 5 mm. Branches 3–5 per node, initially scabrid. Culm sheaths unknown. Leaves 2 or 3 per ultimate branch; sheath initially scabrid, margins densely ciliate; auricles hook-shaped or absent; oral setae radiating from auricle or erect if auricle absent; ligule subtruncate or arcuate, apex ciliolate; blade lanceolate, 9–19 × 0.1–1.8 cm, abaxially puberulent. Racemes initially terminating leafy branches. Spikelets ca. 6 × 2–3 cm; florets 11–13. Glumes 2 or 3, 9–12 × 4–5 mm, 7–9-veined, apex acuminate and scabrid; lemma ca. 12 × 4 mm, adaxially puberulent, 15- or 16-veined, transverse veins distinct abaxially, margins apically ciliolate; palea smaller than lemma, ca. 10 × 2.5 mm, 3-veined between keels, flanks 2-veined with transverse veins, abaxially ciliolate; lodicules 3(–5), ca. 2.5 × 1 mm, 3-veined, apex ciliolate. Stamens 3; anthers ca. 4 mm. Ovary oblong, glabrous or sparsely pubescent; style 1; stigmas 2 or 3. Fl. Mar.

* Guangxi.

Sinobambusa puberula T. H. Wen, J. Bamboo Res. 2(1): 58. 1983.