紫序箭竹 zi xu jian zhu

Arundinaria vicina Keng, Sinensia 7: 410. 1936; Pseudo-sasa vicina (Keng) T. Q. Nguyen; Sinarundinaria vicina (Keng) P. C. Keng.

Rhizome, culm, and culm sheath unknown. Flowering branches 3 per node; ligule truncate or arcuate, ca. 1 mm, abaxially sparsely hairy. Leaves 1–3 per flowering branch; blade 2.5–8 × 0.4–0.7 cm, glabrous, secondary veins 3-paired, transverse veins distinct, one margin scabrous, other margin smooth. Inflorescence a raceme; spikelets 3–5, 2–3 cm, rachilla internodes 4–5 mm, slightly pilose; florets 4–6. Glumes 2, glabrous, apex acuminate; lemma sparsely hairy, apex obtuse or acuminate; palea keels setose; lodicules yellow-brown, margins apically ciliate. Stamens unknown. Stigmas 2. Caryopsis unknown.

* Yunnan.

The type locality remains unknown.