Phyllostachys kwangsiensis

HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 800–1600 cm long; 40–100 mm diam.; woody. Culm-internodes semiterete; hollow; 35 cm long; yellow and mid-green; distally pruinose and pubescent. Culm-nodes without obvious supra-nodal ridge. Lateral branches dendroid. Culm-sheaths chartaceous; brown, or purple; pilose; without auricles; setose on shoulders. Culm-sheath ligule purple; ciliate. Culm-sheath blade linear, or lanceolate; reflexed; wrinkled. Leaves cauline; 1–4 per branch. Leaf-sheath oral hairs setose. Ligule a ciliolate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 10–15 cm long; 8–15 mm wide. Leaf-blade surface puberulous; sparsely hairy; hairy on both sides.

INFLORESCENCE Synflorescence bractiferous; fasciculate; 10 cm long; with spathaceous subtending bracts; without axillary buds at base of spikelet; with ultimate bract subtending a compact bracteolate fascicle of spikelets (2–3 spikelets); prophyllate below lateral spikelets.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.

GLUMES Glumes one the lower absent or obscure; persistent; shorter than spikelet. Upper glume oblong; chartaceous; without keels. Upper glume surface puberulous. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; 20–25 mm long; chartaceous. Lemma surface hispidulous. Lemma apex acuminate. Palea chartaceous.

FLOWER Lodicules 3; 4 mm long. Anthers 3; 7–8 mm long. Stigmas 2.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Fl China 2006.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.