Acidosasa lingchuanensis

HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 200–400 cm long; 20–30 mm diam.; woody. Culm-internodes terete; hollow; 30–40 cm long; scaberulous; distally pubescent. Lateral branches dendroid. Branch complement three; thinner than stem. Culm-sheaths green; hispid; with tawny hairs; hairy on margins; auriculate; with acute auricles; setose on shoulders; shoulders with straight hairs; shoulders with 10–15 mm long hairs. Culm-sheath ligule entire, or ciliolate. Culm-sheath blade linear; spreading, or reflexed. Leaves 3–5 per branch. Leaf-sheaths outer margin hairy. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 6.5–14 cm long; 10–23 mm wide. Leaf-blade venation with 10 secondary veins. Leaf-blade surface glabrous. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; scanty; lax; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 8–12 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 80–110 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4–5 mm long.

GLUMES Glumes several; persistent; similar; shorter than spikelet.

FLORETS Fertile lemma oblong; 10 mm long; 5 mm wide; chartaceous; without keel; 9–11 -veined. Palea keels ciliate. Palea apex obtuse. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3. Anthers 6; 5 mm long. Stigmas 3. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Chu & Chao 1996.

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