Otatea transvolcanica

HABIT Perennial. Rhizomes short (30–45 cm); pachymorph. Culms erect; erect at the tip, or inclined at the tip; 300–800 cm long; 10–60 mm diam.; woody. Culm-internodes terete; with small lumen, or solid; 24–27 cm long; distally pruinose. Culm-nodes with distinct supra-nodal ridge. Lateral branches dendroid; extravaginal; ascending. Branch complement one, or two; with 1 branch dominant. Culm-sheaths persistent; 24–29 cm long; 3 times as long as wide; hispid; with appressed hairs; glabrous on margins; setose on shoulders; shoulders with 10–15 mm long hairs. Culm-sheath ligule 0.9–2.2 mm high. Culm-sheath blade triangular; deciduous; reflexed; 9–20 cm long; glabrous on surface; acute. Leaves 6–10 per branch. Leaf-sheaths without keel; glabrous on surface. Leaf-sheath oral hairs setose; 13–21.5 mm long. Ligule an eciliate membrane; 0.1–0.2 mm long; truncate. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.3 cm long. Leaf-blades lanceolate; 34–60 cm long; 25–60 mm wide; glaucous and mid-green; discolorous with last colour beneath. Leaf-blade venation without cross veins. Leaf-blade surface scabrous; rough abaxially; glabrous. Leaf-blade margins scaberulous. Leaf-blade apex attenuate.

INFLORESCENCE Flowering specimens unknown.

DISTRIBUTION North America: Mexico.

NOTES Bambuseae. Ruiz-Sanchez & Clark 2012.

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