Otatea transvolcanica (Otatea transvolcanica)
Description
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.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Liliopsida
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Order: Poales
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Family: Poaceae
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Genus: Otatea
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