Korthalsia rigida (Korthalsia rigida)
Description
Moderate rattan, clustering, frequently branching in the canopy, climbing to 50 m or more. Stem without sheaths to 2 cm in diam., usually less, with sheaths to 2.5 cm, internodes to 20 cm or more. Sheaths dull green, densely covered with persistent grey indumentum and deciduous chocolate-coloured scales, and sparsely armed with triangular spines to 10 mm, rarely densely armed (juvenile shoots); ocrea to about 4 cm long, tightly sheathing, ± truncate with a narrow tattering margin, rarely splitting, usually unarmed. Leaf to about 1.5 m long, including the petiole to 10 cm and cirrus to 75 cm. Leaflets about 5-7 on each side of the rachis, shining dark green on upper surface, bluish-grey beneath, the longest to 15 × 8 cm, borne on a short stalk to 2.5 cm, chocolate coloured scales occasionally present on ribs on the undersurface. Inflorescences produced from topmost up to 12 nodes, highly branched to 80 cm, bearing about 8 partial inflorescences on each side, each with about 10 rachillae; rachillae slender, inconspicuously tomentose, to 150 × 5 cm, dull dark brown. Fruit rounded, about 1 cm in diam., with 15 vertical rows of dark green to dull brown scales. Seed about 8 mm in diam., irregularly ruminate.
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: Arecales
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Family: Arecaceae
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Genus: Korthalsia
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