Korthalsia scortechinii Becc.

Clustering, moderate-sized, high-climbing rattan, frequently branching in the forest canopy. Stems to 20 m or more long, without sheaths 1–1.5 cam diam., with sheaths 1.5–2 cm diam., internodes to c. 25 cm long in mid section of stem, longer near the base and in juvenile stems, much shorter near inflorescences. Leaf cirrate; sheaths dull green, with sparse short triangular spines to 0.2 cm long, and ± entirely covered by the swollen ocrea of the preceeding leaf, red-brown indumentum scattered; ocrea leathery, swollen, to 20 x 4 cm, shorter and proportionately wider near inflorescences, covered in scattered short triangular spines 5–8 mm long, and caducous chocolate-coloured scales, sometimes almost unarmed, ants usually abundant within the ocrea chamber; petiole 10 cm long, longer in juvenile stems; rachis to 1.2 m; cirrus to 1.25 m, armed with scattered reflexed spines; leaflets up to 11 on each side of the rachis, regularly arranged and rather distant, rather narrow-rhomboid, the largest to 30 x 5 cm, the distal ¼ only praemorse, adaxially dark green, abaxially covered in whitish indumentum but not densely so. Inflorescences produced simultaneously from c. 6 topmost nodes, branched to 2 orders and each with up to c. 10 rachillae; rachillae to 25 x 0.8 cm. Mature fruit ovoid, c. 2 x 0.9–1 cm, covered in 16–18 vertical rows of dull brown unchannelled scales with fimbriate margins. Seed 1.5 x 1 cm, with a deep chalazal pit on one side; endosperm deeply ruminate.