Daemonorops didymophylla Becc. in Hook.f.

Moderate clustering rattan. Stems rarely more than 15 m tall, often fertile when only 3 m tall, without sheaths c. 1.2 cm diam., with sheaths to 3 cm diam., internodes to 15 cm long. Leaf cirrate; sheaths dark green, armed with scattered, somewhat reflexed, variable, grey to black triangular spines, 4–2.5 cm long with yellow bases; knee prominent; petiole to 40 cm long usually ± rounded in cross section, armed with sparse spines on the yellowish lower surface and rather dense groups of short spines on the dark green upper surface; rachis to 1.1 m long; cirrus to 1 m long; leaflets to c. 20 on each side of the rachis, usually arranged in divergent opposite or alternate pairs but sometimes arranged ± regularly in the proximal portion and paired in the distal portion only, or subregularly throughout, the leaflets usually rather broad, to 35 x 3.5 cm, rarely narrow lanceolate, 40 x 2 cm, bristly along the margins, otherwise unarmed. Inflorescences to 20 cm long, rarely to 50 cm long, male and female superficially similar, the male branching to 3 orders, the female to 2 orders, with all but the first bract quickly falling at anthesis; peduncle and first bract densely armed with partial whorls of short triangular spines to 5 mm long; partial inflorescences up to c. 5, often 1 or 2 only; rachillae and flowers covered in red-brown indumentum; male rachillae to 20 x 1.2 cm; female rachillae 30–40 x 0.3 cm. Ripe fruit ovoid to 2.5 x 2 cm, covered in 12–15 vertical rows of rather swollen red-brown scales densely covered with dragon's blood. Seed ovoid, to 1.3 x 1.2 cm with slight flattening; endosperm deeply ruminate. Seedling leaf with 4–6 broad leaflets.