Daemonorops sepal  

Clustering moderate-sized rattan, often forming thickets. Stems climbing to 10 m long, often less, without sheaths up to 2 cm diam., with sheaths to 3.5 cm diam., internodes to 20 cm long. Leaf cirrate; sheaths dull green, very densely armed with dull brown spines to 3 cm long, these sometimes grouped, and abundant chocolate brown indumentum, the spines often paler than the indumentum; knee well developed; ocrea inconspicuous; petiole 25–30 cm long, armed with scattered spines along the margins; rachis to 1.75 m or more long; cirrus to 1 m; leaflets c. 80 on each side of the rachis, regularly arranged, very close, linear, the longest to 35 x 1.5 cm, armed with bristles on nerves adaxially, along the margins and abaxially along the mid-vein. Inflorescences erect, ± sessile, the male and female superficially similar, but the male branched to 3 orders and the female to 2 orders, the whole inflorescence to c. 30 cm long, usually less, 10 cm wide; prophyll boat shaped with a beak to 10 cm long, and very densely armed with slender black spines to 3.5 cm long and dense dark indumentum, enclosing the entire inflorescence with all its bracts, the prophyll splitting at anthesis but bract tips usually remaining captured within the tip of the prophyll; rachillae very densely crowded, the male to 1 x 0.1 cm, the female to 3 x 0.3 cm. Mature fruit rounded, c. 3 cm diam., with a short beak to 1.5 x 1.5 mm, and covered in 15–18 vertical rows of rich brown, channelled scales with paler margins. Seed rounded, irregularly angled, c. 2.5 cm diam.; endosperm deeply ruminate. Seedling leaf not known.