Stems solitary or clustered, 1.5-2 m tall, 2 cm diameter, erect, densely covered with flat, black scales. Leaves 6; leaf sheaths 7-15 cm long, densely covered with flat, black scales, extended above the petioles into 9-17 cm long auricles; petioles 16-47 cm long, scaly as the sheaths, the proximal ca. half with closely to widely spaced, recurved, black spines 0.2-0.6 cm long, these sometimes bifid; blades 20 cm wide, split into 10-14 segments, with numerous, minute reddishbrown scales abaxially, with straight sides; costas 0.5-1.5 cm long; middle segment split almost to the base of the blade (to apex of costa) into 2 lobes, these not wider than the other segments, 13-23 cm long, 2.5-3 cm wide at the apices; indentations leading to adaxial folds 1-1.5 cm deep, those leading to abaxial folds 0.4-0.6 cm deep, indentations deeper on lateral segments. Inflorescences 60 cm long, erect among the leaves; prophylls 16 cm long; peduncles not seen; rachis absent, with 1 partial inflorescence, this branched to 1 order in pistillate plants, 2 orders in staminate plants, subtended by narrow, tubular, scarcely brown tomentose rachis bracts, these splitting apically; staminate rachillae 21 on each partial inflorescence, 12-18.5 cm long, ca. 0.5 mm diameter, minutely hairy; floral stalks scarcely developed, borne in groups of 2-3, each subtended by small, ciliate bracteoles; staminate flower buds 1-1.5 mm long, globose; calyces 0.8-1.2 mm long, cupular, gibbous, 3-lobed at the apices, sparsely hairy; corollas 0.6-1 mm long, split completely to the base into 3, valvate petals, glabrous; staminal rings short; filaments free for 0.1-0.2 mm; anthers 0.2 mm long; pistillate rachillae 10-12 on each partial inflorescence, 4-10 cm long, 0.5-0.7 mm diameter, minutely hairy; floral stalks scarcely developed, solitary, each subtended by small bracteoles; pistillate flower buds 1.5 mm long, oblong; calyces 1.5 mm long, gibbous, 3-lobed at the apices with each lobe splitting again as the fruits develop and becoming 6-lobed, minutely and sparsely hairy; corollas ca. 1 mm long, split to the base into 3 petals, these spreading horizontally as the fruits develop, glabrous; staminal rings absent, with vestigial filaments; pistils ca. 0.3 mm long including a 0.1 mm long style, glabrous. Fruits 0.6-0.7 cm diameter, globose, colour not known, epicarp warty.
Lavori in corso
Informazioni specie attualmente in fase di revisione!
Endemic to southern Vietnam (Dak Lak, Khanh Hoa, Lam Dong) in primary, wet, mixed forest or cloud forest on steep, rocky slopes at 1,250-1,700 m elevation.