Stems clustered, to 2 m tall, 1.5-2 cm diameter, erect or sometimes creeping. Leaves 10-17; leaf sheaths 10-15 cm long, extended above the petioles into ca. 15 cm long auricles; petioles 60-84 cm long, the proximal ca. half or less with widely spaced, recurved, brown spines to 0.6 cm long; blades to 58 cm wide, split into 5-7 segments, without minute reddish-brown scales abaxially, with straight sides; costas 6.0-10.0 cm long; middle segment split for half or more its length (to apex of costa) into 2 lobes, these wider than the other segments, 17-28 cm long, 7-11 cm wide at the apices; indentations leading to adaxial folds 0.4 cm deep, those leading to abaxial folds 0.3 cm deep, indentations deeper on lateral segments. Inflorescences to 90 cm long, erect among the leaves; prophylls to 11 cm long; peduncles to 52 cm long; rachis to 45 cm long with 1-5 partial inflorescences (2-5 on staminate plants, 1 on pistillate plants), these branched to 1 order, subtended by narrow, tubular, scarcely brown tomentose rachis bracts, these splitting apically; staminate rachillae 2-4 on each partial inflorescence, 6-11 cm long, 1-1.5 mm diameter, moderately covered with wooly, brown hairs; floral stalks scarcely developed, solitary or borne in pairs, each subtended by small, ciliate bracteoles; staminate flower buds 2.8-4.5 mm long, bullet-shaped; calyces 2.5-3.5 mm long, cupular, gibbous, 3-lobed at the apices, ciliate, scurfy brown hairy at the bases; corollas 2.8-3.5 mm long, split for about half their length into 3 petals, glabrous; staminal rings ca. 0.5 mm long; filaments free for ca. 0.5 mm long, more or less equal in length; anthers 0.3 mm long; pistillate rachilla 1 on the single partial inflorescence, 13-21 cm long, ca. 2 mm diameter, hairy as the staminate rachillae; floral stalks scarcely developed, solitary, each subtended by ciliate bracteoles; pistillate flower buds ellipsoid, ca. 2.5 mm long; calyces ca. 2.5 mm long, cupular, gibbous, 3-lobed at the apices with each lobe splitting again as the fruits develop and becoming 6-lobed, ciliate, brown scurfy hairy at the bases; corollas ca. 2 mm long, split for almost their entire length into 3 petals, glabrous; staminal rings scarcely developed, with vestigial filaments; pistils ca. 2 mm long including a 0.5 mm long style, glabrous. Fruits ca. 1 cm diameter, globose, bright red at maturity, sometimes 2 fruits developing from one flower, epicarp warty.
Lavori in corso
Informazioni specie attualmente in fase di revisione!
Endemic to northern Vietnam (Ninh Binh, Hoa Binh, and Son La) in primary, broad-leaved, evergreen forest on steep slopes, often in karst limestone areas, at 200â€“1,015 m elevation.