Alpinia uraiensis Hayata, Icon. Pl. Form., 5: 224. 1915. Moo, Fl. Taiwan 5: 840. 1978 (pro parte); Wu & Chen, Fl. Reipubl. Popul. Sin. 16(2): 84 1981; R. M. Smith, Edinburgh J. Bot. 47(1): 60. 1990; J. J. Yang & J. C. Wang in S. T. Chiu & C. I. Peng, Proc. Cross-Strait Symp. Florist. Diversity Conserv. 191. 1998.
烏來月桃
Languas uraiensis (Hayata) Sasaki, Trans. Nat. Hist. Soc. Form. 14: 86. 1924.
Plant 2.5-3.5 m. Leaves sessile to petiolate, petiole 0-2.5 cm long; blade 70-105 × 9-20 cm, oblong to oblanceolate, tip acuminate, base oblique, membranous, glabrous on both sides except for the margin; ligule 1 cm long, entire to bilobed, coriaceous, hairy on outer surface, usually split at lateral veins. Inflorescence racemose, erect, with spinous hair, flower-bearing part 25-35 cm long, sometimes lower rachilla with 2 flowers. Flowers pedicellate, pedicel 0.2-0.5 cm long; bracteole white, tip pink, folded around the bud, base hairy, 4-5 cm long, deciduous or persistent; calyx white, tip pink, tubular, 3-3.5 cm long, shortly 3-lobed and deeply split unilaterally, minutely pubescent on outer surface; corolla white, tube 1.2 cm long, lobes oblong, outer surface sparsely pubescent, margin ciliate, dorsal lobe 4 × 3 cm, laterals 3.5 × 1.8 cm; labellum dark yellow, triangular, involute, 4.8 × 5.2 cm, with red stripes and spots at the center, apex emarginate; staminodes linear, 0.4 cm long, with red stripes; anther 2.2 cm long; filament band-form, 1.4 cm long; stigma funnel-form, apex densely hairy; style slender, 3.5-5 cm long; epigynous glands massive, united on one side, yellow, massive, 0.4 cm long; ovary greenish, pubescent, 1.0 × 0.8 cm. Fruits capsular, orange, globose, 2.3-3.5 × 2.5-3.0 cm, smooth, with spinous hair. Seeds 60-120; aril white, membranous
KEELUNG : Chinzenhu, Yang 1798(TNU).TAIPEI : Nankungshan, Yang 858(TNU); Mucha, Yang 886, 1604(TNU); Yehliu, Yang 1837(TNU); Payen, Yang 1838(TNU); Shisingshan, Yang 1836(TNU); Shuanghsi, Yang 1587(TNU); Pinghsi, Yang 1289(TNU); Tachijia Moo 45 (TAI), Yang 885(TNU); Shenkeng, Yang 817, 855, 1116, 1648(TNU); Hsintien, Hsu 5236 (TAI), Yang 667, 841, 1140, 1710(TNU); Chuchih, Yang 729(TNU), Sasaki s.n. Apr. 1920 (TAIF); Tatungshan, Hsu 6417 (TAI), Yang 850, 912, 983, 1623(TNU); Wulai, Matuda s.n. Jul. 25, 1918 (TAI), Odashima 1328 (TAI), Shimada 5385 (Type of Alpinia uraiensis, TAI !), Sasaki s.n. May. 1922 (TAIF); Pinglin, Yang 1665(TNU), Peng 13847 (HAST), Lu 15543, 15545, 15546, 15556 (TAIF); Shihting, Peng 12282 (HAST). MIAOLI : Shihtoushan, Peng 14852 (HAST). ILAN : Yuanshan,Yang 721, 917, 1713(TNU), LU 15564, 15573, 15574, 15575 (TAIF); Niuto, Yang 779(TNU); Ilan, Lai s.n. Apr. 11, 1987 (PPI).
Endemic, at low altitudes of northern Taiwan.
