Griff. ex Baker, Zingiberaceae |
Present on Pacific Islands? yes
Primarily a threat at high elevations? no
Habit: herb
Description: "Epiphytic, perennial herb. Pseudostems up to 0.6 m high, bladeless sheaths 2-3. Ligule oblong, 3.1-4.9 by 1.3-1.7 cm, apex acute, membranous, greenish. Leaves sessile, blade elliptic-lanceolate, 32.1-36.7 by 7.7-7.8 cm, base cuneate, apex acute, margin slightly undulate, both surfaces glabrous, midrib sparsely hairy. Inflorescence a terminal spike, erect, ca. 8.5 cm long; peduncle ca. 4.2 cm long; bracts imbricate, ovate, 2.8-3.0 by 0.9-1.0 cm, apex acute, greenish with brownish hairy, each subtending a cincinnus of 1 flower; bracteole tubular, ca. 1.2 by 0.3 cm, apex acute, membranous, pubescent or glabrous, greenish. Flowers yellow to orange; calyx tubular, 2.8-3.1 by ca. 3 cm, apex 2-3-dented, orange; corolla tube curl-backward, 3.5-3.8 by ca. 3 cm, 3-lobed, lobes linear, 5.3-5.8 by 0.4 cm, apex hooded, yellowish; lateral staminodes oblong, 3.7-4.0 by 0.6-0.7 cm, apex acute, curl-backward, margin undulate; labellum, 2.9-3.0 by 0.7-1.1 cm, base attenuate into 0.5 claw, apex deeply divided to the base, 2.4-2.5 cm long, each lobe linear 2.4-3.0 by ca. 0.3 cm, orange; filament 7.7-7.9 cm long, orange; anther dorsified, 1.1-1.2 by 0.2-0.3 cm, base divaricate, yellowish to pale salmon red; ovary pubescent, 4 by ca. 4 mm, 3-loculed, placentation axile; epigynous glands 2, slender, 2-3 by ca. 1 mm, yellowish; stigma densely ciliate, green. Fruits subglobose to globose, 0.8-1.2 by 1.0-1.2 cm, pubescent, greenish. Seeds numerous, oblong, 6-8 by 3-4 mm aril reddish-orange. This taxon can be easily recognized by its 1-flowered bracts, yellow flower, curl-backward staminodes and labella" (Wongsuwan & Picheansoonthon, 2011; pp. 146-147).
Habitat/ecology: In its native habitat, "tropical evergreen rain forest and peat swamp forest" (Wongsuwan & Picheansoonthon, 2011; pp. 146-147).
Propagation: Seed
Native range: Malaysia and Thailand (Wongsuwan & Picheansoonthon, 2011; pp. 146-147).
Presence:
Pacific | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
State of Hawaii
Hawaiian Islands |
Hawaiian Islands |
introduced
cultivated |
Staples, George W./Herbst, Derral R. (2005) (p. 767)
"Perhaps no longer cultivated". |
State of Hawaii
Hawaiian Islands |
Oahu Island |
Bishop Museum (U.S.A. Hawaii. Honolulu.) (1954) (voucher ID: BISH 147204)
Taxon name on voucher: Hedychium longicornutum Griff. ex Baker |
Pacific Rim | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
Australia
Australia (continental) |
Australia (continental) |
introduced
|
Randall, R. P. (2007) (p. 236) |
Malaysia
Malaysia |
Malaysia (country of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Thailand
Thailand |
Thailand (Kingdom of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Control: If you know of control methods for Hedychium longicornutum, please let us know.