Pacific Island Ecosystems at Risk (PIER)

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Hedychium longicornutum
Griff. ex Baker, Zingiberaceae
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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
O‘ahu 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)


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 12 JUL 2013 and was last updated on 6 AUG 2013.