Vanda tricolor Lindley, Orchidaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 8 (Go to the risk assessment)

Common name(s): [more details]

English: Indonesian vanda orchid

Habit:  herb

Description:  "These...plants reach 3 feet in height and have linear, recurved leaves 14-18 inches long with an unequally bilobed apex.  The inflorescences are horizontal to arching and shorter than the leaves, with showy, fragrant, 2-3 inch diameter flowers, white to yellow, densely spotted with purple-brown, the tepals swept back against the flower pedicel, clawed basally, and undulate around the margins.  The lip is magenta, 3-lobed, the mid-lobe violin-shaped, apically notched and 3-ridged, and the spur sideways-compressed, 0.4 inch long"  (Staples & Herbst, 2005; p. 737).

"The inflorescence is curved, with 6-10 fragrant, waxy, long-lasting flowers, about 4 cm tall.  The petals and sepals are curled backwards in its proximal two-thirds and widened in the distal third, with an undulating edge; the petals are also twisted backwards.  The colour is vary variable, from off-white to pale cream or mauve, with numerous chocolate-brown spots arranged in longitudinal rows"   (Teoh, 2005; p. 237).

Habitat/ecology:  "Epiphytic, rock-dwelling, or terrestrial plants"  (Staples & Herbst, 2005; p. 737).

Propagation:  Seed

Native range:  Indonesia and Laos (GRIN).

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	Maui Island	introduced invasive cultivated	Oppenheimer, Hank L. (2006) (p. 12) West Maui. Voucher cited: Oppenheimer & G. Hansen H110413 (BISH)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Frohlich, Danielle/Lau, Alex (2010) (p. 14) Voucher cited: Frohlich & A. Lau 2008100201 (BISH)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Indonesia Indonesia	Indonesia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

Additional information:
Additional online information about Vanda tricolor is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Vanda tricolor as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Vanda tricolor may be available from the Germplasm Resources Information Network (GRIN).

References:

Frohlich, Danielle/Lau, Alex. 2010. New plant records from O‘ahu for 2008. In: Evenhuis, Neal L. and Eldredge, Lucias G., eds. Records of the Hawaii Biological Survey for 2008. Bishop Museum Occasional Papers 107:3-18.

Oppenheimer, Hank L. 2006. New Hawai‘i plant records for 2004. In: Evenhuis, Neal L. and Eldredge, Lucias G., eds. Records of the Hawaii Biological Survey for 2004-2005. Part 2: Notes. Bishop Museum Occasional Papers 88:10-15.

Porcher, Michel H. 2011. Searchable World Wide Web Multilingual Multiscript Plant Name Database. The University of Melbourne, Australia. Online resource.

Teoh, Eng-Soon. 2005. Orchids of Asia. Marshall Cavendish, 367 pp.

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.