Aphanamixis polystachya (Wall.) R.N. Parker, Meliaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 3 (Go to the risk assessment).

Other Latin names:  Aglaia polystachya Wall.; Amoora rohituka (Roxb.) Wight & Arn.; Andersonia rohituka Roxb.; Ricinocarpodendron polystachyum (Wall.) Mabb.

Common name(s): [more details]

Chinese: shan lian

English: amoora

Malayan: gerantong tengah

Thai: lao hang, ma hang kan, ta suea

Habit:  shrub/tree

Description:  "Trees or shrubs, (2-)2 0-30 m tall. Leaves odd- or even- pinnate, 30-60 (-90) cm; leaflets (5-) 9-21, opposite; petiolules (2-) 6-12 mm; leaflet blades oblong-elliptic, elliptic, or ovate, (7-) 17-26 x 4-10 cm with basal pair smallest, membranous when young, subleathery to leathery when mature, with visible transparent tiny spots under sunlight, both surfaces glabrous, secondary veins (8-) 11-20 on each side of midvein and slender, base oblique and cuneate to broadly cuneate or sometimes one side rounded, margin entire, apex caudate-acuminate to obtuse. Inflorescences axillary, less than 30 cm. Flowers 6-7 mm in diameter, with 3 bracteoles. Sepals 5, suborbicular, 1-1.5 mm in diameter, margin sometimes ciliate. Petals 3-7 mm in diameter, concave. Staminal tube globose, glabrous; anthers 5 or 6, oblong. Ovary 3-locular, with thick trichomes. Capsule spherical-pyriform to nearly ovoid, 2-2.5 x 2.5-3 cm, orangish when mature. Seeds grayish brown, oblate, 1.3-1.5 x 1-1.2 cm"  (Flora of China online).

Habitat/ecology:  In China (native), "dense or sparse mixed evergreen broad-leaved and deciduous forests in mountainous regions; low to middle elevations"  (Flora of China online).

Propagation:  Seed

Native range:  Southern and Southeastern Asia to Papua New Guinea and the Philippines; also cultivated (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	Kaua‘i Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (year unknown) (voucher ID: PTBG 14731) Taxon name on voucher: Aphanamixis polystachya
State of Hawaii Hawaiian Islands	O‘ahu Island		Bishop Museum (U.S.A. Hawaii. Honolulu.) (1932) (voucher ID: BISH 58163) Taxon name on voucher: Aphanamixis polystachya (Wall.) R.N.Parker
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Philippines Philippine Islands	Philippine Islands	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Solomon Islands Solomon Islands	Solomon Islands	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Cambodia Cambodia	Cambodia (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
China China	China (People's Republic of)	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011)
Indonesia Indonesia	Indonesia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Malaysia Malaysia	Malaysia (country of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Singapore Singapore	Singapore (Republic of)	native	Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 14) Endangered
Taiwan Taiwan	Taiwan Island	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011)
Thailand Thailand	Thailand (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Vietnam Vietnam	Vietnam (Socialist Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

Additional information:
Information and photos from the Flowers of India web site.
Information from the Guide to trees of Papua New Guinea.

Additional online information about Aphanamixis polystachya is available from the Hawaiian Ecosystems at Risk project (HEAR).

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

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

References:

Bishop Museum (U.S.A. Hawaii. Honolulu.). 1932. Voucher specimen #BISH58163(Judd, A.F. s.n.).

Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. 2009. A checklist of the total vascular plant flora of Singapore: native, naturalised and cultivated species. Raffles Museum of Biodiversity Research, National University of Singapore. 273 pp.

Ministry of the Environment, Korea. 2011. ASEAN tropical plant database (online resource).

National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.). 0. Voucher specimen #PTBG14731(Flynn, Tim 1994).

Staples, George W./Herbst, Derral R. 2005. A tropical garden flora: plants cultivated in the Hawaiian Islands and other tropical places. Bishop Museum Press, Honolulu. 908 pp.

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

Zhengyi, Wu/Raven, Peter H./Deyuan, Hong. 2011. Flora of China (online resource).