Bauhinia purpurea L., Fabaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 7 (Go to the risk assessment)

Common name(s): [more details]

English: bauhinia, butterfly tree, orchid tree, pink butterfly tree, purple bauhinia, purple butterfly tree, purple orchid tree

French: arbre à orchidées, fleurs pourpres

Spanish: pie de cabra

Habit:  tree

Description:  "Small tree to 4 m tall; petioles 2.5-3.5 cm long; leaf blades 4.5-11 cm long, 4.5-10 cm wide; inflorescence paniculate; flowers numerous, the buds clavate, ca 2 cm long prior to anthesis; petals very slender, the banner purple-striate, ca 7 mm wide, fertile stamens 3, the anthers ca 6 mm long, versatile"  (Welsh, 1998; p. 139).

 "A shrub or small tree 5-7 m high, commonly cultivated near sea level, or possibly sparingly naturalized along roadsides.  Its fragrant flowers, with three fertile stamens, have pale purple petals paler at base; its fruits may be as large as 30 x 2.5 cm"  (Smith, 1985; p. 121).

"A medium-sized...tree.  Leaves shallow-cordate and 9- or 11-nerved at base, the lobes rounded or obtuse to subacute.  Inflorescence a few-flowered corymb.  Flowers purple or at least purple-marked; calyx split into 2 valves with 5 teeth; petals oblanceolate, long-clawed; fertile stamens 3 or 4.  Pods 15-30 cm long, up to 2.5 cm wide, 12- 15-seeded"  (Walker, 1976; p. 543).

Key to some Bauhinia species:

Fertile stamen 1; staminodes 5, small; petals long-clawed, 4-5.5 x 2-3 cm, white to pink, with red blotches or dots, the uppermost one splotched with deeper red, yellow or yellow-margined; leaf blades ovate-oblong, 7-20 cm long and broad, cordate to rounded at base, pubescent beneath when young, lobed about 1/5-1/2 their length, the lobes obtuse to subacuminate. B. monandra.

Fertile stamens 3-10.

Petals crimson to deep red, yellow-dotted without, 2.5-4 cm long, the claw nearly as long as the lamina; fertile stamens 3; leaf blades crescent-shaped, 2-5 cm long and broad, cordate to rounded at base, shallowly lobed to about 1/3 their length, the lobes rounded. B. galpinii.

Petals white or yellow to purple, not clawed or with a claw much shorter than the lamina.

From: Smith, A. C. 1985. Flora Vitiensis nova: A new flora of Fiji. Lawai, Kauai, Hawai‘i. National Tropical Botanical Garden. Vol. 3, p 119.

Habitat/ecology:  Occurs at lower elevations in its native habitat.  In Fiji, "commonly cultivated near sea level, or possibly sparingly naturalized along roadsides" (Smith, 1985; p. 121). In New Caledonia, "cultivé, et assez commun en fourrés secondaires sur la côte Ouest" (MacKee, 1994; p. 72).

Propagation:  Seed

Native range:  "Southeastern Asia, now widely cultivated throughout the tropics" (Smith, 1985; p. 121).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
American Samoa Tutuila Islands	Tutuila Island	introduced cultivated	Space, James C./Flynn, Tim (2000) (p. 32)
Cook Islands Southern Cook Islands	Rarotonga Island	cultivated	McCormack, Gerald (2008) Probably in cultivation.
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		Bishop Museum (Honolulu) (1997) (voucher ID: BISH 653520) Taxon name on voucher: Bauhinia purpurea L.
Fiji Fiji Islands	Viti Levu Island	introduced invasive cultivated	Smith, Albert C. (1985) (p. 121) Vouchers cited: DA 11917, DA 12095 Possibly sparingly naturalized.
Fiji Fiji Islands	Viti Levu Island		Bishop Museum (Honolulu) (1960) (voucher ID: BISH 14482) Taxon name on voucher: Bauhinia purpurea L.
Fiji Fiji Islands	Viti Levu Island		Bishop Museum (Honolulu) (1959) (voucher ID: BISH 14483) Taxon name on voucher: Bauhinia purpurea L.
French Polynesia Society Islands	Tahiti Island		Bishop Museum (Honolulu) (1986) (voucher ID: BISH 545495) Taxon name on voucher: Bauhinia purpurea L.
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 96)
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1966) (voucher ID: BISH 652631) Taxon name on voucher: Bauhinia purpurea L.
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1954) (voucher ID: BISH 660545) Taxon name on voucher: Bauhinia purpurea L.
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced cultivated	Imada, Clyde T./Staples, George W./Herbst, Derral R. (2008) (p. Voucher specimen) Voucher cited: Rock s.n. (BISH 455966)
State of Hawaii Hawaiian Islands	Hawaiian Islands	introduced cultivated	Staples, George W./Herbst, Derral/Imada, Clyde T. (2000) (p. 21)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced cultivated	Imada, Clyde T./Staples, George W./Herbst, Derral R. (2008) (p. Voucher specimens) Voucher cited: Tanaka s.n. (BISH 54736)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive cultivated	MacKee, H. S. (1994) (p. 72) Vouchers cited: Blanchon 1364 (NOU), MacKee 39422, MacKee 39886 spontané
Palau Palau (main island group)	Babeldaob Island	introduced cultivated	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 84)
Palau Palau (main island group)	Babeldaob Island	introduced cultivated	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 20)
Palau Palau (main island group)	Koror Island	introduced cultivated	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 79)
Palau Palau (main island group)	Koror Island	introduced cultivated	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 20)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)	introduced	ILDIS Co-ordinating Centre (2009)
Philippines Philippine Islands	Philippine Islands	native	ILDIS Co-ordinating Centre (2009)
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced	St. John, H. (1987) (p. 36) Voucher cited: Ross 11
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced	Fosberg, F. R./Paulay, Gustav/Spencer, T./Oliver, Royce (1989) (p. 13) cf. purpurea. Voucher cited: Paulay, Spencer & Schuster 692 (US)
Samoa Western Samoa Islands	Upolu Island	introduced invasive cultivated	Space, James C./Flynn, Tim (2002) (p. 65)
Solomon Islands Solomon Islands	Solomon Islands	introduced cultivated	Hancock, I. R./Henderson, C. P. (1988) (p. 50)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Costa Rica Costa Rica	Costa Rica (Republic of)	introduced	ILDIS Co-ordinating Centre (2009)
El Salvador El Salvador	El Salvador (Republic of)	introduced	ILDIS Co-ordinating Centre (2009)
Guatemala Guatemala	Guatemala (Republic of)	introduced	ILDIS Co-ordinating Centre (2009)
Indonesia Indonesia	Indonesia (Republic of)	introduced	ILDIS Co-ordinating Centre (2009)
Japan Ryukyu Islands	Ryukyu Islands	introduced	ILDIS Co-ordinating Centre (2009)
Malaysia Malaysia	Malaysia (country of)	introduced	ILDIS Co-ordinating Centre (2009)
Mexico Mexico	Mexico (United Mexican States)	introduced	ILDIS Co-ordinating Centre (2009)
Panama Panama	Panama (Republic of)	introduced	ILDIS Co-ordinating Centre (2009)
Taiwan Taiwan	Taiwan Island	introduced	ILDIS Co-ordinating Centre (2009)
Thailand Thailand	Thailand (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Thailand Thailand	Thailand (Kingdom of)	introduced	ILDIS Co-ordinating Centre (2009)
Vietnam Vietnam	Vietnam (Socialist Republic of)	introduced	ILDIS Co-ordinating Centre (2009)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
La Réunion (France) La Réunion Island	La Réunion Island	introduced cultivated	Lavergne, Christophe (2006) "Cultivé"
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island	introduced	ILDIS Co-ordinating Centre (2009)

Also reported from
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
United States (continental except west coast and Florida) United States (other states)	United States (other states)	introduced	ILDIS Co-ordinating Centre (2009)
United States (continental except west coast and Florida) United States (other states)	USA (Florida)		ILDIS Co-ordinating Centre (2009)

Comments:  Reported weedy in gardens in Hawai‘i (Staples et al., 2000; p. 21). A problem species in Florida.

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

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

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

References:

Bishop Museum (Honolulu). 1954. Voucher specimen #BISH 660545 (Fosberg, F.R. 35609).

Bishop Museum (Honolulu). 1959. Voucher specimen #BISH 14483 (Pillay, S. 11917).

Bishop Museum (Honolulu). 1960. Voucher specimen #BISH 14482 (Pillay, S. 12095).

Bishop Museum (Honolulu). 1966. Voucher specimen #BISH 652631 (Evans, M. 1519).

Bishop Museum (Honolulu). 1986. Voucher specimen #BISH 545495 (Florence, J. 7660).

Bishop Museum (Honolulu). 1997. Voucher specimen #BISH 653520 (Flynn, T. 6294).

Fosberg, F. R./Paulay, Gustav/Spencer, T./Oliver, Royce. 1989. New collections and notes on the plants of Henderson, Pitcairn, Oeno, and Ducie Islands. Atoll Research Bulletin No. 329. Smithsonian Institution, Washington. 18 pp.

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:1-295.

Hancock, I. R./Henderson, C. P. 1988. Flora of the Solomon Islands. Research Bulletin No. 7. Ministry of Agriculture and Lands, Honiara. 203 pp.

ILDIS Co-ordinating Centre. 2009. International Legume Database & Information Service. Online searchable database.

Imada, Clyde T./Staples, George W./Herbst, Derral R. 2008. Annotated checklist of cultivated plants of Hawai‘i (online searchable database).

Lavergne, Christophe. 2006. List des especes exotiques envahissantes a La Reunion. Unpublished manuscript (Excel file). .

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

McCormack, Gerald. 2008. Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga.

Smith, Albert C. 1985. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 3. 758 pp.

Space, James C./Flynn, Tim. 2000. Observations on invasive plant species in American Samoa.  USDA Forest Service, Honolulu. 51 pp.

Space, James C./Flynn, Tim. 2002. Report to the Government of Samoa on invasive plant species of environmental concern. USDA Forest Service, Honolulu. 83 pp.

Space, James C./Lorence, David H./LaRosa, Anne Marie. 2009. Report to the Republic of Palau: 2008 update on Invasive Plant Species. USDA Forest Service, Hilo, Hawai‘i. (In press).

Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar. 2003. Report to the Republic of Palau on invasive plant species of environmental concern. USDA Forest Service, Honolulu. 174 pp.

St. John, H. 1987. An account of the flora of Pitcairn Island with new Pandanus species. Honolulu, 65 pp.

Staples, George W./Herbst, Derral/Imada, Clyde T. 2000. Survey of invasive or potentially invasive cultivated plants in Hawai‘i. Bishop Museum Occasional Papers No. 65. 35 pp.

U.S. Dept. Agr., Agr. Res. Serv. 2009. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Walker, E. H. 1976. Flora of Okinawa and the southern Ryukyu Islands. Smithsonian Institution Press, Washington. 1159 pp.

Welsh, S. L. 1998. Flora Societensis: A summary revision of the flowering plants of the Society Islands. E.P.S. Inc., Orem, Utah. 420 pp.