Allamanda blanchetii A.DC., Apocynaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 6 (Go to the risk assessment)

Other Latin names:  Allamanda violacea Gardner & Fielding

Common name(s): [more details]

English: purple allamanda

Habit:  shrub

Description:  "Shrub or scrambler 6-15 feet high, suckering from roots; branchlets pubescent.  Leaves in whorls of 3-5, sessile; blades narrowly elliptic, 1.75-4.5 x 0.7-2.2 inches, pubescent above, underside pilose, especially on main veins.  Flower sepals narrowly elliptic, 0.65-0.8 x 0.25-0.4 inches; corolla broadly funnel-shaped, 2.5-3.5 inches long, limb 2-2.5 inches in diameter, mauve"  (Staples & Herbst, 2005; p. 118).

"Erect or weakly climbing.  Young branchlets fairy.  Leaves 8-12 cm, in whorls of usually 4, oblong or obovate-oblong, abruptly acuminate, down above, more densely so beneath.  Calyx pubescent, corolla 6-9 cm long x 5-6 cm across at limb, rose-purple, darker in throat, tube not basally swollen"  (Huxley, 1992; vol. 1, p. 107).

"Differs from Allamanda cathartica in being less scandent with hirsute stems and purple-mauve flowers"  (Howard, 1989;  p. 100).

Habitat/ecology:  (no habitat/ecology info known by PIER)

Propagation:  Seed

Native range:  Brazil (Staples & Herbst, 2005; p. 118).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Cook Islands Southern Cook Islands	Mangaia Island	introduced cultivated	McCormack, Gerald (2013)
Fiji Fiji Islands	Vanua Levu Island	introduced cultivated	Smith, Albert C. (1988) (p. 102) As Allamanda violacea Gardner, synonym Allamanda blanchetii
Fiji Fiji Islands	Viti Levu Island	introduced cultivated	Smith, Albert C. (1988) (p. 102) As Allamanda violacea Gardner, synonym Allamanda blanchetii
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced cultivated	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced cultivated	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced cultivated	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced cultivated	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Society Islands	Tahiti Island	introduced cultivated	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 2795 (PAP). "Ornementale assez rare à Tahiti". Cultivée
French Polynesia Austral (Tubuai) Islands	Rapa Island	introduced cultivated	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Cultivée
Guam Guam Island	Guam Island	introduced	Raulerson, L. (2006) (p. 55) As Allamanda violacea Gardner & Fielding, a similar species.
State of Hawaii Hawaiian Islands	Hawaiian Islands	introduced cultivated	Staples, George W./Herbst, Derral R. (2005) (p. 118)
State of Hawaii Hawaiian Islands	O‘ahu Island		Bishop Museum (U.S.A. Hawaii. Honolulu.) (1911) (voucher ID: BISH 23569) Taxon name on voucher: Allamanda blanchetii A.DC.
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced cultivated	Vander Velde, Nancy (2003) (p. 64) "Planted ornamental climbing shrub"
Marshall Islands Ratak Chain	Mili (Mile) Atoll	introduced cultivated	Vander Velde, Nancy/Vander Velde, Brian (2010) (p. A9) Rare; decorative in private garden, not in good health. Part way down runway, Mili.
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced cultivated	MacKee, H. S. (1994) (p. 15) As Allamanda violacea C. Gardner & Fielding, a synonymous or similar species. Voucher cited: MacKee 45800
Palau Palau (Belau ) (main island group)	Palau Islands (main island group)		Lorence, David H./Flynn, Tim (2010) (p. 20)

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)	Queensland	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Singapore Singapore	Singapore (Republic of)	introduced cultivated	Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 12) Cultivated only

Control:  If you know of control methods for Allamanda blanchetii, please let us know.