Pacific Island Ecosystems at Risk (PIER)

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Ipomoea pes-tigridis
L., Convolvulaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: hu zhang teng

English: morning-glory

Habit:  vine

Description:  "Vines; the stems slender or stout, trailing or less commonly twining, covered with long spreading yellow bristly trichomes; annual.  Leaves palmately 7-9-lobed, often almost to the base of the blade, to 10.5 cm long and 13 cm wide in outline, the lobes narrowly oval to obovate, narrowed above and below, subacute apically, 1.6-7 cm long, 1-2.8 cm wide, thinly pubescent to strigose on both surfaces.  Inflorescences of few-flowered, bracteate heads on pubescent peduncles up to 14 cm long, the bracts foliaceous, oblong to oblong-lanceolate, pubescent outside, the outer to 5 cm long and 6 mm wide, the inner narrower and shorter.  Flowers subsessile; sepals lanceolate to narrowly lanceolate, 8-12 mm long, pubescent; corolla white, pink or purple, if colored then with a darker throat, funnelform, 3.5-5 cm long.  Fruits capsular, brown, ovoid, 8-9 mm long, glabrous; seeds black, 4 mm long, grey pubescent" (Dassanayake, 1981; p. 336).

Habitat/ecology:  In Sri Lanka, "plants occur in disturbed sites such as grasslands, bushlands, cultivated ground and roadsides"  (Dassanayake, 1981; p. 336).

Propagation:  Seed

Native range:  Tropical Africa and Asia, now found in most tropical countries (Smith, 2002; pp. 48-49).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
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. (2013)
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands native
Merrill, Elmer D. (1923) (p. 367)
In open grasslands and waste places at low and medium altitudes.
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)
Northern Territory native
invasive
Smith, Nicholas M. (2002) (pp. 48-49)
Australia
Australia (continental)
Queensland introduced
invasive
Smith, Nicholas M. (2002) (pp. 48-49)
Cambodia
Cambodia
Cambodia (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Thickets, roadsides, seashores; 0-400 m. Guangdong, S Guangxi, Hainan, S Yunnan.
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 187)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Thickets, roadsides, seashores; 0-400 m.
Thailand
Thailand
Thailand (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island introduced
invasive
Rivers, Julie (2004) (p. 3)


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

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This page was created on 29 MAR 2005 and was last updated on 18 OCT 2006.