Pacific Island Ecosystems at Risk (PIER)

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Impatiens hawkeri
W. Bull, Balsaminaceae
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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)

Other Latin names:  Impatiens herzogii K. Schum.; Impatiens linearifolia Warb.; Impatiens schlechteri Warb.

Common name(s): [more details]

English: New Guinea impatiens

Habit:  herb

Description:  "Herb 18-36 inches tall.  Leaves in whorls of 3-7; petioles 0.5-2.5 inches long; blades lanceolate, elliptic, or oblanceolate, usually 2-4 x 0.75-1.33 inches, green, red, bronze, purplish or variously variegated, base ± wedge-shaped, margins shallowly toothed, apex pointed. Flowers solitary; peduncle absent, pedicels 1.5-5 inches long; lateral sepals tailed, corolla ± flat, 1.25-2 inches in diameter, red, orange, magenta, white, pink, or purple, petal apexes grooved to ± deeply notched, spur curved, 1.25-2.5 inches long; ovary glabrous.  Fruit spindle-shaped, 0.7-1.33 inches long, glabrous"  (Staples & Herbst, 2005; p 172).

Habitat/ecology:  In Hawaii, both lower, warmer elevations and in cooler uplands (Staples & Herbst, 2005; p. 172).

Propagation:  Seed

Native range:  Papua New Guinea and the Solomon Islands; also cultivated (GRIN).  New Guinea, the Solomon Islands and New Ireland (Staples & Herbst, 2005; p. 172).

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
Hawaiian Islands introduced
cultivated
Staples, George W./Herbst, Derral R. (2005) (p. 172)
New Guinea (Indonesia and Papua New Guinea)
New Guinea Island
New Guinea Island native
Staples, George W./Herbst, Derral R. (2005) (p. 172)
Papua New Guinea
Bismarck Archipelago
New Ireland Island native
Staples, George W./Herbst, Derral R. (2005) (p. 172)
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)
Solomon Islands
Solomon Islands
Solomon Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
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)
Australia (continental) introduced
Randall, R. P. (2007) (p. 256)


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

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This page was created on 23 MAR 2013 and was last updated on 1 APR 2013.