Pacific Island Ecosystems at Risk (PIER)

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Ligustrum japonicum
Thunb., Oleaceae
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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:  Ligustrum coriaceum Carrière

Common name(s): [more details]

English: Japanese privet, Japanese wax-leaf privet, wax-leaf privet

Spanish: ligustrino

Habit:  shrub

Description:  "Evergreen shrub 10-15 feet tall, usually glabrous.  Leaf petioles 0.2-0.4 inches long; blades elliptic or ovate-elliptic, 1.25-3.25 inches long, 0.6-2 inches wide, ±leathery, base acute or slightly rounded, apex ±obtuse, veins indistinct, inflorescence ±openly pyramid-shaped, 2-6 inches tall, glabrous or minutely hairy when young.  Flowers creamy white, fragrant; calyx tiny, cup-shaped, entire; corolla tube longer than lobes, anthers projecting; ovary rounded, style 0.15 inches long.  Fruit ellipsoid, 0.28-0.3 inches long, blue-black"  (Staples & Herbst, 2005; p. 441).

Habitat/ecology:  Privets are extremely aggressive and can form dense, impenetrable thickets that crowd out desirable plants. They are prolific seed producers.  "Japanese privet is a tough, hardy shrub that thrives with little care.  Ideal conditions include a fertile, well-drained soil with a pH of 6.0-6.5, ample water, and full sun, but it grows well even in coral sand with a pH as high as 8.0 and has good tolerance for salt spray and partial shade"  (Staples & Herbst, 2005; p. 442).

Propagation:  Seed

Native range:  "Southern Japan, southern Korea, the Ryukyu Islands, Hong Kong, Guangdong Province in China and Taiwan"  (Staples & Herbst, 2005; p. 441).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
cultivated
Atkinson, Rachel/Sawyer, John (2011)
Guam
Guam Island
Guam Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 209)
State of Hawaii
Hawaiian Islands
Kaua‘i Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (1990) (voucher ID: BISH 588893)
Taxon name on voucher: Ligustrum japonicum Thunb.
State of Hawaii
Hawaiian Islands
O‘ahu Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (1934) (voucher ID: BISH 669066)
Taxon name on voucher: Ligustrum japonicum Thunb.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
China
China
China (People's Republic of) native
Staples, George W./Herbst, Derral R. (2005) (p. 441)
Guangdong Province
Japan
Japan
Japan (country) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Honshu, Kyushu, Shikoku
Japan
Ryukyu Islands
Ryukyu Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
South Korea
South Korea
South Korea (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
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)
United States (other states)
United States (other states) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)

Control:  Information on control of Ligustrum spp. from the Bugwood Wiki.


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

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This page was created on 15 DEC 2008 and was last updated on 25 JUN 2009.