Pacific Island Ecosystems at Risk (PIER)

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Populus nigra
L., Salicaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  yes

Other Latin names:  Populus italica (Münchh.) Moench; Populus nigra var. italica Münchh.; Populus nigra var. pyramidalis (Rozier) Spach; Populus pyramidalis Rozier; Populus thevestina Dode

Common name(s): [more details]

Chinese: hei yang

English: black cottonwood, black poplar, Lombardy poplar

French: peuplier noir

Habit:  tree

Description:  "Trees to 30 m tall; bark dull gray, furrowed when older; crown broadly ovoid. Branchlets yellowish, terete, glabrous. Buds russet, ovoid, very viscid. Petiole ca. as long as or longer than leaf blade, laterally flattened, glabrous; leaf blade rhombic, rhombic-ovoid, or deltoid, 5-10 x 4-8 cm, thinly leathery, abaxially greenish, adaxially green, base cuneate or broadly cuneate, rarely truncate, margin crenate-serrate, ciliate, apex long acuminate. Flower buds outwardly curved at apex. Male catkin 5-6 cm; rachis glabrous; bracts brownish, 3-4 mm, membranous, laciniate. Male flower: stamens 15-30; anthers purplish red. Fruiting catkin 5-10 cm. Female flower: ovary ovoid, glabrous, stipitate; stigmas 2. Capsule ovoid, 5-7 x 3-4 mm, 2-valved, stipitate"  (Flora of China online).

Habitat/ecology:  In China (native):  "Along rivers"  (Flora of China online).  In New Zealand, "planted extensively throughout all settled areas; its erect, narrow habit making it especially useful as a windbreak. It often spreads from original plantings because portions of the stem are easily detached and will grow in moist ground"  (Webb et al., 1988; p. 1158).

Propagation:  Seed

Native range:  Europe, northern Africa, western Asia; widely cultivated and naturalized (GRIN).

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
Atkinson, Rachel/Sawyer, John (2011)
As Populus pyramidalis Salisb.
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 556)
As Populus pyramidalis Salisb.
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
invasive
cultivated
Csurhes, S./Edwards, R. (1998) (p. 189)
Dense suckering stands in wetlands near Perth; localised populations in Victoria.
Australia
Australia (continental)
New South Wales introduced
invasive
National Herbarium of New South Wales (2013)
Canada (British Colombia)
Province of British Columbia
Canada (British Columbia) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Xinjiang, cultivated elsewhere
New Zealand
New Zealand
New Zealand (country) introduced
invasive
cultivated
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 1158)
United States (west coast)
United States (west coast states)
USA (Oregon) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (Washington) introduced
U.S. Dept. Agr., Nat. Res. Cons. 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
Canada (except British Colombia)
Canada
Canada (country) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
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)


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This page was created on 12 FEB 2011 and was last updated on 17 MAR 2012.