Pacific Island Ecosystems at Risk (PIER)

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Pinus strobus
L., Pinaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  yes

Risk assessment results:  High risk, score: 9 (Go to the risk assessment).

Common name(s): [more details]

Chinese: bei mei qiao song

English: eastern white pine, northern white pine, soft pine, strobus pine, Weymouth pine, white pine

French: pin à aiguilles fines, pin blanc, pin blanc d'Amérique, pin blanc de l'Est, pin de Lord Weymouth, pin Weymouth

Japanese: sutoroobu matsu, sutoroobusu matsu

Spanish: pimobete blanco, pino blanco Americano, pino de Quebec, pino de Weymouth

Habit:  tree

Description:  "Trees to 67 m; trunk to 1.8m in diameter, straight; crown conic, becoming rounded to flattened. Bark gray-brown, deeply furrowed, with long, irregularly rectangular, scaly plates. Branches whorled, spreading-upswept; twigs slender, pale red-brown, glabrous or pale puberulent, aging gray, ± smooth. Buds ovoid-cylindric, light red-brown, 0.4-0.5 cm, slightly resinous. Leaves 5 per fascicle, spreading to ascending, persisting 2-3 years, 6-10 cm x 0.7-1 mm, straight, slightly twisted, pliant, deep green to blue-green, pale stomatal lines evident only on adaxial surfaces, margins finely serrulate, apex abruptly acute to short-acuminate; sheath 1-1.5 cm, shed early. Pollen cones ellipsoid, 10-15 mm, yellow. Seed cones maturing in 2 years, shedding seeds and falling soon thereafter, clustered, pendent, symmetric, cylindric to lance-cylindric or ellipsoid-cylindric before opening, ellipsoid-cylindric to cylindric or lance-cylindric when open, (7-) 8-20 cm, gray-brown to pale brown, with purple or gray tints, stalks 2-3 cm; apophyses slightly raised, resinous at tip; umbo terminal, low. Seeds compressed, broadly obliquely obovoid; body 5-6 mm, red-brown mottled with black; wing 1.8-2.5 cm, pale brown"  (Flora of North America online).

Habitat/ecology:  In North America (native), "mesic to dry sites; 0-1500 m"  (Flora of North America online).  In New Zealand, "naturalised in scrub and modified forest, an occasional escape from cultivation.  Strobus pine is mostly cultivated in state forests, especially in the Rotorua area"  (Webb et al., 1988; p. 58).

Propagation:  Seed

Native range:  Central and eastern United States and Canada; cultivated elsewhere (GRIN).

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) introduced
cultivated
Conn, Barry J./Damas, Kipiro Q. (2013)
Planted in Morobe Province but not successful as a Plantation species.
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) introduced
cultivated
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Beijing Shi, Jiangsu (Nanjing Shi), Jiangxi (Lu Shan), Liaoning
New Zealand
New Zealand
New Zealand (country) introduced
invasive
cultivated
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 58)
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) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (continental except west coast)
United States (other states)
United States (other states) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)


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

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This page was created on 2 MAR 2012 and was last updated on 12 MAR 2012.