Pacific Island Ecosystems at Risk (PIER)

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Rubus sieboldii
Blume, Rosaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 10 (Go to the risk assessment)

Common name(s): [more details]

English: Molucca raspberry

Habit:  shrub

Description:  "Robust, rhizomatous shrubs; stems somewhat scandent, stout, elongate, with scattered prickles with elongate bases and moderately to densely tomentose.  Leaves simple, coriaceous, broadly ovate to suborbicular, 6.5-22 cm long, 5-18 cm wide, palmately 5-nerved at base, upper surface with impressed veins, sparsely tomentose when young, glabrate with age, lower surface with conspicuous and somewhat raised veins, densely white to yellowish brown tomentose, also midvein and some lateral veins usually with prickles, margins irregularly sinuate-toothed to somewhat lobed, apex rounded, base subcordate, petioles 2-6 cm long, covered with prickles and tomentose.  Flowers subsessile, 1 to several in very short, dense, corymbose inflorescences; sepals ovate to elliptic, ca. 12 mm long, densely tomentose, margins toothed or laciniate; petals white, suborbicular, ca. 15 mm long.  Fruit red, sweet" (Wagner et al., 1999; p. 1110).

Habitat/ecology:  In Hawai‘i, "cultivated and sparingly naturalized in disturbed areas, ca. 100 m, in Lāwa‘i Valley" (Wagner et al., 1999; p. 1110).

Propagation:  Fruits spread by birds and rodents.

Native range:  Japan, southern China and Okinawa.

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
Hawai‘i (Big) Island introduced
invasive
Parker, James L./Parsons, Bobby (2012) (p. 72)
Recommended for control. Voucher cited: J. Parker & R. Parsons BIED152 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1110)
Sparingly naturalized.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Japan
Japan
Japan (country) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Ryukyu Islands
Ryukyu Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)

Control: 

Physical: Isolated plants may be grubbed out, but any remaining roots will sprout.

Chemical: Systemic herbicides.


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

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This page was created on 28 AUG 2002 and was last updated on 31 MAY 2011.