Pacific Island Ecosystems at Risk (PIER)

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Searsia lancea
(L. f.) F. A. Barkley, Anacardiaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 8 (Go to the risk assessment)

Other Latin names:  Rhus lancea L. f. (basionym); Rhus viminalis Aiton

Common name(s): [more details]

English: African sumac, western karee, willow rhus

Habit:  shrub/tree

Description:  "Trees or shrubs, to 10 m tall; old bark dark gray, fissured and orange beneath; twigs reddish. Leaves evergreen, trifoliate; petioles 25-30 mm long; leaflets subsessile, narrowly lancelolate, entire to slightly serrate, 4-10 cm long, 0.5-1.0 cm wide, entire, leathery, dark shiny green above, pale-green beneath, glabrous; apex acuminate; base narrowly cuneate. Inflorescences open panicles, 2-9 cm long, terminal and axillary; bracts linear-subulate. Flowers to 3 mm long; sepals ovate, glabrous; petals oblong-ovate, greenish yellow, glabrous. Fruit globose, to 5 mm in diameter, tan, resinous, wrinkled" (John L. Anderson, U.S. Bureau of Land Management).

Habitat/ecology:  In the United States, "cultivated as an ornamental in the Sonoran Desert, escaping and naturalized in canyons in the Rincon and Tucson Mts. in Pima County [Arizona]"  (John L. Anderson, U.S. Bureau of Land Management).

Propagation:  Seed, spread by birds.

Native range:  Southern Africa, naturalized elsewhere (GRIN).

Presence:

Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
United States (west coast)
United States (west coast states)
USA (California) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
As Rhus lancea L. f.


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

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This page was created on 25 OCT 2010 and was last updated on 10 NOV 2010.