(L. f.) F. A. Barkley, Anacardiaceae
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
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).
Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
United States (west coast)
United States (west coast states)
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
As Rhus lancea L. f.
Control: If you know of control methods for Searsia lancea, please let us know.