Blumea laciniata (Roxb.) DC., Asteraceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Conyza laciniata Roxb.

Common name(s): [more details]

English: cutleaf false oxtongue

Habit:  herb

Description:  "Malodorous herbs 2-18 dm tall from a taproot; stems erect to ascending, usually branched from the base, glabrate to pilose.  Leaves oblanceolate, obovate to elliptic in outline, sometimes lyrate, 4.5-36.5 cm long, 0.8-21 cm wide, the lower ones pinnately lobed, sometimes with a large terminal lobe, becoming progressively less lobed above, margins irregularly dentate, the lower ones petiolate, petioles 1-6 cm long, sessile above.  Heads in large, terminal, open panicles; involucral bracts often purple-tinged, reflexed at maturity, 1-8 mm long, pilose; receptacle sparsely pilose; corollas yellow, those of perfect florets 5-lobed, 4-5 mm long, those of marginal pistillate florets 2-3-lobed, 3.5-4.5 mm long.  Achenes brown, ribbed, ca. 4 mm long" (Wagner et al., 1999; p. 283).

Habitat/ecology:  In Hawai‘i, "sparingly naturalized usually in low elevation, disturbed sites" (Wagner et al., 1999; p. 283).

Propagation:  Seed

Native range:  "India to New Guinea and the Solomon Islands" (Wagner et al., 1999; p. 283).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Saipan Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 284) Blumea sinuata (Lour.) Merr.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Tinian Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 284) Blumea sinuata (Lour.) Merr.
Federated States of Micronesia Kosrae Island	Kosrae Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 284) Blumea sinuata (Lour.) Merr.
French Polynesia Society Islands	Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll	introduced invasive	Sachet, M.-H. (1983) (p. 35) Blumea sinuata (Lour.) Merr.; voucher cited: Sachet 945a (US)
Guam Guam Island	Guam Island	introduced	Stone, Benjamin C. (1970) (p. 588)
Guam Guam Island	Guam Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 284) Blumea sinuata (Lour.) Merr.
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 283)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 283) Voucher cited: Degener 5286 (BISH)
New Guinea (Indonesia and Papua New Guinea) New Guinea Island	New Guinea Island	native	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 283)
Palau Palau (main island group)	Babeldaob Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 284) Blumea sinuata (Lour.) Merr.
Philippines Philippine Islands	Philippine Islands		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 48)
Solomon Islands Solomon Islands	Solomon Islands	native	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 283)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Indonesia Indonesia	Indonesia (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 48)

Additional information:
Additional online information about Blumea laciniata is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Blumea laciniata as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Blumea laciniata may be available from the Germplasm Resources Information Network (GRIN).

Other Latin names:  Conyza laciniata Roxb.

References:

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:1-295.

Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp.

Sachet, M.-H. 1983. Natural history of Mopelia Atoll, Society Islands. Smithsonian Institution, Washington. Atoll Reserch Bulletin 274. 37 pp.

Stone, Benjamin C. 1970. The flora of Guam. Micronesica 6:1-659.

U.S. Dept. Agr., Nat. Res. Cons. Serv. 2009. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. 1999. Manual of the flowering plants of Hawaii. Revised edition. Bernice P. Bishop Museum special publication. University of Hawai‘i Press/Bishop Museum Press, Honolulu. 1919 pp. (two volumes).