(Link ex Spreng.) DC., Asteraceae |
Present on Pacific Islands? yes
Primarily a threat at high elevations? no
Other Latin names: Senecio valerianifolius Link ex Spreng.
Common name(s): [more details]
Chinese: bai jiang ye ju qin |
English: Brazilian fireweed, Ceylon thistle, fireweed, fireweed daisy |
Fijian: co vuka, thovuka |
Kwaraae: asaka mocktaa |
Samoan: fua lele, pua lele, vao lele |
Tongan: fisi puna |
Habit: herb
Description: "Herbs, annual. Stems erect, 50-100 cm tall, simple or branched in upper part, striate, subglabrous. Leaves long petiolate; petiole narrowly winged; blade oblong to elliptic, both surfaces glabrous, pinnately veined, base cuneate, margin irregularly double serrate or pinnatipartite; lobes 12-16, lanceolate, acuminate, serrate to irregularly lobed, or rarely shallowly lobed, apex acute or acuminate; upper leaves similar to median leaves but smaller. Capitula numerous, erect or pendulous, in terminal and upper axillary dense corymbose panicles, ca. 10 x 3 mm, with linear bracteoles. Involucres cylindric-campanulate; phyllaries uniseriate, 12-14 (-16), linear, 7-8 x 0.5-0.75 mm, glabrous or sparsely puberulent, 4- or 5-veined, apically acute or acuminate. Florets numerous, yellowish purplish; outer florets uni- or biseriate, corolla filiform, apically 5-denticulate; central florets minutely tubular-funnelform, 7-8 mm, rather longer and broader than outer ones, 5-denticulate, apically glandular thickened. Style branches with conical appendages. Achenes cylindric, 2.5-3.5 mm, glabrous or puberulent, 10-12-ribbed. Pappus reddish, as long as florets" (Flora of China online).
"Annual herbs 0.5-2.5 m tall, glabrous or pubescent, the hairs spreading. Leaves lanceolate to narrowly oblate, 4-25 cm long, 2-10 cm wide, usually deeply pinnately lobed, margins coarsely dentate or serrate, occasionally merely coarsely dentate or serrate, usually petiolate, petioles 0-8.5 cm long, sometimes winged. Heads erect; involucral bracts 12-14 (-16), 7-8 mm long; corollas yellowish to pale purple; pappus pink to pale purple" (Wagner et al., 1999; p. 314).
Habitat/ecology: In Hawaii, "a rather weedy species generally in relatively wet, disturbed areas, 0-1,400 m" (Wagner et al., 1999; p. 314). In Fiji, "found from near sea level to the highest elevation in Fiji (1,323 m) as an often locally frequent naturalized weed in clearings, dense forest often along streams, and thickets on crests and ridges, and along roadsides" (Smith, 1991; pp. 315-316). "Occasional to common in open, disturbed places, often in montane taro crops" (Whistler, 1988; p. 11). In New Guinea, "a weed of roadsides and cultivation, rarely troublesome in pasture; also in landslips and other naturally-disturbed habitats. From altitudes of about 100 to 2000 m" (Henty & Pritchard, 1975; p. 72). In Tonga, "a plantation and waste-area weed" (Yuncker, 1959; p. 269).
Propagation: Seed
Native range: Mexico to Brazil and Argentina (Wagner et al.. 1999; p. 314). Widespread in Central and South America and the West Indies (Smith, 1991; pp. 315-316).
Presence:
Pacific | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
American Samoa
Manua Islands |
Tau Island |
Whistler, W. A. (1990)
Vouchers cited: Harris 197, Yuncker 9027 |
|
American Samoa
Manua Islands |
Tau Island |
Yuncker, T. G. (1945) (p. 68)
Vouchers cited: Yuncker 9029 (BISH), W. Harris 197 (BISH) |
|
American Samoa
Tutuila Islands |
Tutuila Island |
introduced
invasive |
Setchell, William Albert (1924) (p. 41) |
Australia (Pacific offshore islands)
Norfolk Islands |
Norfolk Island |
introduced
invasive |
Orchard, Anthony E., ed. (1994) (p. 8)
"An uncommon adventive in moist disturbed sites, such as forest clearings. Apparently not so aggressive an invader on the Island as in Australia (N.S.W.) and New Zealand". Vouchers cited: W.R. Sykes NI 189 (CHR), G .Uhe 1187 (K), W.R.Sykes NI 476 (CHR) |
Cook Islands
Southern Cook Islands |
Mangaia Island | McCormack, Gerald (2013) | |
Fiji
Fiji Islands |
Ovalau Island |
introduced
invasive |
Smith, Albert C. (1991) (pp. 315-316)
Voucher cited: DA 1357 |
Fiji
Fiji Islands |
Vanua Levu Island |
introduced
invasive |
Smith, Albert C. (1991) (pp. 315-316)
Vouchers cited: DA 8798, DA 11487, Smith 333 |
Fiji
Fiji Islands |
Viti Levu Island |
introduced
invasive |
Smith, Albert C. (1991) (pp. 315-316)
Vouchers cited: Greenwood 180A, Greenwood 180, Smith 4194, Gibbs 811, DA 7097, DA 14620, DA 3817, Smith 8670, Greenwood 180B, DA 11502, DA 11047, DA 10980, Gillespie 3542, Valentine 23, DA 10609 |
French Polynesia
Marquesas Islands |
Ua Pou (Huapu, Uapou, Uapu) Island |
introduced
invasive |
Lorence, David H./Wagner, Warren L. (2013) |
French Polynesia
Society Islands |
Moorea Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice |
French Polynesia
Society Islands |
Tahiti Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice |
State of Hawaii
Hawaiian Islands |
Hawaii (Big) Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 314) |
State of Hawaii
Hawaiian Islands |
Kahoolawe Island |
introduced
invasive |
Staples, George W./Imada, Clyde T./Herbst, Derral R. (2003) (p. 8)
Voucher cited: L.W. Cuddihy & W.P. Char ESP 358 (BISH) Only plant seen. |
State of Hawaii
Hawaiian Islands |
Kauai Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 314)
Voucher cited: Forbes 534.L (BISH) |
State of Hawaii
Hawaiian Islands |
Lānai Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 314)
Voucher cited: Forbes 534.L (BISH) |
State of Hawaii
Hawaiian Islands |
Maui Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 314) |
State of Hawaii
Hawaiian Islands |
Molokai Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 314) |
State of Hawaii
Hawaiian Islands |
Oahu Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 314) |
Japan (offshore islands)
Ogasawara (Bonin) Islands |
Bonin (Ogasawara) Islands |
introduced
invasive |
Toyoda, Takeshi (2003) (p. 290)
Naturalized |
Japan (offshore islands)
Ogasawara (Bonin) Islands |
Bonin (Ogasawara) Islands |
introduced
|
Kato, Hidetoshi (2007) |
Papua New Guinea
Bougainville Islands |
Bougainville Island | Foreman, D. B. (1971) (p. 37) | |
Papua New Guinea
Papua New Guinea (eastern New Guinea Island) |
Papua New Guinea (eastern New Guinea Island) |
introduced
invasive |
Henty, E. E./Pritchard, G. H. (1975) (p. 73)
Widespread, from altitudes of about 100 to 2000 m. |
Philippines
Philippine Islands |
Philippine Islands |
introduced
invasive |
Merrill, Elmer D. (1923) (p. 617)
In old clearings, etc., at low and medium altitudes, often abundant. |
Samoa
Western Samoa Islands |
Western Samoa Islands | Whistler, W. A. (1988) (p. 11) | |
Solomon Islands
Solomon Islands |
Solomon Islands |
introduced
invasive |
Hancock, I. R./Henderson, C. P. (1988) (p. 72) |
Tonga
Haapai Group |
Tofua Island |
Whistler, W. A. (1992) (p. 8)
Voucher cited: Scarth-Johnson 90, Scarth-Johnson 94 |
|
Tonga
Tonga Islands |
Tonga Islands |
introduced
invasive |
Yuncker, T. G. (1959) (p. 269)
"Throughout Tonga". |
Tonga
Tongatapu Group |
Eua Island |
introduced
invasive |
Yuncker, T. G. (1959) (p. 269)
Voucher cited: Yuncker 15425 |
Tonga
Tongatapu Group |
Tongatapu Island |
Whistler, W. A. (1992) (p. 8)
Voucher cited: Lawrence 228 |
|
Tonga
Tongatapu Group |
Tongatapu Island |
introduced
invasive |
Yuncker, T. G. (1959) (p. 269)
Voucher cited: Yuncker 15153 |
Tonga
Vavau Group |
Late Island |
introduced
|
Sykes, W. R. (1981) (p. 349) |
Pacific Rim | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
Australia
Australia (continental) |
New South Wales |
introduced
invasive |
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized |
Australia
Australia (continental) |
Queensland |
introduced
invasive |
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized |
Central America
Central America (Pacific rim) |
Costa Rica (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Central America
Central America (Pacific rim) |
El Salvador (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Central America
Central America (Pacific rim) |
Guatemala (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Central America
Central America (Pacific rim) |
Honduras (Republic of) | Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 146) | |
Central America
Central America (Pacific rim) |
Nicaragua (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Central America
Central America (Pacific rim) |
Panama (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
China
China |
China (People's Republic of) |
introduced
invasive |
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Roadsides, field margins; ca. 1700 m. Guangdong, Hainan. |
China
China |
Hong Kong |
introduced
invasive |
Wu, Te-lin (2001) (p. 281)
On margin of forests or in wasteland. |
Indonesia
Indonesia |
Indonesia (Republic of) | Waterhouse, D. F. (1993) (p. 65) | |
Japan
Japan |
Japan |
introduced
|
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 190) |
Japan
Ryukyu Islands |
Ryukyu Islands |
introduced
invasive |
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized |
Malaysia
Malaysia |
Malaysia (country of) |
introduced
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Mexico
Mexico |
Mexico (United Mexican States) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
New Zealand
New Zealand |
New Zealand (country) |
introduced
invasive |
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 262)
"Scrubland, grassland, waste places, forest margins, gardens". |
Singapore
Singapore |
Singapore (Republic of) |
introduced
invasive |
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 39)
Naturalised |
South America (Pacific rim)
South America (Pacific rim) |
Colombia |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
South America (Pacific rim)
South America (Pacific rim) |
Ecuador (Republic of) (continental) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
South America (Pacific rim)
South America (Pacific rim) |
Perú (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Taiwan
Taiwan Island |
Taiwan Island |
introduced
invasive |
Ching-I Peng, ed. (2013)
"Fields and roadsides, up to 1,700 m". |
Thailand
Thailand |
Thailand (Kingdom of) | Waterhouse, D. F. (1993) (p. 65) |
Also reported from | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
United States (continental except west coast)
United States (other states) |
United States (other states) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Control: If you know of control methods for Erechtites valerianifolius, please let us know.