Pacific Island Ecosystems at Risk (PIER)

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Gamochaeta purpurea
(L.) Cabr., Asteraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Gnaphalium purpureum L.

Common name(s): [more details]

Chinese: he guan shu qu cao

English: purple cudweed, spoon-leaf cudweed

Spanish: puscala

Habit:  herb

Description:  "Erect annual or biennial herbs 1-4 (-10) dm tall, sparsely to moderately woolly.  Lower leaves spatulate to oblanceolate, 2-5 (-9) cm long, 0.3-2 cm wide, gradually becoming reduced up the stem, uppermost leaves oblanceolate to oblong or even linear, upper surface glabrate or sparsely white tomentose, lower surface densely white tomentose.  Heads in terminal, spike-like, sometimes interrupted clusters, sometimes subtended by a few small leafy bracts; involucral bracts pale brown or purple, woolly pubescent at base; pappus bristles connate to form a ring at base, deciduous as a unit"  (Wagner et al., 1999; pp. 321, 1861).

Description from Flora of China online.
Description from Flora of North America online.

Habitat/ecology:  In Hawai‘i, "naturalized and relatively common in dry to wet, disturbed habitats, especially along roadsides, in pastures, and on open lava, from near sea level up to 2,100 m" (Wagner et al., 1999; p. 321).  In Tonga, "uncommon in disturbed places" (Whistler, 1988; p. 11).

Propagation:  Seed

Native range:  North and South America; naturalized elsewhere (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia (Pacific offshore islands)
Lord Howe Island
Lord Howe Island introduced
invasive
Orchard, Anthony E., ed. (1994) (p. 18)
"A relatively common introduced weed from America, now widespread in warm temperate regions". Vouchers cited: M.M.J. van Balgooy 1024 (CANB), P.S. Green 1552 (A, K), J. Pickard 2658 (NSW), R.D. Hoogland 8819 (CANB, NSW)
Australia (Pacific offshore islands)
Norfolk Islands
Norfolk Island introduced
invasive
Orchard, Anthony E., ed. (1994) (p. 8)
"A relatively common introduced weed from America, now widespread in warm temperate regions". Vouchers cited: W.R. Sykes NI 204 (CHR), J.D. McComish 61A (NSW). J.D. McComish 247 (NSW)
Ecuador (Galápagos Islands)
Fernandina Group
Fernandina Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Alcedo, Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Sierra Negra, Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Santa Cruz Group
Santa Cruz Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Santiago Group
Santiago Island possibly introduced
invasive
Charles Darwin Foundation (2008)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 321, 1861)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Alford, Mac H. (2012) (p. 2)
Vouchers cited: Fosberg 10198 (BISH), Herat et al. 670 (BISH), Hosaka 2320 (BISH), Neal & Hartt 674a (BISH), Neal & Hartt 709 (BISH), Newell 407 (BISH), Newell 409 (BISH), Newell 427 (BISH), Newell 953 (BISH), Newell 959 (BISH), Newell 962 (BISH), Newell 972 (BISH), von Loben Sels 596 (UC)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 321, 1861)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Alford, Mac H. (2012) (p. 2)
Vouchers cited: Degener 27272 (BISH), Forbes 2298M (BISH), Harrison 35 (BISH), Harrison 518 (BISH), Higashino & Holt 9014 (BISH), Higashino & Holt 9220 (BISH), Oppenheimer H30108 (BISH)
State of Hawaii
Hawaiian Islands
Moloka‘i, Mokapu Islet introduced
invasive
Alford, Mac H. (2012) (p. 2)
Voucher cited: Wood et al. 8323 (PTBG)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 321, 1861)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Alford, Mac H. (2012) (p. 2)
Vouchers cited: Cranwell et al. 2551 (BISH), Degener 18452 (BISH, MO), Fosberg 9647 (BISH)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 321, 1861)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Alford, Mac H. (2012) (p. 2)
Vouchers cited: Egler 37-39 (BISH, US), Fosberg & Dunn 10948 (BISH), Kondo s.n. (BISH), Pearsall s.n. (BISH), Rock 927 (BISH)
Tonga
Tongatapu Group
Tongatapu Island introduced
Whistler, W. A. (1988) (p. 11)
Voucher cited: Hurlimann 98
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
National Herbarium of New South Wales (2013)
Naturalised
Canada (British Colombia)
Province of British Columbia
Canada (British Columbia) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Ecuador (Mainland)
Ecuador
Ecuador (Republic of) (continental) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 190)
As Gnaphalium purpureum L.
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) (pp. 239-240)
As Gnaphalium purpureum L. var. purpureum and var. ustulatum (Nutt.) J. Boivin. "Scrubland, swamps."
Nicaragua
Nicaragua
Nicaragua (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Perú
Perú
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island introduced
invasive
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
"Waste fields at low elevations".
United States (west coast)
United States (west coast states)
USA (Oregon) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (Washington) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Canada (except British Colombia)
Canada
Canada (country) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
United States (other states) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)


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

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This page was created on 30 AUG 2002 and was last updated on 5 MAY 2013.