Pacific Island Ecosystems at Risk (PIER)

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Euphorbia graminea
Jacq., Euphorbiaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: grassleaf spurge

Fijian: wa tumbua

Habit:  herb

Description:  "Annual or perennial herbs; stems up to 6 dm long, glabrous.  Leaves green, reduced floral leaves occasionally white, alternate below, opposite or verticillate above, broadly ovate to lanceolate-ovate, blades 2-7 cm long, 0.2-3 cm wide, glabrous or with a few scattered hairs, margins entire, apex obtuse to acute, base rounded to acute, petioles up to 3 cm long, stipules minute and gland-like.  Cyathia in open terminal cymes; involucre 0.8-1.3 mm high, glabrous, gland 2-4, green, appendages petaloid, white, oblong, 0.6-1 mm long.  Capsules nearly globose, 1.5-2 mm long, glabrous.  Seeds gray, ovoid, 1.6-1.8 mm long, tuberculate, deeply pitted, ecarunculate"  (Wagner et al., 1999; pp. 618-619).

Habitat/ecology:  (no habitat/ecology info known by PIER)

Propagation:  Seed

Native range:  Northern Mexico to Colombia and Venezuela (Wagner et al., 1999; p. 619).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Ecuador (Galápagos Islands)
Isabela Group
Isabela Island introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Sierra Negra, Isabela Island introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
San Cristóbal Group
San Cristóbal Island introduced
invasive
Charles Darwin Foundation (2008)
Fiji
Fiji Islands
Ovalau Island introduced
invasive
Smith, Albert C. (1991) (p. 44)
Voucher cited: Seemann 329
Fiji
Fiji Islands
Vanua Levu Island introduced
invasive
Smith, Albert C. (1991) (p. 44)
Voucher cited: DA 12916
Fiji
Fiji Islands
Viti Levu Island introduced
invasive
Smith, Albert C. (1991) (p. 44)
Voucher cited: DA 2711
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 619)
Voucher cited: Char et al. 78.094 (BISH)
Palau
Palau (Belau ) (main island group)
Angaur (Ngeaur) Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau
Palau (Belau ) (main island group)
Ngercheu Island introduced
invasive
Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 8)
Carp Resort. Voucher: Lorence 9855 (PTBG, BNM, BISH, NY, US)
Palau
Palau (Belau ) (main island group)
Ngercheu Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2008) (voucher ID: PTBG 148)
Taxon name on voucher: Euphorbia graminea Jacq.
Palau
Palau (Belau ) (main island group)
Palau Islands (main island group) introduced
Fosberg, F. R./Otobed, D./Sachet, M.-H./Oliver, R. L./Powell, D. A./Canfield, J. E. (1980) (p. 26)
Present on Angaur per voucher Canfield 155 (PTBG)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Colombia
Colombia
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Costa Rica
Costa Rica
Costa Rica (Republic of) 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)
El Salvador
El Salvador
El Salvador (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Guatemala
Guatemala
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Honduras
Honduras
Honduras (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Nicaragua
Nicaragua
Nicaragua (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Panama
Panama
Panama (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)
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)
USA (Florida) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)


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This page was created on 10 APR 2008 and was last updated on 13 APR 2008.