Willd., Alismataceae |
Present on Pacific Islands? yes
Primarily a threat at high elevations? no
Common name(s): [more details]
English: broadleaf arrowhead |
Habit: aquatic herb
Description: "Annual perennial herbs 2-15 (-20) dm tall, arising from stout, tuberous rhizomes. Leaves erect, submerged one, if present, linear and ribbon-like, emersed ones with blades sagittate, lateral lobes as long as terminal one, linear or ovate-deltate, 2-20 cm long, 0.5-12 cm wide, terminal lobe deltate to ovate-deltate or linear, 3-25 cm long, 0.7-35 cm wide, apex acuminate to subobtuse, petioles 20-70 cm long. Flowers unisexual (and the plants monoecious or dioecious), lower flowers pistillate, upper ones staminate, and usually with some perfect flowers in the middle, or rarely all flowers perfect, scapes few, 15-70 (-90) cm long, shorter than or slightly longer than leaves, each with 2-7 verticils of flowers, pedicels 0.5-6 cm long, bracts 2-3 per flower, papery, lanceolate to deltate, 0.5-1 (-1.5) cm long, usually gibbous; sepals ovate, 5-10 mm long; petals white, very broadly elliptic, 1-2 cm long, abruptly narrowed into a claw. Achenes 2.5-4 mm long, dorsal margin winged, beak stout, extending at a right angle from the body, 0.5-1.5 mm long" (Wagner et al., 1999; p. 1355).
Habitat/ecology: In Hawaii, "naturalized in low elevation wetlands, slow streams, and taro paddies" (Wagner et al., 1999; p. 1355).
Propagation: Seed, rhizomes.
Native range: North and Central America (Wagner et al., 1999; p. 1355).
Presence:
Pacific | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
French Polynesia
Marquesas Islands |
Hiva Oa Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
As Sagittaria trifolia C. Linnaeus Naturalisée |
French Polynesia
Marquesas Islands |
Nuku Hiva (Nukahiva) Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
As Sagittaria trifolia C. Linnaeus Naturalisée |
French Polynesia
Society Islands |
Huahine Island |
introduced
|
Fosberg, F. R. (1997) (p. 3) |
French Polynesia
Society Islands |
Tahiti Island |
introduced
|
Fosberg, F. R. (1997) (p. 3) |
French Polynesia
Society Islands |
Tahiti Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
As Sagittaria sagittifolia C. Linnaeus subsp. leucopetala (F.A.W. Miquel) C. Hartog. Voucher cited: J. Florence 4665 (PAP) Naturalisée |
French Polynesia
Austral (Tubuai) Islands |
Raivavae (Raevavae) Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
As Sagittaria trifolia C. Linnaeus Naturalisée |
French Polynesia
Austral (Tubuai) Islands |
Rurutu Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
As Sagittaria trifolia C. Linnaeus Naturalisée |
French Polynesia
Austral (Tubuai) Islands |
Tubuai Island |
introduced
invasive |
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
As Sagittaria trifolia C. Linnaeus Naturalisée |
State of Hawaii
Hawaiian Islands |
Hawaii (Big) Island |
introduced
invasive |
Imada, Clyde T./Staples, George W./Herbst, Derral R. (2000) (p. 9)
Voucher cited: C. Imada 99-28 (BISH) Weed in a flooded taro paddy. |
State of Hawaii
Hawaiian Islands |
Kauai Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1355) |
State of Hawaii
Hawaiian Islands |
Maui Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1355) |
State of Hawaii
Hawaiian Islands |
Oahu Island |
introduced
invasive |
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1355) |
Philippines
Philippine Islands |
Philippine Islands |
Waterhouse, D. F. (1993) (p. 68)
Sagittaria trifolia (=Sagittaria latifolia var. leucopetala) |
Pacific Rim | |||
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
British Columbia (province of Canada)
Province of British Columbia |
Canada (British Columbia) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Cambodia
Cambodia |
Cambodia (Kingdom of) |
Waterhouse, D. F. (1993) (p. 68)
Sagittaria trifolia (=Sagittaria latifolia var. leucopetala) |
|
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) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Central America
Central America (Pacific rim) |
Nicaragua (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Indonesia
Indonesia |
Indonesia (Republic of) |
Waterhouse, D. F. (1993) (p. 68)
Sagittaria trifolia (=Sagittaria latifolia var. leucopetala) |
|
Malaysia
Malaysia |
Malaysia (country of) |
Waterhouse, D. F. (1993) (p. 68)
Sagittaria trifolia (=Sagittaria latifolia var. leucopetala) |
|
Singapore
Singapore |
Singapore (Republic of) |
introduced
cultivated |
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 76)
Cultivated only |
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) |
Thailand
Thailand |
Thailand (Kingdom of) |
Waterhouse, D. F. (1993) (p. 68)
Sagittaria trifolia (=Sagittaria latifolia var. leucopetala) |
|
United States (west coast)
United States (west coast states) |
USA (California) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2013) |
Vietnam
Vietnam |
Vietnam (Socialist Republic of) |
Waterhouse, D. F. (1993) (p. 68)
Sagittaria trifolia (=Sagittaria latifolia var. leucopetala) |
Control: If you know of control methods for Sagittaria latifolia, please let us know.