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R.Br., Brassicaceae |
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Present on Pacific Islands? yes
Threat only at high elevations? no
Other Latin names: Rorippa nasturtium-aquaticum (L.) Hayek
Common name(s): [more details]
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English: watercress |
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French: cresson, cresson d'eau, cresson de fontaine |
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Hawaiian: lēkō |
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Spanish: berro, berro común, berro de agua, berros |
Habit: herb
Description: "Perennial aquatic or semiaquatic herb, prostrate, glabrous. Leaves pinnately compound; leaflets usually 3-7, ovate to broadly oblong, to 2 inches x 1 inch, terminal leaflet usually larger than laterals. Flower petals white, to 0.15 inch long. Fruit narrowly linear, flattened, 0.4-0.6 inches long, 0.09-0.12 inches wide. Seeds in 2 rows per cell, reddish brown, surface with 25-50 reticulations on each side: (Staples & Herbst, 2005).
"An aquatic, perennial herb with a creeping rhizome. The stems are hollow, angular, 10-60 cm long, rooting at nodes and then ascending or floating; the petals are white; and the siliques are 1-2 cm long" (Smith, 1981; pp. 709-710).
Habitat/ecology: In New Caledonia, "Le cresson de fontaine, assez rarement naturalsé aux bords des ruisseaux à courant faible." (MacKee, 1994; p. 45).
Propagation: Seed
Native range: "Indigenous in Europe and western Asia, now cultivated and often naturalized in many other parts of the world" (Smith, 1981; pp. 709-710).
Presence:
| Pacific | |||
|
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
|
Fiji
Fiji Islands |
Fiji Islands |
introduced
invasive cultivated |
Smith, Albert C. (1981) (pp. 709-710)
Infrequently naturalized. |
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Guam
Guam Island |
Guam Island |
introduced
invasive cultivated |
Stone, Benjamin C. (1970) (p. 288)
Naturalized |
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Guam
Guam Island |
Guam Island |
introduced
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Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) |
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New Caledonia
New Caledonia Archipelago |
Île Grande Terre |
introduced
invasive cultivated |
MacKee, H. S. (1994) (p. 45)
Vouchers cited: Däniker 2864, MacKee 8077 |
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Philippines
Philippine Islands |
Philippine Islands | Hafliger, Toni J./Wolf, Matthias (1988) (p. 186) | |
| 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) |
Australia (continental) | Hafliger, Toni J./Wolf, Matthias (1988) (p. 186) | |
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China
China |
China (People's Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2007) |
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Indonesia
Indonesia |
Indonesia (Republic of) | Hafliger, Toni J./Wolf, Matthias (1988) (p. 186) | |
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Japan
Japan |
Japan (country) | Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 246) | |
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Mexico
Mexico |
Mexico (United Mexican States) | Hafliger, Toni J./Wolf, Matthias (1988) (p. 186) | |
| Indian Ocean | |||
|
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
|
La Réunion (France)
La Réunion Island |
La Réunion Island |
introduced
invasive cultivated |
Lavergne, Christophe (2006)
"Cultivé/naturalisé" |
Comments: Naturalized and more or less invasive in La Réunion per Christophe Lavergne, pers. com.
Additional information:
Photos and additional information from Missouri Plants.
Additional online information about Nasturtium officinale is available from the Hawaiian Ecosystems at Risk project (HEAR).
Taxonomic information about Nasturtium officinale may be available from the Germplasm Resources Information Network (GRIN).
References:
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:1-295.
Hafliger, Toni J./Wolf, Matthias. 1988. Dicot weeds, vol. 1. CIBA-GEIGY Ltd., Basle, Switzerland. 335 pp.
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.
Lavergne, Christophe. 2006. List des especes exotiques envahissantes a La Reunion. Unpublished manuscript (Excel file). .
MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.
Smith, Albert C. 1981. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 2. 810 pp.
Staples, George W./Herbst, Derral R. 2005. A tropical garden flora: plants cultivated in the Hawaiian Islands and other tropical places. Bishop Museum Press, Honolulu. 908 pp.
Stone, Benjamin C. 1970. The flora of Guam. Micronesica 6:1-659.
U.S. Dept. Agr., Agr. Res. Serv. 2007. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.