Pacific Island Ecosystems at Risk (PIER)

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Sisymbrium erysimoides
Desf., Brassicaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: smooth mustard

Habit:  herb

Description:  "Annual herbs. Stems erect, 20-50 cm high, covered with simple, spreading hairs. Basal leaves petiolate, lyrate-pinnatifid with 3-4 pairs of oblong, dentate, lobes, not rosette-forming; cauline leaves shortly petiolate, lyrate-pinnatifid. Flowers small and half the size of those of S. irio. Calyx somewhat spreading, petals ca 2 x 1 mm, narrowly spathulate, pale yellow. Fruiting pedicels more or less spreading, siliqua erect-spreading, 20-35 mm long, ca 1 mm broad, usually broader at base than apex, horizontal, glabrous. Valves thin, more or less torulose, 1-nerved. Style very short" (Daoud, 1985; pp. 101-102).

Habitat/ecology:  Sandy soil (Daoud, 1985; pp. 101-102).

Propagation:  Seed

Native range:  Mediterranean Europe, Iraq, Syria, Palestine, Jordan, Egypt, Arabia, Caucasus, Iran, Pakistan, North Africa, Macaronesia (Daoud, 1985; pp. 101-102).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
New Caledonia
New Caledonia
New Caledonia Islands   Swarbrick, John T. (1997) (p. 97)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
Tassin, Jacques (2005)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
MacKee, H. S. (1994) (p. 45)
Vouchers cited: Administration pénitentiaire 152, Schmid 702 (NOU)
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) introduced
Daoud, H. S. (1985) (pp. 101-102)
New Zealand
New Zealand
New Zealand (country) introduced
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 445)
Collected once in a railway yard in Christchurch, present status unknown.


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

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This page was created on 22 OCT 2002 and was last updated on 25 OCT 2006.