Pacific Island Ecosystems at Risk (PIER)

  [   PIER species lists  ]   [   PIER home  ]

Hirschfeldia incana
(L.) Lagr.-Foss., Brassicaceae
Click on an image for links to BIGGER PICTURES


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Brassica adpressa Boiss.; Erucastrum incanum (L.) Koch; Sinapis incana L.

Common name(s): [more details]

English: bastard rocket, buchan weed, hairy brassica, hoary mustard, Mediterranean mustard, shortpod mustard, summer mustard

French: hirschfeldie grisâtre, roquette bâtarde

Spanish: jaramago blanco

Habit:  herb

Description:  "Annual to perennial. Hairs stiff, simple, recurved. Stem ± stout, often much-branched, densely hairy below, becoming glabrous above, 30-70-(100) cm tall. Leaves all densely hairy, petiolate. Rosette leaves crowded, 4-10-(30) x 1.5-3-(6) cm; terminal leaflet ovate to oblong, rarely triangular, often with 1-2 rounded lobes at base; lateral lobes oblong to triangular, ± auriculate at base; margins irregularly bluntly serrate to crenate. Stem leaves few, smaller than rosette leaves and with fewer leaflets, bluntly serrate, the uppermost simple, narrow-oblanceolate. Racemes many, obliquely spreading, 30-50 cm tall. Pedicels erect, swollen and narrowly clavate at fruiting, 4-8 mm long. Sepals 2-3 x 0.5-1 mm, oblanceolate. Petals pale yellow, often with dark veins; claw narrow, c. 1/3 as long as limb. Silique glabrous, erect, 6-10 x 1-2 mm; valves 4-6 mm long, 3-veined when immature but veins obscure when mature; beak swollen, 2-4 mm long, (0)-1-(2)-seeded. Seeds c. 1 mm long, (1)-3-5 per locule"  (Webb et al., 1988; p. 423).

Habitat/ecology:  In Hawai‘i, "in dry, disturbed areas and along roadsides in high elevation Sophora dry forest" on the island of Hawai‘i. Also on East Maui in vacant lots, 366 m (1200 ft.) (Lorence et al., 1995; p. 26).

Propagation:  Seed

Native range:  Northern Africa, southern Europe and western Asia; 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
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
cultivated
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 554)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 26)
Vouchers cited: T. Flynn 1289 (PTBG), W.L. Wagner et al. 5236 (BISH), K. R. Wood & S. Perlman 2604 (MO, PTBG), D. Herbst & S. Ishikawa 5169 (BISH), W. L. Wagner & R. Warshauer 4681 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 26)
East Maui. Voucher cited: K. M. Nagata 2563 (BISH)
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
invasive
National Herbarium of New South Wales (2013)
South Australia, Tasmania, Victoria
Naturalised
Australia
Australia (continental)
New South Wales introduced
invasive
National Herbarium of New South Wales (2013)
Naturalised
Australia
Australia (continental)
Queensland introduced
invasive
National Herbarium of New South Wales (2013)
Naturalised
Chile (continental)
Chile
Chile (Republic of) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Japan
Japan
Japan (country) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Honshu
Naturalized
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 183)
Japan
Ryukyu Islands
Ryukyu Islands introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 423)
"Waste land, especially near ports, on railway ballast and roadsides".
United States (west coast)
United States (west coast states)
USA (California) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
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)
United States (other states) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Nevada, Oregon
Naturalized
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized

Additional information:
Additional online information about Hirschfeldia incana is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Hirschfeldia incana as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Hirschfeldia incana may be available from the Germplasm Resources Information Network (GRIN).

References:

Atkinson, Rachel/Sawyer, John. 2011. Naturalized species in the Juan Fernández Archipelago, Chile. Unpublished spreadsheet.

Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido. 2006. Nouveau catalogue de la flore vaculaire de l'archipel Juan Fernández (Chile) [Nuevo catálogo de la flora vacular del Archipélago Juan Fernández (Chile)]. Acta Bot. Gallica 153(4):399-587.

Hafliger, Toni J./Wolf, Matthias. 1988. Dicot weeds, vol. 1. CIBA-GEIGY Ltd., Basle, Switzerland. 335 pp.

Lorence, David H./Flynn, Timothy W./Wagner, Warren L. 1995. Contributions to the flora of Hawai‘i. III. New additions, range extensions, and rediscoveries of flowering plants. In: Evenhuis, Neal L. and Miller, Scott, E., eds. Records of the Hawaii Biological Survey for 1994. Part 1: Articles. Bishop Museum Occasional Papers. 41:19-58.

Mito, Toshikazu/Uesugi, Tetsuro. 2004. Invasive alien species in Japan: the status quo and the new regulation for prevention of their adverse effects. Global Environmental Research 8(2)/2004: 171-191.

National Herbarium of New South Wales. 2013. PlantNet: New South Wales Flora online. The Plant Information Network System of the Botanic Gardens Trust Version 2.0. Online resource.

U.S. Dept. Agr., Agr. Res. Serv. 2013. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. 1988. Flora of New Zealand, Volume IV: Naturalised pteridophytes, gymnosperms, dicotyledons. Botany Division, DSIR, Christchurch. 1365 pp.


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

  [   PIER species lists  ]   [   PIER home  ]

This page was created on 4 MAR 2007 and was last updated on 8 MAY 2013.