New records of exotic plants in Corse (FR)
New exotic plant species have been recorded in Corse. Some of them have exhibited an invasive behavior in some places of the world, and are listed below with their origin, status in the Global Compendium of Weeds, situation in Corse, and occurrence in the EPPO region according to the DAISIE database and EPPO records:
|
Species and family
|
Origin
|
Global Compendium of Weeds*
|
Situation in Corse
|
Occurrence in the EPPO region
|
|
Arctotheca calendula (Asteraceae)
|
Af.
|
AW, EW, NW, SW, W
|
Escaped from garden, naturalizing in the oriental plain.
|
ES, FR, IT (Sardinia, Sicily), PT (incl. Azores)
|
|
Bothriochloa barbinodis (Poaceae)
|
N-Am.
|
/
|
Several plants over 250 m transect, probably introduced accidentally.
|
FR
|
|
Chamaerops humilis (Arecaceae)
|
N-Af., S-Eur.
|
W
|
One plant observed near Cap Corse, subspontaneous.
|
IT, PT (Azores)
|
|
Euphorbia cyparissias (Euphorbiaceae)
|
Eurasia
|
AW, EW, NW, SW, W
|
Large population that is in the process of naturalization, near Cap Corse.
|
DK, ES, FR, GB, IE, LV, LT, NO, SE, etc.
|
|
Leontodon
hispidus subsp. hispidus (Asteraceae) |
Eurasia
|
AW, EW, W
|
Found in Col de Prato, probably introduced with agricultural material (seeds, hay, livestock, etc.)
|
Widespread (native)
|
|
Physalis peruviana (Solanaceae)
|
S-Am.
|
AW, EW, W
|
Near a water course in the Marana plain, probably escaped from the disposal of its fruits. Will probably not establish.
|
ES, GB, IT, MT, PT (Azores, Madeira)
|
Soliva sessilis (Asteraceae) |
S-Am.
|
AW, EW, NW, W
|
Abundant in Biguglia.
|
FR, ES, PT (incl. Azores),
|
* Abbreviations for the Global Compendium of Weeds column:
AW: agricultural weed; EW: environmental weed; NW: noxious weed; SW: sleeper weed; W: weed
In addition, Ludwigia peploides subsp. montevidensis (Onagraceae, EPPO List of Invasive Alien Plants) has been found in another site, near the golf course of Lezza where it is cultivated for ornamental purposes. The species grows in the river, and has not outcompeted the existing vegetation, probably because the water course is only temporary, not allowing the species to exhibit invasive behavior.
Sources
A Global Compendium of Weeds. http://www.hear.org/gcw/alpha_select_gcw.htm
Delivering Invasive Alien Species Inventories for Europe (DAISIE) Database. http://www.europe-aliens.org/
Jeanmonod D ; Schlüssel A (Eds) (2010) Notes and contributions on Corsican flora, XXIII. Candollea 65, 267-290.