Table 1. Checklist of non-native vascular plants in highland and mountain areas of Iceland.
First record–year of the first record of the species within highland areas, year of first record in Iceland was given in brackets; Last record–year of the last record of the species within highland areas; Naturalization status given for highland areas, status in Iceland (Wasowicz, Przedpelska-Wasowicz & Kristinsson, 2013) was given in brackets; Life form–assigned according to (Raunkiær, 1935); Origin–geographic origin of the species; N–total number of examined records.
| Species | First record | Last record | Naturalization status | Life form | Origin | N | |
|---|---|---|---|---|---|---|---|
| 1 | Alnus viridis ssp. sinuata | 2005 (1996) | 2005 | CAS (NAT) | N | NAm, Asi | 2 |
| 2 | Alopecurus pratensis | 1963 (1902) | 2007 | NAT (NAT) | H | Eu, Asi | 15 |
| 3 | Avenula pubescens | 1978 (1937) | 1978 | CAS (NAT) | H | Eu, Asi | 1 |
| 4 | Claytonia sibirica | 2004 (2004) | 2004 | CAS (CAS) | H | Asi, NAm | 1 |
| 5 | Deschampsia cespitosa subsp. beringensis | 1996 (1986) | 2012 | NAT (NAT) | H | NAm, Asi | 23 |
| 6 | Lamium amplexicaule | 1988 (1893) | 1988 | CAS (NAT) | T | Eu | 1 |
| 7 | Lappula squarrosa | 1888 (1888) | 1888 | CAS (CAS) | H | Eu, Asi | 1 |
| 8 | Lepidotheca suaveolens | 1969 (1902) | 1999 | CAS (NAT) | T | Eu, NAm, Asi | 3 |
| 9 | Lolium perenne | 1981 (1909) | 1981 | CAS (CAS) | H | Eu, Asi | 1 |
| 10 | Lupinus nootkatensis | 1980 (1967) | 2014 | INV (INV) | H | NAm | 44 |
| 11 | Myosotis scorpioides | 1978 (1929) | 1980 | CAS (NAT) | H | Eu, Asi | 2 |
| 12 | Phleum pratense | 1935 (1887) | 2010 | NAT (NAT) | H | Eu | 22 |
| 13 | Rheum rhabarbarum | 1996 (1912) | 1996 | CAS (CAS) | G | cult | 1 |
| 14 | Salix alaxensis | 2011 (1998) | 2011 | NAT (NAT) | P | NAm | 1 |
| 15 | Sinapis arvensis | 1937 (1892) | 1937 | CAS (CAS) | T | Eu | 1 |
| 16 | Stellaria graminea | 1946 (1861) | 2000 | CAS (NAT) | H | Eu | 5 |
Abbreviations:
CAS, casual; NAT, naturalized; INV, invasive; G, geophyte; H, hemicryptophyte; T, therophyte; N, nano-phanerophytes; P, phanerophytes; Eu, Europe; Asi, Asia; NAm, North America; cult, cultivated taxon.