| Species | Provider | Further information | Invasive | Status | |
|---|---|---|---|---|---|
| Tribulus terrestris |
 |
Invasive Species Compendium (ISC) | http://www.cabi.org/isc/datasheet/54447 | Unspecified | |
| Typha latifolia |
|
Invasive Species Compendium (ISC) | http://www.cabi.org/isc/datasheet/54297 | Unspecified | Native |
| Vespula germanica |
|
Invasive Species Compendium (ISC) | http://www.cabi.org/isc/datasheet/56667 | Unspecified | Native |
| West Nile virus |
 |
Global Invasive Species Database (GISD) | http://www.issg.org/database/species/ecology.asp?si=304 | Invasive | Cryptogenic |
| Xanthium spinosum |
|
Invasive Species Compendium (ISC) | http://www.cabi.org/isc/datasheet/56863 | Unspecified | Alien - introduced |
| Xiphinema index |
|
Invasive Species Compendium (ISC) | http://www.cabi.org/isc/datasheet/57032 | Unspecified | |
| Ziziphus mauritiana |
|
Invasive Species Compendium (ISC) | http://www.cabi.org/isc/datasheet/57556 | Unspecified | Native |