New surveys of non-native taxa in the island of Madeira, Portugal
The flora of the archipelagos of Madeira and Selvagens comprises 1 268 taxa of vascular plants species or subspecies. Of these approximately 442 taxa are introduced. Surveys of the flora in the Island of Madeira (Portugal) between September 2021 and May 2022 have identified 32 non-native plant taxa with many reported on the island for the first time.
Table 1. Thirty-two non-native plant taxa from Madeira.
Species | Family | Origin | Status for Madeira |
Aptenia × vascosilvae | Aizoaceae | - | First record |
Calystegia sylvatica | Convolvulaceae | Europe | First record |
Cardamine occulta | Brassicaceae | Asia | First record |
Casuarina cunninghamiana | Casuarinaceae | Australia | First record |
Casuarina glauca | Casuarinaceae | Australia | First record |
Convolvulus farinosus | Convolvulaceae | East & South Africa | First record |
Cotoneaster pannosus | Rosaceae | China | First record |
Diplotaxis tenuifolia | Brassicaceae | Europe, West Asia, North Africa | - |
Epilobium ciliatum | Onagraceae | Widespread | First record |
Erigeron floribundus | Asteraceae | Americas | First record |
Euphorbia hypericifolia | Euphorbiaceae | Americas | - |
Euphorbia maculata | Euphorbiaceae | North America | First record |
Euphorbia serpens | Euphorbiaceae | Americas | First record |
Hedychium coronarium | Zingiberaceae | Asia | First record |
Kalanchoe × houghtonii | Crassulaceae | - | First record |
Lemna minuta | Araceae | Americas | First record |
Lepidium oblongum | Brassicaceae | North and Central America | First record |
Malephora purpurocrocea | Aizoaceae | South Africa | First record |
Metrosideros excelsa | Myrtaceae | New Zealand | First record |
Oenothera glazioviana | Onagraceae | - | First record |
Oxalis dillenii | Oxalidaceae | North America | First record |
Phytolacca icosandra | Phytolaccaceae | Americas | First record |
Pistia stratiotes* | Araceae | South America | First record |
Rumex palustris | Polygonaceae | Europe | First record |
Schinus terebinthifolia | Anacardiaceae | South America | First record |
Sisyrinchium micranthum | Iridaceae | North America | - |
Soliva sessilis | Asteraceae | South America | First record |
Sphagneticola trilobata | Asteraceae | Americas | First record |
Tithonia diversifolia | Asteraceae | North and Central America | First record |
Verbena incompta | Verbenaceae | South America | First record |
Verbena litoralis | Verbenaceae | South America | First record |
Youngia japonica | Asteraceae | Asia | - |
* EPPO A2 List of pests recommended for regulation as quarantine pests.
Sources
Verloove F, Goncalves Silva JJ (2022) New records of alien vascular plants from the island of Madeira (Portugal). Boletim do Museu de História Natural do Funchal. Art. 365, 27-54.