New xenophytes from La Palma (Canary Islands, Spain), with emphasis on naturalized and (potentially) invasive species.

Abstract

New xeNophytes from GraN CaNaria (CaNary islaNds, spaiN), with emphasis oN Naturalized aNd (poteNtially) iNvasive speCies.— Recent fieldwork in Gran Canaria yielded several interesting new records of non-native vascular plants. Agave attenuata , Antigonon leptopus, Atriplex nummularia, Cascabela thevetia, Cenchrus echinatus, Cuscuta campestris, Diplachne fusca subsp. uninervia, Diplotaxis tenuifolia, Dysphania anthelmintica (hitherto confused with D. ambrosioides), Eclipta prostrata, Euphorbia pulcherrima, Fagopyrum esculentum, Gossypium barbadense, Lablab purpureus, Lemna minuta, Opuntia leucotricha, Passiflora edulis , Pennisetum glaucum, Phaseolus acutifolius, Pluchea carolinensis, Prosopis juliflora , Salvia microphylla, Schinus terebinthifolius, Senna spectabilis, Solanum chrysotrichum, Tecoma stans, Tipuana tipu, Urochloa mutica, U. plantaginea and Washingtonia robusta are reported for the first time from the Canary Islands, while Alopecurus myosuroides, Amaranthus blitoides, Bothriochloa ischaemum var. songarica, Cardamine flexuosa subsp. debilis, Heliotropium curassavicum, Leonotis nepetifolia, Medicago lupulina, Parkinsonia aculeata, Physalis peruviana, Phytolacca americana and Turnera ulmifolia are new to the flora of the island of Gran Canaria. Finally, both Paspalum vaginatum and P. distichum and Cortaderia selloana are confirmed from Gran Canaria.