Research Article |
Corresponding author: Gabriele Galasso ( gabriele.galasso@comune.milano.it ) Academic editor: Lorenzo Peruzzi
© 2023 Gabriele Galasso, Gianniantonio Domina, Carlo Argenti, Enrico Bajona, Enrico Banfi, Davide Barberis, Giulio Barone, Fabrizio Bartolucci, Nello Biscotti, Fabrizio Bonali, Chiara Bonifazio, Daniele Bonsanto, Fabrizio Buldrini, Silvia Cannucci, Alessia Cozzolino, Antonino De Natale, Emanuele Del Guacchio, Emilio Di Gristina, Tiberio Fiaschi, Andrea Lallai, Michele Lonati, Fernando Lucchese, Jacopo Lupoletti, Niccolò Marchi, Riccardo Motti, Ginevra Nota, Antonio Pica, Marco Pittarello, Giovanna Potenza, Giuseppe Ratini, Franco Rota, Francesco Santi, Claudio Santini, Marco Sarigu, Alberto Selvaggi, Marco Simonazzi, Federico M. Tardella, Silvia Tripi, Roberto Vetromile, Lorenzo Lastrucci.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Galasso G, Domina G, Argenti C, Bajona E, Banfi E, Barberis D, Barone G, Bartolucci F, Biscotti N, Bonali F, Bonifazio C, Bonsanto D, Buldrini F, Cannucci S, Cozzolino A, De Natale A, Del Guacchio E, Di Gristina E, Fiaschi T, Lallai A, Lonati M, Lucchese F, Lupoletti J, Marchi N, Motti R, Nota G, Pica A, Pittarello M, Potenza G, Ratini G, Rota F, Santi F, Santini C, Sarigu M, Selvaggi A, Simonazzi M, Tardella FM, Tripi S, Vetromile R, Lastrucci L (2023) Notulae to the Italian alien vascular flora: 15. Italian Botanist 15: 77-89. https://doi.org/10.3897/italianbotanist.15.105794
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In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions for Italy or for Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrections are provided as Suppl. material
Alien species, floristic data, Italy, nomenclature
The text for the new records, exclusions, and confirmations should be submitted electronically to Lorenzo Lastrucci (lorenzo.lastrucci@unifi.it). The corresponding specimen along with its scan or photograph has to be sent to FI Herbarium: Museo di Storia Naturale (Botanica), Sistema Museale di Ateneo, Via G. La Pira 4, 50121 Firenze (Italy). Those texts concerning nomenclatural novelties and typifications (only for accepted names) should be submitted electronically to Gabriele Galasso (gabriele.galasso@comune.milano.it). Each text should be within 1,000 characters (spaces included).
Acer buergerianum subsp. buergerianum (Sapindaceae)
+ (CAS) TAA: Lavis (Trento), loc. Stazione di Lavis (WGS84: 46.147654°N, 11.099471°E), in una aiuola, 212 m, 14 August 2021, M. Simonazzi (FI, ROV). – Casual alien species new for the flora of Trentino-Alto Adige.
A few young individuals (height below 50 cm) were found in an urban flowerbed.
M. Simonazzi
Acer palmatum Thunb. (Sapindaceae)
+ (CAS) TAA: Tenna (Trento), loc. Visintainer, Biotopo “Pizè”, sponda del Torrente Vignola (WGS84: 46.0322870°N, 11.2620333°E), sponda torrentizia, 480 m, 25 April 2022, leg. N. Marchi, det. N. Marchi, M. Simonazzi (FI). – Casual alien species new for the flora of Trentino-Alto Adige.
An individual was found in the wild along the banks of the Vignola creek.
N. Marchi, M. Simonazzi
Acer tataricum subsp. ginnala (Maxim.) Wesm. (Sapindaceae)
+ (CAS) TAA: Levico Terme (Trento), loc. Someari, Biotopo “Le inghiaie”, sponda della roggia “La vena” (WGS84: 46.0006175°N, 11.3176637°E), sponda di roggia al margine del bosco, 436 m, 7 June 2021, leg. N. Marchi, det. M. Simonazzi, N. Marchi (FI, ROV). – Casual alien subspecies new for the flora of Trentino-Alto Adige.
A few individuals were found along the banks of the Vena creek.
N. Marchi, M. Simonazzi
Aesculus hippocastanum L. (Sapindaceae)
+ (CAS) PUG: Vico del Gargano (Foggia), loc. Mastrocianni (WGS84: 41.887860°N, 15.953290°E), margine stradale, 420 m, 29 August 2022, N. Biscotti, D. Bonsanto (FI). – Casual alien species new for the flora of Puglia.
N. Biscotti, D. Bonsanto
Aloë perfoliata L. (Asphodelaceae)
+ (CAS) SIC: Petrosino (Trapani), Torre Sibiliana (WGS84: 37.723575°N, 12.473320°E), arid garrigue, 2 m, 11 May 2022, G. Domina (FI, PAL). – Casual alien species new for the flora of Sicilia.
Some flowering individuals were observed.
E. Di Gristina, G. Barone
Bambusa vulgaris Schrad. ex J.C.Wendl. (Poaceae)
– ITALIA (SAR). – Alien species to be excluded from the flora of Italy (Sardegna).
Based on a review of the available literature, all the naturalized bamboo populations of Sardegna previously attributed to this species (
A. Lallai, M. Sarigu
Bidens sulphurea (Cav.) Sch.Bip. (Asteraceae)
+ (CAS) BAS: Potenza (Potenza), Discesa San Gerardo (WGS84: 40.641315°N, 15.805873°E), bordo strada, 790 m, 15 September 2021, L. Rosati, G. Potenza (FI). – Casual alien species new for the flora of Basilicata.
We observed some flowering individuals.
G. Potenza
Calocedrus decurrens (Torr.) Florin (Cupressaceae)
+ (CAS) EMR: Modena (Modena), Cimitero di San Cataldo, tombe antiche sul lato S presso l’ingresso lato Piazza F. Setti (WGS84: 44.658293°N, 10.909558°E), angolo di terreno incolto coperto d’edera presso il muro di cinta, 35 m, 19 November 2022, F. Buldrini, C. Santini (FI). – Casual alien species new for the flora of Emilia-Romagna.
One individual, probably 3–5 years old (23-cm tall), grows in a shady place at about 40 m from the putative parent plants (four adult ornamental trees in a row).
F. Buldrini, C. Santini
Catalpa bignonioides Walter (Bignoniaceae)
+ (CAS) TOS: Siena (Siena), fiume canalizzato vicino all’area industriale (WGS84: 43.310626°N, 11.359643°E), 213 m, 29 July 2022, leg. T. Fiaschi, R. Fedeli, det. T. Fiaschi, S. Cannucci (FI, SIENA). – Casual alien species new for the flora of Toscana.
This species is similar to Catalpa ovata G.Don and C. speciosa Teas. According to
T. Fiaschi, S. Cannucci
Cedrus atlantica (Endl.) G.Manetti ex Carrière (Pinaceae)
+ (CAS) LIG: Pornassio (Imperia), Colle di Nava, lungo la strada che dalla strada SS28 Nord porta al Forte Centrale (WGS84: 44.083667°N, 7.873605°E), muretto a secco che costeggia la strada, 943 m, 19 September 2022, M. Lonati, G. Nota (FI). – Casual alien species new for the flora of Liguria.
A young individual was found on dry-stone walls along a paved road near the Forte Centrale. Other individuals, about 30–40-cm tall, also grew on the walls of the Forte. These individuals were generated by adult Cedrus atlantica trees cultivated in the surroundings.
M. Lonati, G. Nota
Datura innoxia Mill. (Solanaceae)
– PIE. – Alien species to be excluded from the flora of Piemonte.
This species was reported for Piemonte by
A. Selvaggi, F. Rota
Datura wrightii Regel (Solanaceae)
+ (CAS) VDA: Chambave (Aosta), ambienti ruderali a W della ex stazione ferroviaria (WGS84: 45.74418°N, 7.55635°E), ambiente ruderale, 468 m, 15 August 2022, A. Selvaggi (FI, AO). – Casual alien species new for the flora of Valle d’Aosta.
A. Selvaggi
Digitaria violascens Link (Poaceae)
+ (CAS) LIG: Santo Stefano di Magra (La Spezia), tra Falcinello (fraz. di Sarzana) e Ponzano Superiore (WGS84: 44.159202°N, 9.954352°E), bordo strada, 300 m, 21 September 2019, leg. S. Argenti, C. Argenti, det. C. Argenti, conf. F. Verloove (FI, Herb. C. Argenti). – Casual alien species new for the flora of Liguria.
Several individuals were found.
C. Argenti
Ehrharta erecta Lam. (Poaceae)
+ (CAS) LIG: Santo Stefano al Mare (Imperia), sulla costa (WGS84: 43.837915°N, 7.893002°E), spiaggia, 0 m, 21 March 2022, C. Bonifazio, S. Tripi (FI); Taggia (Imperia), Arma di Taggia, sulla costa (WGS84: 43.830717°N, 7.852751°E), spiaggia, 0 m, 8 April 2022, C. Bonifazio, S. Tripi (FI). – Casual alien species new for the flora of Liguria.
S. Tripi, C. Bonifazio
Eragrostis mexicana subsp. virescens (J.Presl) S.D.Koch & Sánchez Vega (Poaceae)
+ (CAS) BAS: Viggiano (Potenza), Via Valloni 2^ Traversa (WGS84: 40.312842°N, 15.920795°E), a lato strada, 584 m, 20 September 2022, leg. et det. F. Santi, conf. E. Banfi (FI). – Casual alien subspecies new for the flora of Basilicata.
F. Santi
Gazania linearis (Thunb.) Druce (Asteraceae)
+ (CAS) CAM: Centola (Salerno), spiaggia a S di Torre dei Caprioli (WGS84: ca. 40.051801°N, 15.282958°E), spiaggia, 0 m, 17 March 1994, A. De Natale (Herb. A. De Natale No. 2904). – Casual alien species new for the flora of Campania.
According to the key published by Laguna Lumbreraras and Ferrer Gallego (2013), the specimens cited as Gazania rigens (L.) Gaertn. for Cilento by
E. Del Guacchio, A. De Natale
Impatiens parviflora DC. (Balsaminaceae)
+ (NAT) MAR: Arquata del Tronto (Ascoli Piceno), Pescara del Tronto, Parco Nazionale del Gran Sasso e Monti della Laga, lungo la sponda destra del Fiume Tronto (WGS84: 42.74840636°N, 13.27191404°E), megaforbieto ripariale, 660 m, 8 September 2022, F.M. Tardella, R. Pennesi, R. Vetromile (FI, CAME). – Naturalized alien species new for the flora of Marche.
The species can be found sporadically along the banks of the Tronto river.
F.M. Tardella, R. Vetromile
Jasminum nudiflorum Lindl. (Oleaceae)
+ (CAS) PUG: Vico del Gargano (Foggia), centro storico (WGS84: 41.919412°N, 15.920386°E), in sacche di terra su roccia, 442 m, 21 February 2022, D. Bonsanto, N. Biscotti (FI). – Casual alien species new for the flora of Puglia.
D. Bonsanto, N. Biscotti
Oenothera speciosa Nutt. (Onagraceae)
+ (CAS) ABR: Chieti (Chieti), quartiere Chieti Scalo, Via Pescasseroli (WGS84: 42.362654°N, 14.144006°E), incolto al margine della strada, ambiente urbano con vegetazione sinantropica, 38 m, 5 May 2022, A. Pica, J. Lupoletti (FI). – Casual alien species new for the flora of Abruzzo.
The species covered about 30 m2.
A. Pica, J. Lupoletti
Opuntia microdasys (Lehm.) Pfeiff. (Cactaceae)
+ (NAT) UMB: Arrone (Terni), fraz. Casteldilago, rupe inaccessibile sotto il paese (WGS84: 42.578190°N, 12.759101°E), rupe, 235 m, 30 October 2021, F. Lucchese (photo in FI). – Naturalized alien species new for the flora of Umbria.
F. Lucchese, G. Ratini
Opuntia monacantha Haw. (Cactaceae)
+ (CAS) UMB: Arrone (Terni), fraz. Casteldilago, rupe inaccessibile sotto il paese (WGS84: 42.578090°N, 12.759189°E), rupe, 252 m, 30 October 2021, leg. F. Lucchese, det. A. Guiggi (photo in FI). – Casual alien species confirmed for the flora of Umbria.
Opuntia monacantha was previously reported as doubtfully occurring in Umbria (
F. Lucchese, G. Ratini
Opuntia stricta (Haw.) Haw. (Cactaceae)
+ (INV) UMB: Terni (Terni), loc. Le Pisciarelle (WGS84: 42.604104°N, 12.611363°E), pendio pietroso in radura boschiva con leccio e Pinus halepensis, 400 m, 17 October 2022, leg. P. Ratini, det. A. Guiggi (FI). – Invasive alien species new for the flora of Umbria.
Opuntia stricta was observed also in other localities in the province of Terni: Arrone, fraz. Casteldilago (WGS84: 42.578090°N, 12.759189°E); Amelia, fraz. Fornole (WGS84: 42.539353°N, 12.459980°E, and 42.541411°N, 12.465183°E); Amelia, fraz. Sambucetole (WGS84: 42.596905°N, 12.435835°E). This species invades terraces of former olive groves, holm oak clearings, natural cliffs, and artificial escarpments. In the locality upstream of Fornole, about 31 ha are covered by it. In the locality of Le Pisciarelle, it may have hybridized with O. humifusa (Raf.) Raf. with which it shares the same habitat.
F. Lucchese, G. Ratini
Paspalum denticulatum Trin. (Poaceae)
+ (NAT) ITALIA (LOM): Milano (Milano), Largo Cairoli, aiuola attorno al monumento in centro alla piazza (WGS84: 45.468240°N, 9.182434°E), tappeto erboso, 124 m, no exp., 5 July 2021, leg. G. Galasso, det. E. Banfi (MSNM No. 51237 sub P. dilatatum); ibidem, 21 September 2021, leg. G. Galasso, det. E. Banfi (MSNM No. 51238 sub P. dilatatum); ibidem, Via Monte Cimone, spartitraffico alberato (WGS84: 45.450573°N, 9.226346°E), tappeto erboso, 109 m, no exp., 20 November 2022, E. Banfi (FI, MSNM barcode MSNM52201). – Naturalized alien species new for the flora of Italy (Lombardia).
This species is native to central-southern America, and shows a high diversity; it belongs to a group of four taxa, treated as synonyms by
E. Banfi, G. Galasso
Perilla frutescens (L.) Britton (Lamiaceae)
+ (CAS) CAM: Napoli (Napoli), Via M. Pietravalle (WGS84: 40.868711°N, 14.226402°E), bordo strada, 251 m, 21 June 2020, leg. R. Motti, det. A. Cozzolino, R. Motti (FI, PORUN). – Casual alien species new for the flora of Campania.
R. Motti, A. Cozzolino
Petunia axillaris (Lam.) Britton, Sterns & Poggenb. (Solanaceae)
+ (CAS) SIC: Palermo (Palermo), Via Imera (WGS84: 38.117153°N, 13.348883°E), negli interstizi dei marciapiedi, 30 m, 16 July 2021, leg. E. Di Gristina, det. E. Di Gristina, G. Domina (FI). – Casual alien species new for the flora of Sicilia.
Petunia axillaris is an annual herbaceous plant native to temperate southern America, caracterized by a hypocraterimorph white corolla, with a sub-terete tube (
E. Di Gristina, G. Barone
Physalis philadelphica Lam. (Solanaceae)
+ (CAS) ABR: Scafa (Pescara), loc. Decontra (WGS84: 42.239886°N, 14.025695°E), margine stradale nei pressi di una cava di gesso caratterizzato da vegetazione ruderale, 216 m, 16 October 2021, J. Lupoletti, A. Pica (FI). – Casual alien species new for the flora of Abruzzo.
A single specimen was observed.
J. Lupoletti, A. Pica
Ruellia simplex C.Wright (Acanthaceae)
+ (CAS) SIC: Palermo (Palermo), lungo Corso Tukory (WGS84: 38.108403°N, 13.357091°E), aiuola e bordo strada, 30 m, 6 July 2022, E. Bajona (FI, PAL). – Casual alien species new for the flora of Sicilia.
In Sicilia, Ruellia simplex spreads spontaneously also in the Botanical Garden of Palermo, where it grows in some pots and flowerbeds, near the cultivated specimen.
E. Bajona
Saxifraga stolonifera Curtis (Saxifragaceae)
+ (CAS) PIE: Mergozzo (Verbano-Cusio-Ossola), nei pressi di Via Nostrani Celso (WGS84: 45.959391°N, 8.448122°E), terrazzamento incolto e muretti a secco adiacenti alla strada, 218 m, 6 September 2021, M. Pittarello, D. Barberis (FI). – Casual alien species new for the flora of Piemonte.
The species has colonized an area of a few square meters.
M. Pittarello, D. Barberis
Solanum nitidibaccatum Bitter (Solanaceae)
+ (NAT) LOM: Acquanegra Cremonese (Cremona), Via Crotta D’Adda (WGS84: 45.163122°N, 9.887033°E), campo con stoppie di mais, 42 m, no exp, 31 October 2022, F. Bonali (FI, Herb. F. Bonali). – Naturalized alien species new for the flora of Lombardia.
Numerous individuals are present in three contiguous fields.
F. Bonali
Tulbaghia violacea Harv. (Amaryllidaceae)
+ (CAS) LIG: Pietra Ligure (Savona), scogli di retrospiaggia presso il confine con Loano (WGS84: 44.139524°N, 8.269283°E), rupi costiere con accumulo di sabbia, 5 m, no exp., 30 August 2022, G. Galasso (FI, MSNM barcode MSNM52197). – Casual alien species new for the flora of Liguria.
A single small tuft was observed.
G. Galasso, E. Banfi
Nomenclatural, status, and distribution updates according to
G. Galasso, F. Bartolucci
We gratefully acknowledge Pablo P. Ferrer-Gallego who confirmed the identification of Gazania linearis, Alessandro Guiggi who identified the specimens of Opuntia monacantha and O. stricta, Laura Guglielmone and Gianni Repetto for the help in consulting herbariums TO and ALBA respectively, and Maurizio Bovio, Franco Correggia, Daniela Longo and Lorenzo Peruzzi who provided informations on distribution.
Categories concerning the occurrence status of taxa
Data type: species data
Explanation note: 1. Nomenclatural updates; 2. Note updates; 3. Distribution updates; 4. Synonyms, misapplied or included names.