Research Article |
Corresponding author: Gabriele Galasso ( gabriele.galasso@comune.milano.it ) Academic editor: Lorenzo Peruzzi
© 2023 Gabriele Galasso, Gianniantonio Domina, Michele Adorni, Claudia Angiolini, Lorenzo Baccheschi, Gianluigi Bacchetta, Giulio Barone, Fabrizio Bartolucci, Giacomo Calvia, Sergio Costantini, Alba Cuena-Lombraña, Giuseppe De Fine, Emanuele Del Guacchio, Emilio Di Gristina, Emanuele Fanfarillo, Tiberio Fiaschi, Mauro Fois, Valentina L. A. Laface, Andrea Lallai, Michele Lonati, Jacopo Lupoletti, Leonardo M. Manti, Francesco Mascia, Giacomo Mei, Ginevra Nota, Nicola Olivieri, Nicodemo G. Passalacqua, Antonio Pica, Lorenzo Pinzani, Silvia Pirani, Lina Podda, Filippo Prosser, Simone Ravetto Enri, Alessandro Ruggero, Marco Sarigu, Adriano Stinca, 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, Adorni M, Angiolini C, Baccheschi L, Bacchetta G, Barone G, Bartolucci F, Calvia G, Costantini S, Cuena-Lombraña A, De Fine G, Del Guacchio E, Di Gristina E, Fanfarillo E, Fiaschi T, Fois M, Laface VLA, Lallai A, Lonati M, Lupoletti J, Manti LM, Mascia F, Mei G, Nota G, Olivieri N, Passalacqua NG, Pica A, Pinzani L, Pirani S, Podda L, Prosser F, Ravetto Enri S, Ruggero A, Sarigu M, Stinca A, Lastrucci L (2023) Notulae to the Italian alien vascular flora: 16. Italian Botanist 16: 73-87. https://doi.org/10.3897/italianbotanist.16.115302
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In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records and status changes from casual to naturalized for Italy or for Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrections are provided as supplementary material.
Alien species, floristic data, Italy, nomenclature
The text for the new records, status changes from casual to naturalized or invasive, 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 negundo L. (Sapindaceae)
+ (NAT) SIC: Palermo (Palermo), Piazza D. Dolci (WGS84: 38.114604°N, 13.350172°E), negli interstizi dei marciapiedi, 32 m, 31 May 2023, E. Di Gristina (FI, SAF No. 100119). – Naturalized alien species new for the flora of Sicilia.
Several young individuals have been found in the interstices of the sidewalks. Other plants have been recorded in the city center and residential areas of Palermo (Via C. Lascaris, Via P. Ranzano, Via Marco Polo, Via Contessa Adelasia, and Via Ausonia).
E. Di Gristina, G. Barone
Achillea filipendulina Lam. (Asteraceae)
+ (CAS) TOS: Cortona (Arezzo), loc. Riccio (WGS84: 43.222485°N, 12.003922°E), fossi al bordo della strada, 276 m, 8 June 2022, leg. L. Baccheschi, det. L. Baccheschi, C. Angiolini (FI). – Casual alien species new for the flora of Toscana.
L. Baccheschi, C. Angiolini
Alternanthera pungens Kunth (Amaranthaceae)
+ (CAS) SAR: Cagliari (Cagliari), Pineta di Su Siccu, zona Bonaria (WGS84: 39.206061°N, 9.124077°E), spontaneizzata nei pressi di alcuni esemplari di Washingtonia robusta, 0 m, 25 November 2022, S. Costantini, G. Bacchetta (FI, CAG). – Casual alien species new for the flora of Sardegna.
About ten flowering individuals occur spontaneously in a meadow, occupying an area of approximately 100 m2. The species was probably accidentally introduced with garden soil.
S. Costantini, G. Bacchetta
Anredera cordifolia (Ten.) Steenis (Basellaceae)
+ (NAT) ABR: Chieti (Chieti), loc. Tricalle (WGS84: 42.367821°N, 14.170778°E), margine stradale, 228 m, 10 June 2021, A. Pica, J. Lupoletti (FI). – Status change from casual to naturalized alien for the flora of Abruzzo.
In Abruzzo, Anredera cordifolia is reported as a casual alien for the provinces of Chieti and L’Aquila (
A. Pica, J. Lupoletti
Campanula poscharskyana Degen (Campanulaceae)
+ (NAT) PIE: Cellio con Breia (Vercelli), fraz. Breia, presso la Chiesa di San Giovanni (WGS84: 45.764462°N, 8.307049°E), muretto a secco, 807 m, 23 June 2023, M. Lonati, G. Nota (FI). – Status change from casual to naturalized alien for the flora of Piemonte.
In Piemonte, this species was first recorded in 2020 as a casual alien in the province of Torino (
M. Lonati, G. Nota
Celtis occidentalis L. (Cannabaceae)
+ (NAT) LOM: Milano (Milano), Via del Ricordo, Cimitero dismesso di Crescenzago (WGS84: 45.509488°N, 9.239759°E), boscaglia di neoformazione, 127 m, no exp., 5 May 2023, G. Galasso (MSNM barcodes MSNM52449, MSNM52450); ibidem (WGS84: 45.509196°N, 9.239834°E), boscaglia di neoformazione, 127 m, no exp., 4 June 2023, G. Galasso (FI, MSNM barcode MSNM52551). – Status change from casual to naturalized alien for the flora of Lombardia.
Inside the Crescenzago Cemetery, decommissioned and abandoned in the 1960s, Celtis occidentalis forms an uneven-aged newly formed forest of ca. 4,200 m2 with regularly fruiting plants.
G. Galasso
Cryptomeria japonica (L.f.) D.Don (Cupressaceae)
+ (CAS) CAL: Condofuri (Reggio Calabria), loc. Scafi (WGS84: 38.031610°N, 15.873680°E), impianto di Pinus sp. pl. percorso dal fuoco, 1079 m, 9 November 2022, leg. L.M. Manti, det. V.L.A. Laface, L.M. Manti, C.M. Musarella, G. Spampinato (FI, REGGIO). – Casual alien species new for the flora of Calabria.
The observed individuals derived from seeds of mature plants in the nearby area, used in a garden border for wind protection.
L.M. Manti, V.L.A. Laface
Elaeagnus pungens Thunb. (Elaeagnaceae)
+ (CAS) MAR: Osimo (Ancona), loc. Santo Stefano (WGS84: 43.514864°N, 13.459450°E), vegetazione pioniera in gully erosion morphology (profonda morfologia di incisione dovuta a forte erosione superficiale) in area agricola, 143 m, 16 October 2019, leg. G. Mei, det. G. Mei, A. Stinca (FI, Herb. G. Mei). – Casual alien species new for the flora of Marche.
G. Mei, A. Stinca
Gazania rigens (L.) Gaertn. (Asteraceae)
+ (CAS) MAR: Grottammare (Ascoli Piceno), Lungomare della Repubblica (WGS84: 42.988611°N, 13.871602°E), margine di aiuola presso il litorale, ca. 3 m, 6 August 2022, N. Olivieri (FI). – Casual alien species new for the flora of Marche.
N. Olivieri
Glandularia hybrida (Groenland & Rümpler) G.L.Nesom & Pruski (Verbenaceae)
+ (CAS) CAL: Cirò (Crotone), loc. Palombello, lungo la mulattiera a ca. 700 m dalla strada SP10 (WGS84: 39.372540°N, 17.049235°E), margine di campi, substrato argilloso, 115 m, 4 July 2022, leg. G. De Fine, det. N.G. Passalacqua (FI). – Casual alien species new for the flora of Calabria.
N.G. Passalacqua, G. De Fine
Hesperocyparis glabra (Sudw.) Bartel (Cupressaceae)
+ (NAT) PIE: Torino (Torino), Parco della Maddalena, sentiero a ovest del Faro della Vittoria (WGS84: 45.031151°N, 7.720302°E), bosco artificiale di conifere, 697 m, 26 December 2022, S. Pirani, S. Ravetto Enri (FI). – Naturalized alien species new for the flora of Piemonte.
The Parco della Rimembranza, commonly knowns as Parco della Maddalena, is an artificial plantation dating from the 1920s mainly composed of alien conifers, many of which are successfully reproducing. Some young Hesperocyparis glabra trees were observed in a dense group of individuals with varying heights, some of which also carrying mature cones.
S. Pirani, S. Ravetto Enri
Jasminum nudiflorum Lindl. (Oleaceae)
+ (CAS) TOS: Fiesole (Firenze), loc. Vincigliata, sotto il castello nei pressi del Parco Avventura (WGS84: 47.792868°N, 11.312394°E), bosco termofilo, 210 m, 12 March 2022, L. Pinzani (FI, Herb. L. Pinzani). – Casual alien species new for the flora of Toscana.
L. Pinzani
Kalanchoë × houghtonii D.B.Ward (Crassulaceae)
+ (NAT) SAR: Pula (Cagliari), loc. Santa Margherita, Via Flumendosa (WGS84: 38.956650°N, 8.966953°E), margini stradali e cunette presso il litorale, depositi alluvionali poligenici, 5 m, 30 September 2023, A. Lallai, M. Sarigu (FI, CAG). – Status change from casual to naturalized alien for the flora of Sardegna.
In Sardegna, Kalanchoë × houghtonii was introduced as ornamental a long time ago and reported as a casual alien since 2012 (
A. Lallai, M. Sarigu
Lantana camara subsp. camara (Verbenaceae)
+ (CAS) TOS: Siena (Siena), Via G. Gigli (WGS84: 43.314299°N, 11.342025°E), margine stradale, 278 m, 12 September 2022, T. Fiaschi, E. Fanfarillo (FI, SIENA). – Casual alien subspecies new for the flora of Toscana.
T. Fiaschi, E. Fanfarillo
Lonicera fragrantissima Lindl. & Paxton (Caprifoliaceae)
+ (CAS) LOM: Cassano Magnago (Varese), vasche di laminazione dei torrenti Rile e Tenore (WGS84: 45.64159°N, 8.83220°E), boscaglia ripariale, 240 m, 27 May 2022, M. Adorni (FI). – Casual alien species new for the flora of Lombardia.
Only two individuals were found.
M. Adorni
Lupinus albus subsp. albus (Fabaceae)
+ (NAT) SIC: Cefalù (Palermo), C.da San Biagio (WGS84: 38.003835°N, 14.005445°E), uncultivated land, 340 m, 1 May 2023, leg. G. Domina, det. G. Domina, E. Di Gristina, G. Barone (FI, SAF No. 100135). – Status change from casual to naturalized alien for the flora of Italy (Sicilia).
Lupinus albus subsp. albus, actually considered a casual alien (
E. Di Gristina, G. Barone
Mazus pumilus (Burm.f.) Steenis (Mazaceae)
+ (NAT) TAA: Trento (Trento), nel parcheggio di Trento Expo (CFCE: 9932/2) (WGS84: 46.063807°N, 11.116756°E), selciato con bolognini, due gruppi di ca. 1 m2 ciascuno, 192 m, 23 May 2021, F. Prosser (FI, ROV No. 80110). – Naturalized alien species new for the flora of Trentino-Alto Adige.
Mazus pumilus was found also in Trento (Piazza Duomo, WGS84: 46.067121°N, 11.121309°E, abundant, 5 June 2022), Arco (WGS84: 45.916275°N, 10.879655°E, in one point, 21 May 2023), and in the square of Villa Lagarina (WGS84: 45.917141°N, 11.030945°E, abundant, 25 June 2023).
F. Prosser
Nicotiana tabacum L. (Solanaceae)
+ (CAS) ABR: Rocca San Giovanni (Chieti), loc. Piano dei Marchi (WGS84: 42.279444°N, 14.482222°E), bordo di canale asciutto nei pressi di una pineta di impianto artificiale, ca. 105 m, 3 September 2022, N. Olivieri (FI). – Casual alien species new for the flora of Abruzzo.
Only one individual of the species, close to flowering was found. The area is partially occupied by an artificial forest of Pinus halepensis subsp. halepensis, which was affected by a fire in August 2021.
N. Olivieri
Parthenocissus tricuspidata (Siebold & Zucc.) Planch. (Vitaceae)
+ (CAS) SAR: Cagliari (Cagliari), Asse Mediano (WGS84: 39.240395°N, 9.118457°E), margini stradali, 21 m, 2 September 2022, M. Fois, A. Cuena-Lombraña (FI, CAG). – Casual alien species new for the flora of Sardegna.
M. Fois, A. Cuena-Lombraña
Phyllostachys aurea Carrière ex Rivière & C.Rivière (Poaceae)
+ (NAT) SAR: Oschiri (Sassari), Rizzolu ‘e Curadore in loc. Pegurone (WGS84: 40.794427°N, 9.050850°E), lungo le sponde del torrente, 277 m, 16 October 2022, G. Calvia, A. Ruggero (FI, CAG). – Naturalized alien species new for the flora of Sardegna.
In Sardegna, this species has been confused with Bambusa vulgaris Schrad. ex J.C.Wendl., which was reported in several works (
G. Calvia, A. Ruggero
Plumbago auriculata Lam. (Plumbaginaceae)
+ (NAT) CAM: Napoli (Napoli), Centro Direzionale, sottopassaggio di Viale della Costituzione (WGS84: 40.857025°N, 14.284956°E), base dei muri in cemento armato ai margini del piano stradale, in ambiente ombroso e stagionalmente umido, 15 September 2022, E. Del Guacchio (FI, NAP). – Status change from casual to naturalized alien for the flora of Campania.
The species has been reported as an alien for a long time in Campania and is now widespread, even in scarcely disturbed environments (
E. Del Guacchio, G. Galasso
Portulaca umbraticola Kunth (Portulacaceae)
+ (CAS) MAR: Grottammare (Ascoli Piceno), Lungomare della Repubblica (WGS84: 42.988611°N, 13.871388°E), base di fioriera in cemento, presso il litorale, ca. 3 m, 6 August 2022, N. Olivieri (FI). – Casual alien species new for the flora of Marche.
N. Olivieri
Sedum multiceps Coss. & Durieu (Crassulaceae)
+ (CAS) ABR: Teramo (Teramo), Via A. De Gasperi (WGS84: 42.662777°N, 13.708055°E), fessure di un muro in cemento presso la strada, ca. 251 m, 21 January 2023, N. Olivieri (FI). – Casual alien species new for the flora of Abruzzo.
N. Olivieri
Sparaxis bulbifera (L.) Ker Gawl. (Iridaceae)
+ (NAT) ITALIA (SIC): Cefalù (Palermo), Gibilmanna, C.da Colombo (WGS84: 38.002785°N, 14.025698°E), frutteto tradizionale, 590 m, 30 April 2023, G. Domina (FI, SAF No. 100116). – Status change from casual to naturalized alien for the flora of Italy; naturalized alien species new for the flora of Sicilia.
A population of several hundred individuals of Sparaxis bulbifera was found among orchards and on uncultivated land.
E. Di Gristina, G. Barone
Tagetes minuta L. (Asteraceae)
+ (CAS) SAR: Sanluri (Sud Sardegna), loc. Riu Piras (WGS84: 39.570372°N, 8.909956°E), margini stradali, 146 m, 2 June 2022, F. Mascia, L. Podda, G. Bacchetta (FI, CAG). – Casual alien species new for the flora of Sardegna.
F. Mascia, L. Podda
Zantedeschia aethiopica (L.) Spreng. (Araceae)
+ (NAT) MOL: Campomarino (Campobasso), presso la strada SS16 “Adriatica” (WGS84: 41.959166°N, 15.036666°E), area acquitrinosa disturbata, ca. 3 m, 12 April 2023, N. Olivieri (FI). – Naturalized alien species new for the flora of Molise.
Many individuals of the species flower and bear fruit and are, therefore, actively propagating. The infructescences, formed by orange berries that probably attract birds, tend to bend with their peduncle downwards as they ripen, perhaps allowing seeds to be disseminated also by water.
N. Olivieri
Nomenclatural, status, and distribution updates according to
G. Galasso, F. Bartolucci
We gratefully acknowledge Acta Plantarum staff, Alessandro Alessandrini, Nicola M.G. Ardenghi, Giovanni Astuti, Enrico Banfi, Alessandro Bellino, Riccardo Guarino, Leonardo Gubellini, Duilio Iamonico, Daniela Longo, Lorenzo Peruzzi, Lorenzo Pinzani, and Alberto Selvaggi who provided taxonomic and distribution information.
Categories concerning the occurrence status of taxa
Data type: pdf
Explanation note: 1. Nomenclatural updates; 2. Note updates; 3. Distribution updates; 4. Synonyms, misapplied or included names.