Supplementary material 1 from: Bartolucci F, Domina G, Angiolini C, Argenti C, Bacchetta G, Barberis D, Bertotto G, Bonari G, Calvia G, Candini F, Coltri F, Conti F, Del Guacchio E, Di Pietro R, Festi F, Fois M, Forte L, Galasso G, Gallo Splendore M, Koopman J, Lonati M, Mascia F, Minutillo F, Nascimbene J, Nota G, Pappagallo G, Pellegrino G, Podda L, Roffarè G, Ruggero A, Selvi F, Silletti G, Soldano A, Terranova C, Tondi G, Vallariello R, Zanatta K, Lastrucci L (2025) Notulae to the Italian native vascular flora: 20. Italian Botanist 20: 89-107. https://doi.org/10.3897/italianbotanist.20.179511

Italian Botanist 20 Supplementary data to Notulae to the Italian native vascular flora: 20 Edited by F. Bartolucci, G. Galasso Categories concerning the occurrence status of taxa follow Bartolucci et al. (2024). 1. Nomenclatural updates Family Nomenclature according to Bartolucci et al. (2024) Revised nomenclature References/Note Amaryllidace ae Allium coloratum Spreng. Allium cirrhosum Vand. Bartolucci et al. (2025) Amaryllidace ae Allium cyrilli Ten. Allium cyrilli Ten. subsp. cyrilli Other subspecies exist (POWO 2025) Ranunculace ae Anemone pavonina Lam. Anemone hortensis L. Compton (2025) Fabaceae Cytisus elongatus Waldst. & Kit. Cytisus triflorus Lam. Cytisus elongatus Waldst. & Kit. and C. triflorus Lam. are regarded as two different species by Coulot and Rabaute (2016). Pending further studies on Italian populations, we prefer to include provisionally C. elongatus in C. triflorus. The distribution of C. elongatus in Italy should be studied. Sennikov (2024) regarded, erroneously, C. triflorus as synonym of C. hirsutus L. Orchidaceae Dactylorhiza maculata (L.) Soó subsp. fuchsii (Druce) Hyl. Dactylorhiza fuchsii (Druce) Soó Bateman (2021) Orchidaceae Dactylorhiza maculata (L.) Soó subsp. saccifera (Brongn.) Diklić Dactylorhiza gervasiana (Tod.) H.Baumann & Künkele Bateman (2021); Dactylorhiza saccifera s.str . is distributed in Balkans and Turkey. Orchidaceae Dactylorhiza maculata (L.) Soó subsp. savogiensis (D.Tyteca & Gathoye) Kreutz Dactylorhiza maculata (L.) Soó subsp. maculata Tison and de Foucault (2014), POWO (2025) Orchidaceae Epipactis microphylla (Ehrh.) Sw. subsp. cossyrensis Brullo Epipactis microphylla (Ehrh.) Sw. Biagioli and De Simoni (2024), POWO (2025) Euphorbiace ae Euphorbia esula L. subsp. tommasiniana (Bertol.) Kuzmanov Euphorbia tommasiniana Bertol. Taxon endemic to Italy (Reichert et al. 2018; POWO 2025) Valerianaceae Fedia cornucopiae (L.) Gaertn. Fedia cornucopiae auct. Fl. Ital, non (L.) Gaertn. Synonym of Fedia graciliflora Fisch. & C.A.Mey. Apiaceae Ferulago galbanifera (Mill.) W.D.J.Koch Lophosciadium galbaniferum (Mill.) Lyskov & Akalın Lyskov et al. (2025) Apiaceae Ferulago nodosa (L.) Boiss. subsp. geniculata (Guss.) Troìa & Raimondo Lophosciadium nodosum (L.) Lyskov subsp. geniculatum (Guss.) Lyskov Lyskov et al. (2025) Apiaceae Ferulago sylvatica (Besser) Rchb. Lophosciadium sylvaticum (Besser) Lyskov Lyskov et al. (2025) Liliaceae Fritillaria tubaeformis Gren. & Godr. subsp. moggridgei (Planch.) Rix Fritillaria moggridgei (Planch.) Boiss. & Reut. ex Cusin Dovana et al. (2025) Liliaceae Fritillaria tubaeformis Gren. & Godr. subsp. tubaeformis Fritillaria tubaeformis Gren. & Godr. Dovana et al. (2025) Asteraceae Leontodon crispus Vill. Leontodon crispus Vill. subsp. crispus Conti et al. (2025) Fabaceae Lathyrus jordanii (Ten.) Ces., Pass. & Gibelli Lathyrus jordani (Ten.) Ces., Pass. & Gibelli According to Art. 60.10 (Turland et al. 2025) the original spelling of the epithet “jordani ” is to be retained. Caryophyllac eae Moehringia bavarica (L.) Gren. Moehringia bavarica (L.) Gren. subsp. bavarica Kadereit (2025) Caryophyllac eae Moehringia insubrica Degen Moehringia bavarica (L.) Gren. subsp. bavarica Kadereit (2025) Orchidaceae Orchis mascula (L.) L. subsp. olbiensis (Reut. ex Gren.) Asch. & Graebn. Orchis olbiensis Reut. ex Gren. Bateman et al. (2003), Tison and de Foucault (2014) Orchidaceae Orchis mascula (L.) L. subsp. speciosa (Mutel) Hegi Orchis mascula (L.) L. subsp. mascula Bateman et al. (2003, Tison and de Foucault (2014), Pignatti et al. (2017) Rhamnaceae Rhamnus lycioides L. subsp. oleoides (L.) Jahand. & Maire Rhamnus oleoides L. subsp. oleoides Alijanpoor et al. (2021), POWO (2025) Rosaceae Rubus hirtus Waldst. & Kit. group Rubus glandulosus Bellardi Sochor et al. (2025) Caryophyllac eae Sagina hawaiensis Pax Sagina alexandrae Iamonico According to Iamonico (2025) Sagina hawaiensis should be regarded as synonym of S. maxima A.Gray Asteraceae Serratula tinctoria L. subsp. monticola (Boreau) Berher Serratula tinctoria L. subsp. tinctoria Tison and de Foucault (2014); according to POWO (2025) this taxon could be recognized as variety (Serratula tinctoria var. alpina Godr.). Rosaceae Sorbus ×decipiens (Bechst.) Petz. & G.Kirchn. Aria decipiens (Bechst.) M. Roem. Mosyakin et al. (2025) Rosaceae Sorbus ×hostii (J.Jacq. ex Host) Heynh. Hedlundia hostii (J. Jacq. ex Host) Mosyakin, Fedor. & McNeill Mosyakin et al. (2025) Rosaceae Sorbus aria (L.) Crantz Aria edulis (Willd.) M.Roem. Mosyakin et al. (2025) Rosaceae Sorbus austriaca (Beck) Hayek Hedlundia austriaca (Beck) Sennikov & Kurtto Mosyakin et al. (2025) Rosaceae Sorbus chamaemespilus (L.) Crantz Aria chamaemespilus (L.) Host Mosyakin et al. (2025) Rosaceae Sorbus flabellifolia (Spach) Schauer Aria umbellata (Desf.) Sennikov & Kurtto Mosyakin et al. (2025) Rosaceae Sorbus graeca (Spach) hort. Lodd. ex S.Schauer Aria graeca (Spach) M.Roem. Mosyakin et al. (2025) Rosaceae Sorbus hybrida (L.) L. Hedlundia hybrida (L.) Sennikov & Kurtto Mosyakin et al. (2025) Rosaceae Sorbus intermedia (Ehrh.) Pers. Hedlundia intermedia (Ehrh.) Mosyakin, Fedor. & McNeill Mosyakin et al. (2025) Rosaceae Sorbus latifolia (Lam.) Pers. Aria latifolia (Lam.) M. Roem. Mosyakin et al. (2025) Rosaceae Sorbus lippertiana N.Mey. & Meierott Hedlundia lippertiana (N.Mey. & Meierott) N.Mey. Mosyakin et al. (2025) Rosaceae Sorbus mougeotii Soy.-Will. & Godr. Hedlundia mougeotii (Soy.-Will. & Godr.) Sennikov & Kurtto Mosyakin et al. (2025) Rosaceae Sorbus pannonica Kárpáti Aria pannonica (Kárpáti) Sennikov & Kurtto Mosyakin et al. (2025) Rosaceae Sorbus torminalis (L.) Crantz Aria torminalis (L.) Beck Mosyakin et al. (2025) Fabaceae Vicia tenuifolia Roth subsp. elegans (Guss.) Nyman Vicia elegans Guss. Cambria et al. (2025) 2. Note updates Family Taxon Note update References Poaceae Brachypodium hybridum Catalán, Joch.Müll., Hasterok & Jenkins The name Brachypodium hybridum Catalán, Joch.Müll., Hasterok & Jenkins was recently proposed for conservation (FerrerGallego et al. 2025). Ferrer-Gallego et al. (2025) Fabaceae Cytisus hirsutus L. The distribution of Cytisus hirsutus should be revised. Fabaceae Cytisus triflorus Lam. Cytisus elongatus Waldst. & Kit. and C. triflorus Lam. are regarded as two different species by Coulot and Rabaute (2016). Pending further studies on Italian populations, we prefer to include provisionally C. elongatus in C. triflorus . The distribution of C. elongatus in Italy should be studied. Apiaceae Eryngium alpinum L. In VEN this species is extinct, but some casual plants escaped from cultivation may be found (Argenti 2025). Argenti (2025) Rosaceae Euphorbia tommasiniana Bertol. Taxon strictly endemic to NE Italy (FVG) (Reichert et al. 2018). The records of this taxon for other Italian regions should be revised, and probably in part referable to E. saratoi Ardoino. F. Bartolucci, F. Conti and G. Galasso (pers. comm.) Rosaceae Hedlundia austriaca (Beck) Sennikov & Kurtto Sorbus slavnicensis Kárpáti and S istriaca Kárpáti recorded from FVG (Bartolucci et al. 2024), are unresolved names provisionally included here. 3. Distribution updates Family Taxon Distribution update References/Note Asteraceae Adenostyles alpina (L.) Bluff & Fingerh. subsp. macrocephala (Huter, Porta & Rigo) Dillenb. & Kadereit NP CAM Scafidi (2025) Asteraceae Adenostyles australis (Ten.) Iamonico & Pignatti NP PUG Scafidi (2025) Orchidaceae Anacamptis berica Doro P LOM Ravasio (2025) Lamiaceae Ajuga chamaepitys (L.) Schreb. subsp. chamaepitys P SAR Calvia et al. (2025) Rosaceae Alchemilla opaca Buser P TOS Gestri et al. (2022) Betulaceae Alnus cordata (Loisel.) Duby P A NAT VEN Argenti (2025) Asparagaceae Asparagus acutifolius L. P PIE Selvaggi et al. (2025) Aspleniaceae Asplenium fontanum (L.) Bernh. subsp. fontanum D ABR Conti et al. (2011) Cyperaceae Bolboschoenus yagara (Ohwi) Y.C.Yang & M.Zhan P VEN Di Natale et al. (2020) Poaceae Brachypodium distachyon (L.) P.Beauv. P PIE Guarino et al. (2024) Apiaceae Bupleurum baldense Turra P VDA Guarino et al. (2024) Brassicaceae Cardamine pentaphyllos (L.) Crantz NP TOS Viciani et al. (2020) Asteraceae Carduus chrysacanthus Ten. E ITA Recently excluded from the flora of Croatia (Šegota et al. 2025) Cyperaceae Carex myosuroides Vill. P MAR Allegrezza et al. (2007) Dipsacaceae Cephalaria alpina (L.) Roem. & Schult. NP VEN Argenti (2025) Oleaceae Chrysojasminum fruticans (L.) Banfi NP TOS Reported by Gestri et al. (2023) as a casual alien and/or cultivated; the species was only cultivated (G. Gestri, pers. comm.). Rosaceae Crataegus azarolus L. C ITA; P C SIC The native distribution range of the species in uncertain; it could be native in Sicily (Spadaro et al. 2024). Rosaceae Crataegus laevigata (Poir.) DC. P SIC Spadaro et al. (2024) Convolvulaceae Cuscuta monogyna Vahl subsp. monogyna NC C ABR Misprint in Bartolucci et al. (2024) Cyperaceae Cyperus polystachyos Rottb. NC SIC Iamonico et al. (2025) Fabaceae Cytisus pumilus De Not. P LIG, P PIE Endemic species to Maritime Alps (Italy and France; Cristofolini 1971, Coulot and Rabaute 2016). Orchidaceae Dactylorhiza majalis (Rchb.) P.F.Hunt & Summerh. NC TOS, NP MAR The only record for TOS is by Zangheri (1966 , under the name Orchis latifolia subsp. majalis Soó); the record for MAR refers to Benigni and Mandozzi (2013), who subsequently referred the same population to Dactylorhiza stortonii Benigni, Mandozzi, Monaldi, Barigelli & Petroselli (Benigni et al. 2021), which in turn seems to represent a hybrid in need of further studies. Brassicaceae Draba cuspidata M.Bieb. NP ABR Misprint in Bartolucci et al. (2024) Dryopteridaceae Dryopteris borreri (Newman) Kinahan P SIC Kozlowski et al. (2025, under the name D. robusta (Oberh. & Tavel ex Fraser-Jenk.) P.D.Sell) Asteraceae Echinops ritro L. A CAS VEN Argenti (2025) Geraniaceae Erodium moschatum (L.) L’Hér. A CAS PIE Selvaggi et al. (2025) Euphorbiaceae Euphorbia meuselii Geltman P TOS Selvi et al. (2025) Euphorbiaceae Euphorbia verrucosa L. NP LAZ, NP ABR, NP CAM Cresti et al. (2019) Euphorbiaceae Euphorbia virgata Waldst. & Kit. P VEN Argenti (2025) Geraniaceae Geranium rivulare Vill. NP VEN Argenti (2025) Asteraceae Hieracium dolichaetum Arv.- Touv. ex Zahn P VDA Bovio (2023) Asteraceae Hieracium racemosum Waldst. & Kit. ex Willd. subsp. barbatum (Froel.) Zahn P VDA Bovio (2023) Asteraceae Hieracium sabaudum L. subsp. fruticetorum (Jord. ex Boreau) Zahn P VDA Bovio (2023) Asteraceae Hieracium sabaudum L. subsp. salicetorum (Sudre) Zahn P VDA Bovio (2023) Asteraceae Hypochaeris glabra L. P VDA Guarino et al. (2024) Fabaceae Laburnum alpinum (Mill.) Bercht. & J.Presl NP SIC Pignatti et al. (2017) Fabaceae Laburnum anagyroides Medik. subsp. anagyroides A CAS SIC Pignatti et al. (2017) Asteraceae Leontodon montecristensis Foggi, N.Kilian, Landi & Zoccola E, P ITA; P TOS Foggi et al. (2025) Marsileaceae Marsilea quadrifolia L. EX TOS Peruzzi et al. (2025) Brassicaceae Noccaea cepaeifolia (Wulfen) Rchb. P TAA, P VEN Voisin et al. (2025) Brassicaceae Noccaea rotundifolia (L.) Moench P VDA, NP LOM, NP TAA, NP VEN, NP FVG Voisin et al. (2025) Poaceae Oloptum thomasii (Duby) Banfi & Galasso NP LOM The record by Federici and Zero (2025) is an error (Banfi, pers. comm.) Orchidaceae Ophrys bertolonii Moretti subsp. benacensis (Reisigl) P.Delforge P TOS Grillini and Centurione (2023) Poaceae Phalaris paradoxa L. A CAS PIE Selvaggi et al. (2025) Saxifragaceae Saxifraga hirculus L. NP ITA: NP VDA, NP PIE Selvaggi et al. (2025) Caryophyllaceae Silene cretica L. NC ABR Misprint in Bartolucci et al. (2024) Asteraceae Scorzoneroides montana (Lam.) Holub subsp. melanotricha (Vierh.) Gutermann P LOM Bona (2019), Leoni and Perico (2025) Poaceae Stipa syreistschikowii P.A.Smirn. NP ITA Species recorded by Valdés and Scholz (2009 [onwards]) based on a personal c ommunication by H. Scholz, 2003) and retrieved by POWO (2025). Recorded by mistake (E. Banfi, pers. comm.). Asteraceae Taraxacum aquilonare Hand.- Mazz. D ABR Misprint in Bartolucci et al. (2018, 2024). See Conti and Tinti (1998), Conti and Bartolucci (2016). Lamiaceae Thymus apulus Bartolucci & F.Conti E, P ITA; P PUG, P BAS Bartolucci and Conti (2025) Lamiaceae Thymus striatus Vahl subsp. striatus P ABR, P LAZ Bartolucci and Conti (2025) Fabaceae Trifolium dubium Sibth. P VDA Guarino et al. (2024) Fabaceae Vicia barbatoi Scafidi, Ranno & Cambria E, P ITA; P SIC Cambria et al. (2025) Fabaceae Vicia tenuifolia Roth subsp. elegans (Guss.) Nyman D TOS, D MAR, D LAZ, D CAM, D BAS, D CAL Cambria et al. (2025) Fabaceae Vicia lentoides (Ten.) Coss. & Germ. P PIE Selvaggi et al. (2006) Iridaceae Xiphion xiphium (L.) M.B.Crespo, Mart.Azorín & Mavrodiev A CAS TOS Gestri et al. (2023) 4. Synonyms, misapplied or included names Family Synonym, misapplied or included name Accepted name References/Note Rosaceae ?Sorbus istriaca Kárpáti Hedlundia austriaca (Beck) Sennikov & Kurtto Rosaceae ?Sorbus slavnicensis Kárpáti Hedlundia austriaca (Beck) Sennikov & Kurtto Rosaceae Crataegus drepanensis Raimondo, P.Marino & Scuderi Crataegus azarolus L. Rosaceae Crataegus zichichii Raimondo, Spadaro & Venturella Crataegus laevigata (Poir.) DC. Euphorbiaceae Euphorbia esula L. subsp. saratoi (Ardoino) P.Fourn. Euphorbia tommasiniana Bertol. Reichert et al. 2018 Euphorbiaceae Euphorbia saratoi Ardoino Euphorbia tommasiniana Bertol. Reichert et al. 2018 Euphorbiaceae Euphorbia virgata Waldst. & Kit. Euphorbia esula L. subsp. tommasiniana (Bertol.) Kuzmanov Reichert (2018), POWO (2025) Euphorbiaceae Euphorbia virgata Waldst. & Kit. Euphorbia tommasiniana Bertol. Reichert et al. 2018 Valerianaceae Fedia cornucopiae (L.) Gaertn. subsp. graciliflora (Fisch. & C.A.Mey.) Nyman Fedia graciliflora Fisch. & C.A.Mey. Valerianaceae Fedia cornucopiae (L.) Gaertn. var. graciliflora (Fisch. & C.A.Mey.) Ball Fedia graciliflora Fisch. & C.A.Mey. Asteraceae incl. Leontodon biscutellifolius DC. Leontodon crispus Vill. subsp. crispus Conti et al. (2025) Asteraceae incl. Leontodon crispus var. biscutellifolius (DC.) F.Conti Leontodon crispus Vill. subsp. crispus Conti et al. (2025) Orchidaceae Ophrys temperans Soca Ophrys holosericea (Burm.f.) Greuter References Alijanpoor B, Khodayari H, Assadi M, Rahiminejad M, Mehregan I (2021) A taxonomic revision of Rhamnus L. and Atadinus Raf. (Rhamnaceae) in Iran. Phytotaxa 521(3): 127–58. https://doi.org/10.11646/phytotaxa.521.3.1. 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