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This paper deals with 70 non-native vascular plants, 25 of which are reported for the first time from the Balearic Islands: Agave attenu-Vitis ×instabilis. Moreover, 31 taxa are novelties for the flora of some islands. The occurrence of Centranthus macrosiphon (Valerianaceae) in eastern Mallorca is documented based on herbarium specimens collected...
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... Serapio (Fig. 2). Menorca: Binibèquer, 31SFE0608, 48 m, 10 June 2017, C. Gómez-Bellver ...
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... commonly grown in Mallorca. However, the species had not been recorded so far as an escape in the Balearic Islands until now. The observed population occupies about 5 m 2 on a shady bank of a stream. It obviously escaped from a nearby plantation. (Fig. 20); Venda de Safragell (Sant Joan de Labritja), 31SCD6917, 72 m, roadsides, 11 Oct 2019, J. Serapio (pers. ...
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... for Mallorca. Casual. So far, the species has been reported from southern Eivissa (Puig des Molins) by Serapio et al. (2016, sub Opuntia bergeriana A. Berger). Eivissa: Dalt Vila, 31SCD6407, disturbed scrub, 27 Aug 2011, E. Laguna (Fig. ...
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... to eastern and southern Brasil to Uruguay (An- derson, 2001), O. monacantha is widely cultivated in warmtemperate and subtropical regions of the world (POWO, 2022). It has been recorded as an alien from eastern Spain ( Sanz et al., 2004.). **Opuntia pilifera F.A.C. Weber Mallorca: Calvià, Portals, 31SDD6376, 35 m, stream, 14 Aug 2019, L. Sáez (Fig. ...
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... 2009). The specimen observed in Portals presents the distinctive characteristics of O. pilifera, according to Arias et al. (2012), large obovate to orbicular glabrous cladodes, the areoles are covered with whitish or yellowish, silky trichomes. **Opuntia robusta Pfeiff. Mallorca: Calvià, Portals, 31SDD6376, 35 m, stream, 14 Aug 2019, L. Sáez (Fig. ...
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... et al., 2014). Based on the small articles (15-25 cm long) our specimens from Portals are probably referable to O. robusta var. guerrana (Griffiths) Sánchez-Mej. Opuntia stricta (Haw.) Haw. in a broad sense (including O. dillenii) was previously known from the Eastern Balearic Islands (Moragues, 2005;Moragues & Rita, 2005;Podda et al., 2010). (Fig. ...
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... pumila L. Mallorca: Escorca, Lluc, 21DE9008, stream, 478 m, 12 Aug 2019, L. Sáez (Fig. 32); Palma, 31SDD7083, 48 m, side of the road Ma-11 and disturbed places, 3 July 2020, L. Sáez; Palma, next to the northern boundary of Polígon Industrial de Son Castelló i sa Indioteria, 31SDD7084, 51 m, disturbed roadsides, 3 July 2020, L. Sáez (pers. ...
Citations
... Consequently, concerns for the presence of alien plants prompted the need for a preliminary assessment of their potential impact, initially advocated by Moragues (2006), followed by Podda et al. (2010). Subsequent publications have demonstrated an increased rate of plant introductions Fraga et al. 2020;2022;2024;Cardona et al., 2021;Cerrato et al., 2023b;Serapio et al., 2023). Like other western Mediterranean regions, the latest synthesis of allochthonous Balearic flora indicates introductions are escalating at an exponential rate (Aymerich & Sáez, 2019;Gómez Bellver, 2023;Cerrato et al., 2023a). ...
... It has the capacity to adopt a climbing habit and is locally invasive. Recently reported from Ibiza and Formentera (Serapio et al., 2023). R. caroli bears a striking resemblance to R. tumidula and has been misidentified in Catalonia (Aymerich, 2017). ...
... This species is rarely found outside cultivation, with some sporadic occurrences recorded in the western Mediterranean and the Canary Islands, always in a casual. In the Balearic Islands, it is frequently present in domestic gardens and only recorded as casuals in two locations in Mallorca (Serapio et al., 2023, and the present record) and one in Formentera. This species is together with A. attenuata the only representatives of subgenus littaea (Agave species with espigate inflorescence). ...
The Balearic Islands is a western
Mediterranean archipelago that has undergone
strong touristic pressure in the last decades.
As a result, extensive gardening has led to the
introduction of several succulent plants. In this
paper we present a list of non-native succulents
present in the Balearic Islands, based on field
surveys conducted during the last years supported
by an extensive bibliographic research. Eightyseven
taxa are recorded representing eleven
different families. Among these, nine taxa are
novelties previously unknown to the Balearic
flora, three of them being considered new to
the Mediterranean and European flora. From all
recorded taxa thirty-two remain as casual, twentyeight
are considered naturalised and twenty-seven
display full invasive traits competing with native
plants.
... Aquesta espècie, a les Balears, ja era coneguda d'Eivissa (Serapio et al., 2023) i Mallorca (Ribas-Serra et al., 2020). Com l'espècie anterior, tot i està àmpliament cultivada, fins ara no s'havia detectat la seva naturalització. ...
Es presenta un recull de dades corològiques per a 21 tàxons al·lòctons de la flora
vascular de Menorca. D’aquests, 8 són citats per primera vegada a les Balears: Bacopa
monnieri (L.) Wettst., Crassula multicava Lem. subsp. multicava, Furcraea selloana
K. Koch, Hesperocyparis stephensonii (C.B.Wolf) Bartel, Lantana depressa Small
var. depressa, Morus indica L., Panicum virgatum L., Rhaphiolepis umbellata
(Thunb.) Makino. Altres 9 són novetat per a la flora al·lòctona de l’illa: Asparagus
aethiopicus L., A. setaceus (Kunth) Jessop, Catharanthus roseus (L.) G. Don,
Commelina erecta L., Dracaena draco (L.) L., Ficus microcarpa L.f., F. rubiginosa
Desf. ex Vent., Phacelia tanacetifolia Benth., Talinum paniculatum (Jacq.) Gaertn.
Dels altres 4 tàxons es proporcionen localitats concretes que confirmen el seu procés
de naturalització.
Datasets for 21 alien plant species found
in Menorca (Balearic Islands) are summarized. Of those taxa, 8 are newly recorded for
the flora of the Balearic Islands: Bacopa monnieri (L.) Wettst., Crassula multicava
Lem. subsp. multicava, Furcraea selloana K. Koch, Hesperocyparis stephensonii
(C.B.Wolf) Bartel, Lantana depressa Small var. depressa, Morus indica L., Panicum
virgatum L., Rhaphiolepis umbellata (Thunb.) Makino. Other 9 are new for the flora
of Menorca: Asparagus aethiopicus L., A. setaceus (Kunth) Jessop, Catharanthus
roseus (L.) G. Don, Commelina erecta L., Dracaena draco (L.) L., Ficus microcarpa
L.f., F. rubiginosa Desf. ex Vent., Phacelia tanacetifolia Benth., Talinum paniculatum
(Jacq.) Gaertn. For the remaining 4 taxa precise locations are provided, thus their
presence in the island is confirmed.
... Es distingeix del primer per les fulles més petites (en general 1-2 cm), usualment piloses al revers, la presència d'algunes branques ascendents (fins a 60 cm d'alçada) i pel nombre de llavors al fruit (2-4); de la segona espècie parental es diferencia sobretot per tenir tiges procumbents i parcialment radicants, les fulles més grosses i les flors fent grups de 2-6 (no solitàries). Aquest híbrid és conegut com a naturalitzat en diversos països d'Europa occidental i septentrional, com les illes Britàniques (Stace, 2010) , Bèlgica (Verloove, 2023) o Suècia (Karlsson, 2002). ...
Notes on alien flora in Catalonia. IV This work provides data on very rare alien plants in Catalonia and also new locations of geographical interest about not so rare species. 8 taxa (Aloiampelos striatula, Aurinia saxatilis, Cotoneaster ×suecicus, Dianthus plumarius, Forsythia viridissima, Oenothera villosa subsp. villosa, Phyllostachys sulphurea and Rosa banksiae) are new to the Iberian flora and 3 to the Catalan flora (Argyranthemum frutes-cens, Leucanthemum ×superbum, Opuntia bonaerensis). The naturalization in the territory of Cotoneaster perpusillus is also confirmed. Additionally, we confirm that Erigeron karvinskianus is becoming in recent years a conflicting invasive plant on the Montserrat mountain , where it competes with the native flora of the cliffs.
... In the same plot there are two other hybrid Aloe that must have the same origin (Aloe × nobilis, A. × spinosissima) and also other succulent garden plants (Agave lechuguilla, Cereus hildmannianus, Euphorbia abyssinica, Opuntia ficus-indica). We highlight the presence of an individual of Euphorbia abyssinica J.F. Gmel., because it is a very rare escape already reported from Valencian Community (Laguna & al., 2014) and the Balearic Islands (Serapio & al., 2023), but not from Catalonia; in Pau this euphorbia looks more as a cultivation remain than a true escaped alien plant. ...
In this work, we provide a second locality of Aloe × caesia as alien plant in the Iberian Peninsula and the taxonomic identity of previous records of Aloe ferox is discussed. Available information did not allow us to confirm former records of A. ferox, which might be actually A. × caesia; however, some plants show uncertain traits, so confirmation of their identity requires further analysis. Key words: alien flora, Aloe, hybrids, Mediterranean basin, succulent plants. RESUMEN: En este trabajo se aporta una segunda localidad de Aloe × caesia como planta alóctona en la Península Ibérica y se discute la identidad taxonómica de citas previas de Aloe ferox. La información disponi-ble no permite confirmar las citas previas de A. ferox. Hay indicios que sugieren que estas plantas correspon-derían también a A. × caesia, pero algunas muestran caracteres inciertos, por lo que la confirmación de su identidad requiere un análisis más detallado. Palabras clave: Aloe, flora alóctona, híbridos, Mediterráneo, plantas crasas. Known and new data on Aloe × caesia
