Flora of Italy

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The green leaves, white flowers and red berries of the strawberry tree, whose colors recall the flag of Italy: for this reason this bush is considered one of the Italian national symbols. The strawberry tree, which is native to the Mediterranean region, is the national tree of Italy. Arbustus unedo.jpg
The green leaves, white flowers and red berries of the strawberry tree, whose colors recall the flag of Italy: for this reason this bush is considered one of the Italian national symbols. The strawberry tree, which is native to the Mediterranean region, is the national tree of Italy.

The flora of Italy is all the plant life present in the territory of the Italian Republic. The flora of Italy was traditionally estimated to comprise about 5,500 vascular plant species. [2] However, as of 2019, 7,672 species are recorded in the second edition of the flora of Italy and in its digital archives Digital flora of Italy. [3] In particular, 7,031 are autochthonous and 641 are non native species widely naturalized since more than three decades. Additionally, further 468 exotic species have been recorded as adventitious or naturalized in more recent times.

Contents

Geobotanically, the Italian flora is shared between the Circumboreal Region and Mediterranean Region. According to the index compiled by the Italian Ministry for the Environment in 2001, 274 vascular plant species were protected. Italy has 1,371 endemic plant species and subspecies.

Biodiversity

Barbaricina columbine, endemic to Sardinia Aquilegia barbaricina.jpg
Barbaricina columbine, endemic to Sardinia

Italy is one of the richest European countries in both plant and animal biodiversity, with a population very rich in endemic forms, [4] and has the highest level of biodiversity of both animal and plant species within the European Union. [5] During the Pleistocene glaciations, the Italian territory remained largely free of ice, which allowed the flora and fauna to survive, something that did not happen in the central-northern areas of the continent, and the retreat of the great glaciers has left glacial relict fauna in some mountain locations. [6]

The Italian territory extends over about 10° of latitude, therefore, while remaining in the context of temperate climates without extremes of heat, cold or aridity, the climatic difference between the north and the south of the country is not at all negligible, going from the nival climates of the Alpine peaks, to the cool semi-continental temperate climate of the Po Valley, to the Mediterranean climate of the central-southern coasts and the islands. [7] Italy is predominantly hilly and mountainous in nature of the territory, which has caused a proliferation of ecological niches, close in space but very diversified. [8]

Geography and climate

Map of the hardiness zones of Italy.
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Area of conifers and blueberries
Area of beech and raspberries
Area of chestnut and vine
Area of olive tree
Area of citrus Italia carta rusticita.png
Map of the hardiness zones of Italy.
  Area of conifers and blueberries
  Area of beech and raspberries
  Area of chestnut and vine
  Area of olive tree
  Area of citrus

Italy consists of a 1,000 km (620 miles) long peninsula extending out into the central Mediterranean, together with a number of islands to the south and west. The Apennines run north-south through the peninsula connecting the Alps in the north to Etna and the Peloritani mountains in Sicily in the south. The geology is diverse.

Northern Italy is dominated by the Alps and an extensive valley of the Po river which is extensively agricultural and industrialised. Central Italy includes the regions of Tuscany, Umbria, Marche and Lazio. It is dominated by the Apennines, from which a few major rivers flow. There are few natural plains. A process of land reclamation has replaced the coastal swamps and marshes with agricultural land.

Southern Italy includes the regions of Abruzzo, Molise, Apulia, Basilicata, Calabria and Campania. Agriculture and industry are less developed. The main islands are Sicily, Sardinia and the Aeolian Islands.

Because of the length of the Italian peninsula and the mostly mountainous hinterland, the climate of Italy is highly diverse. In most of the inland northern and central regions, the climate ranges from humid subtropical to humid continental and oceanic. In particular, the climate of the Po valley geographical region is mostly continental, with harsh winters and hot summers. [9] [10] The coastal areas of Liguria, Tuscany and most of the South generally fit the Mediterranean climate stereotype (Köppen climate classification). Each region has a distinct flora.

Ecoregions

An ecoregion is an ecologically and geographically defined area with characteristic natural communities and species. Different ecoregions are distinguished by different vegetation features. Most of the Italian territory is included in the Mediterranean Basin. Important Italian terrestrial ecoregions include the Illyrian deciduous forests, the Italian sclerophyllous and semi-deciduous forests, the South Apennine mixed montane forests, the Tyrrhenian-Adriatic sclerophyllous and mixed forests, Apennine deciduous montane forests, the Dinaric Mountains mixed forests and the Po Basin mixed forests.

Sea marigold, a critically endangered species endemic to Sicily Gardenology.org-IMG 2679 ucla09.jpg
Sea marigold, a critically endangered species endemic to Sicily

In Italy Carlo Blasi et al. identified and mapped two divisions (Temperate and Mediterranean), 13 provinces, 33 sections and approximately 80 subsections. Each unit has an alphanumeric code that indicates its hierarchical level and a full name that indicates its geographic location and main diagnostic factor. [11]

The floral composition

Sicilian Fir, a critically endangered species endemic to Sicily Abies nebrodensis Castellana Sicula1.jpg
Sicilian Fir, a critically endangered species endemic to Sicily

The native vegetation of Italy reflects the diversity of the physical environment: the differences in geology, the differences of altitude above sea level and the diversity of the climate between the continental and the peninsular Italy, that give rise to various phytoclimatic areas.

The peninsula and islands are dominated by the characteristics of the Mediterranean climate, with mild and rainy winters and very warm and dry summers. On the contrary, the north of Italy has lower temperatures in winter and a more uniform distribution of rainfall during the summer.

The species of plants present in Italy belong to the flora of the continental Europe or to the Mediterranean flora. In some cases Western species can be distinguished (e.g. the hornbeam, limited to Western Europe) and eastern species (e.g. the oriental hornbeam, present in Eastern Europe).

The last ice age, the Würm Glaciation, in the Alps ended about 12,000 years ago, and one can still recognize its influence on vegetation, in particular by means of glacial relict species. A well known example is the Etna birch (Betula aetniensis), driven in Sicily at a time when the climate was much colder.

Broadly there are three different vegetational zones of forests or bushes in Italy:

Lavender cotton, endemic to Northwest Italy Santolina pinnata kz04.jpg
Lavender cotton, endemic to Northwest Italy

In the Po Basin can be found mixed forests that include mixed deciduous oak/hornbeam forests ( Quercus robur , Quercus cerris , Carpinus betulus , Ulmus minor , Fraxinus ornus ) and Riparian forest, as well as flood-plain vegetation of the Po Basin ( Fraxinus oxycarpa , Salix alba , Alnus glutinosa , Ulmus minor , Populus alba , Populus nigra , Quercus robur ).

There are also plant associations almost treeless: grasslands, pastures, deserts. In the mountains, gradually, the forest turns in mountain pastures, scattered in various shrubs (e.g. Pinus mugo , rhododendrons, junipers) and dotted with small colorful flowers. Higher up are the montane grasslands and even areas similar to a desert because they have no or almost no vegetation (rocks, glaciers).

Species richness in Southern Europe

Italy has around 6,711 (6,759) species of vascular plants (Conti et al., 2005 An inventory of vascular plants endemic to Italy), preceded only by the Iberian Peninsula and Balearic Islands with around 7,500 vascular plant taxa (species and subspecies) (Castroviejo 2010 Flora Iberica). In Greece, the number of species is around 5,700 (Strid and Tan, 1997 Flora Hellenica) and in France, there are 4,630 species (Walter and Gillett, 1998 1997 IUCN red list of threatened plants). Per unit area Greece is the country with the highest concentration of native plant species.

Endemic species

Ucriana violet, endemic to Sicily Viola ucriana01.jpg
Ucriana violet, endemic to Sicily

Italy has 1,371 endemic plant species and subspecies (18.9% of the total vascular flora). [12] Endemic species include Abies nebrodensis , Allium agrigentinum , Anthemis cupaniana , Calendula maritima , Erysimum etnense , Galium litorale , Petagnaea , Sicilian Fir, Silene hicesiae , Viola ucriana , Zelkova sicula , Aquilegia barbaricina , Aquilegia nuragica , Centaurea gymnocarpa , Centranthus amazonum , Cerastium utriense , Dianthus rupicola , Gagea chrysantha , Galium baldense , Galium glaucophyllum , Genista aetnensis , Hieracium lucidum , Iris benacensis , Iris bicapitata , Iris marsica , Iris pseudopumila , Ophrys calliantha , Orchis brancifortii , Polygala sinisica , Ribes sardoum and Santolina pinnata .

Threats

Habitat loss, fragmentation and degradation are the most significant threats to plant species that occur in Italy. Also changing water flow patterns and over-extraction, increasing droughts due to climate change, pollution and the introduction of alien species threaten the flora. Other threats come from farming (as a result of agricultural expansion and intensification), urbanization and tourism. [13]

The cultivation of plants that give textile fibers ( Cannabis sativa , Linum usitatissimum ), the cultivation of sugar beet ( Beta vulgaris ), cereals, potatoes, orchards, vineyards and olive groves have almost replaced the natural vegetation.

The actions of man since Roman times have resulted in the destruction of most of the lowland forests and hills, the expansion of pastures, and the extinction of many species and in the introduction of exotic species which are then naturalized. For example, the Indian fig opuntia ( Opuntia ficus-indica ), is now common in the warmer parts of the Southern Italy. Also, the invasive false Acacia (Robinia) is widely spread.

Conservation

National and regional parks in Italy National and Regional Parks of Italy.svg
National and regional parks in Italy

Italy is a signatory to the Berne Convention on the Conservation of European Wildlife and Natural Habitats and the Habitats Directive both affording protection to Italian fauna and flora. National parks cover about 5% of the country, [14] while the total area protected by national parks, regional parks and nature reserves covers about 10.5% of the Italian territory, [15] to which must be added 12% of coasts protected by marine protected areas. [16]

Notable botanists

Herbaria

The following table includes herbaria located in Italy.

Herbarium of the Museo di Storia Naturale di Firenze Museo di botanica, erbario generale 03.JPG
Herbarium of the Museo di Storia Naturale di Firenze
Herbarium of the Museo di Storia Naturale di Firenze Museo di botanica, erbario storico di odoardo beccari.JPG
Herbarium of the Museo di Storia Naturale di Firenze
NameNo. Specimens [17] Abbr.CityWebsite
Museo di Storia Naturale di Firenze 3,650,000FI Florence
Università degli Studi di Roma La Sapienza 1,120,000RO Rome
Università degli Studi di Torino 1,000,000TO Turin
Herbarium Mediterraneum Panormitanum 500,000PAL Palermo
Università degli Studi di Padova 300,000PAD Padua
Università di Pisa 300,000PI Pisa
Museo civico di storia naturale di Verona 270,000VER Verona
Università di Camerino 250,000CAME Camerino
Università di Catania 200,000CAT Catania
Centro Studi Erbario Tropicale, Università degli Studi di Firenze 200,000FT Florence
Museo Tridentino di Scienze Naturali 200,000TR Trento
Università degli Studi di Trieste 200,000TSB Trieste
Università di Pavia 180,000PAV Pavia
Università Degli Studi di Napoli Federico II 170,000NAP Naples
Centro Ricerche Floristiche Marche150,000PESA Pesaro
Università di Bologna 130,000BOLO Bologna
Museo Friulano di Storia Naturale 130,000MFU Udine
Università degli Studi di Roma Tre 118,000URTRome
Università di Sassari 100,000SS Sassari
Civico Museo di Storia Naturale di Trieste 100,000TSM Trieste
Università degli Studi di Cagliari 80,000CAG Cagliari
Università di Genova 75,000GE Genoa
Università di Siena 75,000SIENA Siena
Università degli Studi di Milano 60,000MI Milan
Museo Civico di Storia Naturale di Genova 55,000GDOR Genoa
Museo Civico di Rovereto 51,000ROV Rovereto
Museo Regionale di Scienze Naturali di Torino 50,000MRSN Turin
Università degli Studi di Napoli 50,000PORUN Portici

Database

The Department of Biology of the University of Trieste houses the National Data Bank for the Italian Flora and Vegetation.

Botanical gardens

Orto Botanico di Brera, Milan Brera Botanical Garden - 4.jpg
Orto Botanico di Brera, Milan
Orto Botanico dell'Universita di Roma "La Sapienza" Orto botanico - fontana dei tritoni 2715.JPG
Orto Botanico dell'Università di Roma "La Sapienza"

The most important botanical gardens and arboretums in Italy are: [18]

Historic gardens

The gardens of Isola Bella, Stresa 564IsolaBella.jpg
The gardens of Isola Bella, Stresa
Boboli Gardens, Florence Skulpturen Boboligarten Florenz.jpg
Boboli Gardens, Florence

The Italian garden is stylistically based on symmetry, axial geometry and on the principle of imposing order over nature. It influenced the history of gardening, especially French gardens and English gardens. [19] The Italian garden was influenced by Roman gardens and Italian Renaissance gardens. The most important historic gardens in Italy are: [20] [21]

See also

Related Research Articles

<span class="mw-page-title-main">Sclerophyll</span> Type of plant

Sclerophyll is a type of vegetation that is adapted to long periods of dryness and heat. The plants feature hard leaves, short internodes and leaf orientation which is parallel or oblique to direct sunlight. The word comes from the Greek sklēros (hard) and phyllon (leaf). The term was coined by A.F.W. Schimper in 1898, originally as a synonym of xeromorph, but the two words were later differentiated.

<span class="mw-page-title-main">Apennine Mountains</span> Mountain ranges stretching the length of Italy

The Apennines or Apennine Mountains are a mountain range consisting of parallel smaller chains extending c. 1,200 km (750 mi) along the length of peninsular Italy. In the northwest they join with the Ligurian Alps at Altare. In the southwest they end at Reggio di Calabria, the coastal city at the tip of the peninsula. Since 2000 the Environment Ministry of Italy, following the recommendations of the Apennines Park of Europe Project, has been defining the Apennines System to include the mountains of north Sicily, for a total distance of 1,500 kilometres (930 mi). The system forms an arc enclosing the east side of the Ligurian and Tyrrhenian Seas.

<span class="mw-page-title-main">Italian Peninsula</span> Peninsula in southern Europe

<span class="mw-page-title-main">Stone pine</span> Species of pine tree

The stone pine, botanical name Pinus pinea, also known as the Italian stone pine, Mediterranean stone pine, umbrella pine and parasol pine, is a tree from the pine family (Pinaceae). The tree is native to the Mediterranean region, occurring in Southern Europe and the Levant. The species was introduced into North Africa millennia ago, and is also naturalized in the Canary Islands, South Africa and New South Wales.

<span class="mw-page-title-main">Mediterranean Basin</span> Region of lands around the Mediterranean Sea that have a Mediterranean climate

In biogeography, the Mediterranean Basin, also known as the Mediterranean Region or sometimes Mediterranea, is the region of lands around the Mediterranean Sea that have mostly a Mediterranean climate, with mild to cool, rainy winters and warm to hot, dry summers, which supports characteristic Mediterranean forests, woodlands, and scrub vegetation.

The Civico Orto Botanico di Trieste is a municipal botanical garden located at via Marchesetti 2, Trieste, Friuli-Venezia Giulia, Italy.

The Orto Botanico dell'Università di Trieste is a nature preserve and botanical garden operated by the University of Trieste, Friuli-Venezia Giulia, northern Italy.

<span class="mw-page-title-main">Orto Botanico dell'Università di Pavia</span> Botanic garden and museum in Italy

The Orto Botanico dell'Università di Pavia also known as the Orto Botanico di Pavia, is a botanical garden maintained by the University of Pavia. It is located at Via S. Epifanio, 14, Pavia, Italy, and is open to the public on weekends. The botanical garden covers an area of about two hectares and has approximately two thousand different species of plants, which are organised in sections. The current director is Francesco Sartori.The Botanical Garden stands in the place where the church of Saint Epiphanius was located, of which it preserves the cloister of the 15th century.

<span class="mw-page-title-main">Orto Botanico dell'Università di Torino</span>

The Orto Botanico dell'Università di Torino is a botanical garden and arboretum operated by the Dipartimento di Biologia Vegetale of the University of Turin. It is located in the Parco del Valentino along the Po River, at Viale Pier Andrea Mattioli, Turin, Italy, and open weekends and holidays during the warmer months; an admission fee is charged.

<span class="mw-page-title-main">Orto Botanico dell'Università di Cagliari</span> Botanical garden in Italy

The Orto Botanico dell'Università di Cagliari, also known as the Orto Botanico di Cagliari, is a botanical garden operated by the University of Cagliari and located at Viale S. Ignazio da Laconi 9-11, Cagliari, Sardinia, Italy.

<span class="mw-page-title-main">Orto Botanico dell'Università di Siena</span> Botanical garden in Liguria, Italy

<span class="mw-page-title-main">Illyrian deciduous forests</span> Terrestrial ecoregion of Europe

The Illyrian deciduous forests is a terrestrial ecoregion in southern Europe, which extends along the eastern coast of the Adriatic Sea. It belongs to the Mediterranean forests, woodlands, and scrub biome, and is in the Palearctic realm.

<span class="mw-page-title-main">Fauna of Italy</span> Native animals of Italy

The fauna of Italy comprises all the animal species inhabiting the territory of the Italian Republic and its surrounding waters. Italy has probably the highest level of faunal biodiversity in Europe, with over 57,000 species recorded, representing more than a third of all European fauna. This is due to various factors. The Italian peninsula is in the centre of the Mediterranean Sea, forming a corridor between central Europe and North Africa, and it has 8,000 km (5,000 mi) of coastline. Italy also receives species from the Balkans, Eurasia, and the Middle East. Italy's varied geological structure, including the Alps and the Apennines, Central Italian woodlands, and Southern Italian Garigue and Maquis shrubland, also contribute to high climate and habitat diversity.

<span class="mw-page-title-main">Italian sclerophyllous and semi-deciduous forests</span> Ecoregion in Italy

The Italian sclerophyllous and deciduous forests ecoregion, part of the Mediterranean forests, woodlands, and scrub biome, is in Italy. The ecoregion covers most of the Italian Peninsula and includes both evergreen and deciduous forests.

<span class="mw-page-title-main">South Apennine mixed montane forests</span> Ecoregion in Italy

The South Apennine mixed montane forests is an ecoregion in the southern Apennine Mountains of southern Italy and Sicily. It has a Mediterranean climate, and is in the Mediterranean forests, woodlands, and scrub biome.

<span class="mw-page-title-main">Tyrrhenian–Adriatic sclerophyllous and mixed forests</span> Ecoregion in Southern Europe

The Tyrrhenian-Adriatic sclerophyllous and mixed forests is an ecoregion in southern Italy, Sicily, Sardinia, Corsica, the Dalmatian Islands of Croatia, and Malta.

<span class="mw-page-title-main">Po Basin mixed forests</span> Ecoregion in Italy

The Po Basin mixed forests is a temperate broadleaf and mixed forests ecoregion in the basin of the Po River in northern Italy and Switzerland's Ticino canton.

<span class="mw-page-title-main">Apennine deciduous montane forests</span> Ecoregion in Italy

The Apennine deciduous montane forests are a temperate broadleaf and mixed forests ecoregion in the Apennine Mountains of Italy. The development of these forests is ensured by the high rainfall in the Apennines, combined with a temperate-cool climate. Because of climate change, the presence of silver fir, although still widespread, has been dramatically reduced in favour of beech.

<span class="mw-page-title-main">Alps conifer and mixed forests</span> Ecoregion in Central Europe

The Alps conifer and mixed forests is a temperate broadleaf and mixed forests ecoregion in central Europe. It extends along the Alps mountains through portions of France, Italy, Switzerland, Germany, Liechtenstein, Austria, and Slovenia. The ecoregion extends from the lower slopes of the Alps to its peaks, which include Mont Blanc, at 4,809 m (15,778 ft) the highest peak in the Alps.

References

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  2. Pignatti,S.,1982 Flora d’Italia. Edagricole, Bologna, vol. 1-3, 1982
  3. Riccardo Guarino, Sabina Addamiano, Marco La Rosa, Sandro Pignatti Flora Italiana Digitale:an interactive identification tool for the Flora of Italy
  4. "La ricchezza della Biodiversità italiana" (in Italian). Retrieved 10 March 2022.
  5. "Italy - Main Details". Convention on Biological Diversity. Retrieved 10 September 2023.
  6. "Biodiversità" (in Italian). Retrieved 10 March 2022.
  7. "Il clima in Italia" (in Italian). Retrieved 10 March 2022.
  8. "La "nicchia ecologica" di Fonte Santa: storia di un microclima unico in Italia" (in Italian). Retrieved 10 March 2022.
  9. Adriana Rigutti, Meteorologia, Giunti, p. 95, 2009.
  10. Thomas A. Blair, Climatology: General and Regional, Prentice Hall pp. 131–132
  11. Carlo Blasi, Giulia Capotorti, Daniela Smiraglia, Domenico Guida, Laura Zavattero, Barbara Mollo, Raffaella Frondoni, and Riccardo Copiz A thematic contribution to the National Biodiversity Strategy - The ecoregions of Italy
  12. Lorenzo Peruzzi. Fabio Conti and Fabrizio Bartolucci An inventory of vascular plants endemic to Italy
  13. Italy’s biodiversity at risk IUCN
  14. "National Parks in Italy". Parks.it. 1995–2010. Archived from the original on 29 March 2010. Retrieved 15 March 2010.
  15. "Regione e aree protette" (in Italian). Retrieved 11 January 2022.
  16. "Le aree protette in Italia" (in Italian). Retrieved 2 March 2022.
  17. Holmgren, P. K.; N. H. Holmgren (1998). Index Herbariorum: A global directory of public herbaria and associated staff. New York: New York Botanical Garden. Archived from the original on 28 December 2009. Retrieved 18 June 2008.
  18. "17 orti botanici tra i più belli d'Italia" (in Italian). Retrieved 14 March 2022.
  19. "Alla scoperta delle meraviglie del giardino all'italiana" (in Italian). Retrieved 28 March 2022.
  20. "Top10: i giardini più belli d'Italia" (in Italian). Retrieved 15 March 2022.
  21. "I 10 Giardini più belli d'Italia" (in Italian). Retrieved 15 March 2022.

Further reading