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Cynara

Cynara is a genus of thistle-like perennial plants in the Asteraceae family, comprising ten species native to the Mediterranean region, Macaronesia, and western Asia.^[1]^[2] These plants are characterized by erect, stout stems up to 250 cm tall, with arachnoid-tomentose (woolly) herbage, and leaves that are basal and cauline, often 1–3-pinnately lobed or divided, sometimes bearing spines.^[1] The genus produces discoid flower heads, either solitary or in small terminal clusters, with hemispheric or ovoid involucres 5–15 cm in diameter; florets have white, blue, or purple corollas, and the fruits are cypselae with a pappus of stiff bristles.^[1] The most economically significant species is the globe artichoke (Cynara cardunculus subsp. scolymus), widely cultivated for its large, fleshy flower heads used in culinary dishes and as a source of antioxidants in herbal supplements.^[3] Closely related is the cardoon (C. cardunculus subsp. cardunculus), grown for its edible leaf stalks and as an ornamental due to its striking silver-gray foliage and architectural form.^[3] Other species, such as Cynara cornigera and C. syriaca, are primarily wild and contribute to biodiversity in their native habitats, though some have potential in traditional medicine or as vegetable coagulants in cheese production.^[4] While native to temperate and subtropical biomes, several Cynara species have been introduced to other regions, including parts of North America and Europe, where they can become invasive in disturbed areas.^[2] Taxonomically, Cynara belongs to the tribe Cardueae within the subfamily Carduoideae, with the genus first described by Carl Linnaeus in 1753.^[2] Cultivation of Cynara species requires well-drained soil and full sun, thriving in mild winters and cool summers, making them popular in Mediterranean climates and as perennials in USDA zones 7–11.^[5] Beyond food and ornamentals, extracts from the genus, particularly from flower heads, exhibit hepatoprotective and choleretic properties, supporting their use in pharmaceuticals.^[4]

Taxonomy

Etymology

The genus name Cynara derives from the Ancient Greek term kynára (κυνάρα), an alternative form of kinára (κινάρα), referring to the artichoke plant.^[6] This linguistic root is linked to the Aegean island of Cinara (also spelled Kinaros or Zinaros), where early forms of artichoke plants were believed to originate.^[7] In Greek mythology, the name Cynara is associated with a beautiful nymph who caught the eye of Zeus; when she resisted his advances to remain faithful to her family, the enraged god transformed her into the prickly artichoke plant as punishment.^[8] This legend, recounted in ancient sources, underscores the plant's thistle-like appearance and ties the etymology to themes of beauty and retribution in classical lore.^[9] The type species, Cynara cardunculus, embodies this nomenclature as the genus exemplar.^[10]

Classification

The genus Cynara belongs to the family Asteraceae and is classified within the tribe Cardueae, commonly known as the thistle tribe, in the subfamily Carduoideae.^[11] This placement reflects its thistle-like characteristics, including spiny involucral bracts and capitula with tubular florets.^[12] The genus was established by Carl Linnaeus in his seminal 1753 publication Species Plantarum, where he described the type species Cynara cardunculus.^[13] Subsequent taxonomic treatments expanded on Linnaeus's foundation. A comprehensive revision by Wiklund in 1992 recognized eight species and four subspecies based on morphological, anatomical, and phytogeographical analyses.^[11] This revision reclassified certain taxa, such as incorporating the cultivated artichoke (Cynara scolymus) and cardoon into C. cardunculus subsp. cardunculus, while excluding others like C. tournefortii. As of 2025, current taxonomy accepts ten species in the genus.^[2] Phylogenetically, Cynara occupies a basal position within the Mediterranean clade of subtribe Carduinae in tribe Cardueae, showing affinities to genera such as Ptilostemon and Galactites, while being more distantly related to Onopordum (in an Asian-centered clade) and Carlina (in subtribe Carlininae).^[14] All species in the genus are diploids with a chromosome number of 2n = 34, consistent with the ancestral diploid state in Carduinae.^[15] Taxonomic debates persist regarding the status of cultivated forms, particularly whether the globe artichoke and cardoon represent distinct species, subspecies, or varieties of C. cardunculus. Wiklund's revision treated both as part of C. cardunculus subsp. cardunculus, emphasizing their derivation from wild progenitors, though some authorities recognize them as separate subspecies or varieties due to morphological and domestication differences.^[11]^[16]

Description

Morphology

Cynara species are perennial thistle-like herbaceous plants in the Asteraceae family, typically growing to heights of 0.5–2 m, though some cultivated forms can exceed 3 m. They exhibit a clumping habit with architectural foliage, forming robust basal rosettes that give way to erect, branched stems during the growing season. These stems are cylindrical, often ribbed, and covered in a dense arachnoid tomentum that imparts a grayish-green or silvery appearance, aiding in drought resistance in Mediterranean environments.^[17]^[18]^[19] The leaves of Cynara are large and alternate, arranged in a rosette at the base and becoming sessile higher up the stem. They are pinnately lobed or divided, with deeply incised margins often armed with sharp spines up to 35 mm long, particularly in wild species; cultivated varieties like the globe artichoke may lack spines or have reduced ones. The upper leaf surface is bright green and glabrescent to short-tomentose, while the lower surface is densely white-tomentose, contributing to the plant's silvery-gray hue and reflective properties for heat regulation. Leaf dimensions vary, with basal leaves reaching up to 1 m in length and 50 cm in width in some taxa.^[17]^[19]^[18] Beneath the soil, Cynara plants develop a deep taproot system that enhances drought tolerance by accessing water in arid soils, supplemented by secondary fibrous roots. In species propagated vegetatively, fleshy adventitious roots serve as storage organs, supporting regrowth after seasonal dieback. This root architecture, combined with the plant's overall perennial habit, allows Cynara to persist in nutrient-poor, well-drained habitats. For instance, species like C. cardunculus display larger overall structures compared to smaller taxa such as C. humilis.^[17]^[19]^[20]

Reproduction

The inflorescences of Cynara species are large capitula, typically solitary or clustered at the apex of stems, measuring 5–13 cm in diameter and featuring purple to blue-violet tubular florets. These flower heads, or capitula, arise on peduncles up to 180 cm long and are enclosed by 6–8 rows of fleshy, spiny involucral bracts that protect the developing florets. Each capitulum contains 800–1200 hermaphroditic disc florets arranged on a conical receptacle, with maturation progressing centripetally from the outer florets inward over 2–3 days; the florets are tubular, 3–8 cm long across developmental stages, and exhibit protandry where anthers dehisce before stigma maturation to prevent self-pollination.^[21]^[22]^[21] Pollination in Cynara is primarily entomophilous, facilitated by insects such as honey bees (Apis mellifera), bumble bees (Bombus terrestris), and beetles, which are attracted to the nectar-rich florets; the species are generally cross-pollinated and self-incompatible due to protandry and dichogamy, though self-fertilization can occur occasionally in some populations. Flower opening peaks between 8:00 and 11:00 a.m. under temperatures of 29–35°C and 50–55% humidity, with individual florets receptive for 2–3 days and entire capitula blooming for 5–6 days. Pollen is presented secondarily via elongation of the style through the anther tube, promoting outcrossing.^[21]^[23]^[24]^[25] Fruits of Cynara develop as achenes, obovate and 5–8 mm long, each containing a single seed with an inferior ovary; up to 600 achenes per capitulum are produced, ripening in summer. These achenes are topped with a pappus of simple to plumose bristles, 4 cm long, enabling wind dispersal, though detachment often occurs before release. Seed viability remains high for 5–7 years under suitable storage, with germination favored in autumn under moist conditions.^[26]^[25]^[21]^[25] Vegetative reproduction in Cynara occurs occasionally through root suckers or basal buds emerging from the perennial taproot and root crown, particularly in cultivated varieties like globe artichoke, allowing clonal propagation and persistence for up to 10–15 years. This method is common in horticulture to maintain desirable traits, though it can spread invasively in wild populations via resprouting from root fragments.^[24]^[25]^[26]

Distribution and Ecology

Native Range

The genus Cynara is native to the Old World, with its distribution centered in the Mediterranean Basin and extending eastward to northwestern Iran. This range includes Macaronesia (the Canary Islands and Madeira), southern Europe (Spain, Portugal, France, Italy including Sicily, Greece including Crete, Albania, the Balearic Islands, Cyprus, the East Aegean Islands, and Turkey), North Africa (Morocco, Algeria, Tunisia, Libya, and Egypt), and the Middle East (Lebanon-Syria, Palestine, Iraq, and Iran).^[2] No species of Cynara are native outside these regions.^[2] Species distributions within the genus exhibit distinct regional patterns, reflecting biogeographic divisions. Western species, such as C. baetica, are primarily confined to the Iberian Peninsula and Morocco; for instance, C. baetica subsp. baetica occurs in the Baetic Ranges of southern Spain between 500 and 1700 m elevation, while subsp. maroccana is endemic to Morocco.^[27] In contrast, eastern species like C. auranitica are distributed across the Levant and Anatolia, extending from eastern Mediterranean areas (Lebanon-Syria, Palestine, and Turkey) to northwestern Iran and Iraq.^[28] These patterns highlight the genus's adaptation to diverse microclimates within its overall native range, often influenced by rocky or disturbed habitats that limit eastward or westward expansions.^[2]

Habitat

Cynara species primarily inhabit dry, rocky, and calcareous soils in coastal maquis shrublands, open grasslands, and disturbed areas across the Mediterranean basin. These environments often feature poor, stony substrates with low nutrient availability, where the plants demonstrate strong tolerance to summer drought and semi-arid conditions. For instance, wild cardoon (Cynara cardunculus var. sylvestris) thrives in degraded, saline-influenced soils such as vertic xerofluvents and typic xerochrepts in Sicily, with annual rainfall ranging from 500 to 1200 mm.^[29] Such habitats support the genus's preference for well-drained, calcareous terrains, as evidenced by successful growth in rainfed calcic soils of marginal quality in Mediterranean experiments. The preferred climate for Cynara is Mediterranean-type, characterized by mild, wet winters and hot, dry summers, with temperatures ranging from minima of about 3°C to maxima exceeding 30°C. Elevations typically span from sea level to 750 m, though some populations extend higher in varied terrains; growth is concentrated in coastal and inland zones up to 1,500 m in suitable microclimates.^[29] This climatic adaptation allows the genus to exploit seasonal water availability, with intensive vegetative growth during cooler, moist periods and seed maturation under summer heat. In introduced ranges, Cynara has established invasively in regions mimicking Mediterranean conditions, including coastal prairies and grasslands in California, where it forms dense monocultures reaching up to 20,000 plants per acre in disturbed rangelands and chaparral.^[30] Similar invasions occur in southern Australia (e.g., Victoria and South Australia), favoring floodplains, swamps, and riparian areas, as well as in South America, particularly Argentina's pampas and Chile's coastal zones.^[31]^[32] These expansions exploit open, disturbed sites with coarse-textured or clay-rich soils, often below 500 m elevation.^[33] Key adaptations enabling Cynara's persistence in these habitats include deep taproots exceeding 5 m, which access subsurface water during droughts, and dense leaf pubescence that reduces transpiration in arid conditions.^[26] These traits, combined with tolerance for thin, unproductive soils, facilitate colonization of harsh, water-stressed environments across both native and non-native distributions.^[26]

Interactions

Cynara species exhibit varied interactions with herbivores, where their spiny structures play a dual role in defense and attraction. The leaves of Cynara plants, such as Cynara cardunculus, are browsed by goats and sheep in grazed pastures, contributing to thistle management in rangelands.^[22] However, the prominent spines on flowerheads and bracts deter larger mammalian herbivores by limiting access to foliage and reproductive structures.^[32] The nectar-rich inflorescences attract pollinators like bees and butterflies, enhancing reproductive success in Mediterranean habitats.^[32] In competitive dynamics, Cynara species demonstrate strong allelopathic effects that suppress neighboring vegetation, particularly during invasions. Rhizosphere soil from Cynara cardunculus contains elevated phenolic compounds that inhibit seed germination and reduce biomass in native grasses like Juncus pallidus by up to 341% in germination rates and 267% in aboveground growth, with less impact on tolerant non-native species such as Lolium rigidum.^[34] Leaf aqueous extracts further exhibit phytotoxic potential, reducing weed biomass by 23-50% in field conditions and depleting soil seed banks of grasses.^[35] These effects facilitate monoculture formation in grasslands, displacing annual exotic grasses and altering community structure. Additionally, dense stands of Cynara cardunculus in California grasslands increase fire risk by creating continuous fuel, promoting higher intensity burns compared to sparse native vegetation.^[33] Symbiotic relationships with arbuscular mycorrhizal fungi (AMF) are crucial for Cynara's nutrient acquisition in nutrient-poor soils. Inoculation with fungi like Glomus viscosum enhances root colonization rates up to 84%, improving phosphorus and nitrogen uptake, chlorophyll content, and overall plant vigor during establishment in low-fertility conditions.^[36] This association mitigates abiotic stresses, enabling Cynara species to thrive in disturbed or oligotrophic environments typical of their native Mediterranean range. Within ecosystems, Cynara serves as a seed source for granivorous birds, which consume and disperse seeds over distances, aiding plant spread in open habitats.^[32] As a pioneer species, Cynara cardunculus rapidly colonizes disturbed sites like fire-scarred grasslands and roadsides, forming dense patches that stabilize soil but exclude slower-growing natives, thus influencing succession dynamics.^[33]

Cultivation and Uses

Culinary Uses

The globe artichoke (Cynara cardunculus subsp. scolymus) is primarily valued in Mediterranean cuisine for its edible flower heads, consisting of tender bracts and the fleshy receptacle, which offer a bitter-sweet flavor profile. These buds are harvested from March to June in suitable climates, when they are compact and tight before flowering.^[37]^[38] The cardoon (C. cardunculus subsp. cardunculus), a close relative, features blanched leaf stalks that are consumed similarly to celery, providing a mild, artichoke-like taste with a fibrous texture. These stalks are a staple in traditional Spanish and Italian dishes, such as the Spanish cocido madrileño stew or Italian gratins and bagna cauda dips.^[39]^[40]^[41] Both species trace their culinary cultivation to ancient Mediterranean societies, with the globe artichoke domesticated from wild cardoon populations around the 1st century AD in Sicily, later spreading through Roman and Arab influences. Global production of globe artichokes reached approximately 1.52 million tonnes in 2020 and 1.58 million tonnes in 2022, predominantly from Mediterranean countries like Italy, Egypt, and Spain.^[42]^[43]^[44] Common preparation methods include boiling or steaming the artichoke heads to soften the bracts, often followed by stuffing with herbs, garlic, and breadcrumbs, or serving with dips like aioli. Cardoon stalks are typically blanched to remove bitterness before sautéing, braising in stews, or incorporating into risottos. Nutritionally, these plants are high in dietary fiber—providing up to 7 grams per medium artichoke heart—supporting digestive health, while the compound cynarin contributes to their characteristic bitterness and potential digestive benefits.^[45]^[46]^[47]

Medicinal and Industrial Uses

Cynara species, particularly C. cardunculus and C. scolymus, have been employed in traditional medicine for their therapeutic properties, with leaf extracts rich in bioactive compounds such as cynarin and luteolin serving as key components in herbal teas and supplements. These extracts have historically been used to support liver health by promoting bile production and protecting against hepatic damage, as documented in ancient practices dating back to Egyptian, Greek, and Roman civilizations. In Greek and Roman medicine, Cynara preparations were valued as diuretics to reduce fluid retention and as digestive aids to alleviate dyspepsia and biliary disorders.^[48]^[49]^[50] Modern pharmacological studies have substantiated these traditional applications, highlighting the role of artichoke leaf extract (ALE) in cholesterol reduction through inhibition of cholesterol synthesis and enhancement of bile acid excretion, with clinical trials showing reductions in total and LDL cholesterol levels in hypercholesterolemic patients. Cynarin, a caffeoylquinic acid derivative, contributes to hepatoprotective effects by mitigating oxidative stress and inflammation in liver injury models induced by toxins. Furthermore, contemporary research emphasizes the antioxidant properties of polyphenols and flavonoids in Cynara extracts, which scavenge free radicals and exhibit anti-inflammatory activity, supporting their use in supplements for metabolic health.^[51]^[52]^[53] Beyond medicinal applications, Cynara cardunculus serves industrial purposes, notably as a biomass source for biofuel production due to its high cellulose content, yielding 10-20 tons of dry matter per hectare annually under Mediterranean conditions, which facilitates efficient conversion to bioethanol and biogas. Flower extracts from C. cardunculus act as vegetable coagulants in cheesemaking, particularly for traditional Iberian varieties like Serpa and other Protected Designation of Origin cheeses in Portugal and Spain, where proteases in the extracts hydrolyze caseins to form soft, flavorful curds without animal rennet. Additionally, the plant demonstrates potential in bioremediation, exhibiting tolerance to heavy metals such as cadmium and arsenic in contaminated soils, with cultivars like Spagnolo effectively accumulating these metals in aboveground biomass for phytoremediation strategies.^[54]^[55]^[56]

Diversity

Accepted Species

The genus Cynara comprises 9 accepted species, primarily perennial herbs native to the Mediterranean basin, Middle East, and northwestern Africa, characterized by their large, composite flower heads (capitula) and spiny foliage. Recent taxonomic revisions recognize these species based on morphological traits such as capitulum size, leaf shape, and geographical distribution.^[2] Cynara algarbiensis is an Iberian endemic restricted to southern Portugal and Spain, featuring compact rosettes and small, spiny capitula adapted to rocky, coastal habitats.^[57] Cynara auranitica occurs in the Middle East, from Syria and Lebanon to Iran, distinguished by its tall stems and large, purplish capitula up to 8 cm wide.^[28] Cynara baetica is native to the southwestern Mediterranean, including southern Spain and northern Morocco, with robust growth and involucral bracts that are conspicuously spined. Cynara cardunculus, the most widespread species across Macaronesia and the Mediterranean, includes cultivated varieties such as the globe artichoke (C. cardunculus var. scolymus) and cardoon, notable for its massive, edible capitula exceeding 10 cm in diameter and silvery leaves.^[3] Cynara cornigera is confined to northwestern Africa, particularly Morocco, and is identified by its horn-like spines on the involucral bracts and preference for arid slopes.^[58] Cynara cyrenaica, endemic to Libya and eastern Crete, exhibits disjunct distribution and small, solitary capitula suited to sandy, coastal environments; it is considered Endangered due to limited range.^[59] Cynara humilis ranges across the Mediterranean and Canary Islands, characterized by its dwarf habit, low-growing stems, and pale yellow flowers emerging from basal leaf clusters.^[60] Cynara syriaca is distributed in Turkey and adjacent Syria, featuring large, globe-shaped capitula similar to the cultivated artichoke and adaptation to semi-arid steppes.^[61] Cynara tournefortii occurs throughout the Mediterranean, from Portugal to Morocco and Greece, recognized by its slender stems and elongated, nodding capitula.^[62] These species generally exhibit self-incompatibility and outcrossing, contributing to their genetic diversity, though endemics like C. algarbiensis and C. cyrenaica are monitored for potential threats from climate change and urbanization.^[2]

Infraspecific Taxa

The genus Cynara includes several infraspecific taxa, primarily within C. cardunculus and C. baetica, reflecting variations in morphology, geography, and cultivation history. In C. cardunculus, two subspecies are recognized: subsp. cardunculus, which encompasses cultivated forms such as the cardoon (C. cardunculus subsp. cardunculus) and the globe artichoke (formerly classified as C. scolymus but now sunk into subsp. cardunculus), characterized by broadly obtuse to long-acuminate middle involucral bracts that are spineless or bear slender spines up to 9 mm long; and subsp. flavescens, a wild form native to North Africa with acute to short-acuminate bracts armed with stout spines 2–5 mm long, often associated with invasive weedy populations.^[63] Domestication within C. cardunculus has involved selective breeding for agricultural traits, including hybrids and varieties optimized for enlarged, non-spiny inflorescences in globe artichoke cultivars and gigantism in leaf stalks for cardoon selections, leading to reduced genetic diversity compared to wild populations.^[64] Genetic studies indicate a demographic bottleneck in globe artichoke cultivars, with significantly lower allelic richness (4.45) and total alleles (157) than in wild cardoon populations (allelic richness up to 16.99, total alleles 607), reflecting multiple rounds of human-mediated selection from eastern Mediterranean wild progenitors.^[64] In C. baetica, an endemic species of the western Mediterranean, two subspecies are distinguished: subsp. baetica, occurring in southwestern Spain and northern Morocco with dark-margined capitulum bracts and whitish veins on leaf undersides; and subsp. maroccana (formerly C. hystrix), restricted to Morocco and characterized by similar but regionally adapted morphological traits. Other species in the genus, such as C. humilis, lack recognized infraspecific taxa, though minor varietal distinctions have been proposed in some regional floras without broad acceptance.

References

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Carbon footprint of the globe artichoke supply chain in Southern Italy
Mar 10, 2023 · The globe artichoke represents one of the leading vegetables worldwide, accounting for a global production of 1.52 Mt in 2020, and Italy is ...
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Artichoke Nutrition Facts and Health Benefits - Verywell Fit
Sep 14, 2024 · Artichoke Nutrition Facts · Calories: 64 · Fat: 0.4g · Sodium: 72mg · Carbohydrates: 14g · Fiber: 7g · Sugars: 1.2g · Protein: 3.5g · Vitamin C: 8.9mg ...
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Nutritional value and chemical composition of Greek artichoke ...
Nov 30, 2018 · The nutritional value of globe artichoke is attributable to its low fat content and its high content of minerals, fibre, vitamins and ...
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Cardoon Culinary Guide: How to Cook With Cardoons - MasterClass
Jul 24, 2025 · They retain a juicy, crisp bite when steamed, sautéed, or braised in stews and soups and turn velvety-soft in baked dishes like gratin. Cardoons ...
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Functional and Therapeutic Potential of Cynara scolymus in Health ...
Mar 17, 2024 · Cynara cardunculus var. scolymus serves as a functional food supplement with a high concentration of bioactive compounds, which offers various health-promoting ...
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Artichoke Uses, Benefits & Dosage - Drugs.com
Dec 23, 2024 · Artichoke has been used traditionally to treat a variety of conditions, including hepatic diseases, jaundice, dyspepsia, and chronic albuminuria.
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Globe artichoke: A functional food and source of nutraceutical ...
This plant has been appreciated by the ancient Egyptians, Greeks, and Romans, who used it both as a food and as a medicine (for their beneficial effects ...Missing: traditional | Show results with:traditional
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Review The effect of artichoke on lipid profile - ScienceDirect.com
Cooked artichoke (Cynara scolymus) hearts or artichoke leaf extract (ALE) are believed to be helpful in the treatment of dyslipidaemia.
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The Protective Effect of Cynara Cardunculus Extract in Diet-Induced ...
Indeed, evidence exists that cynarin and caffeoylquinic acids lead to liver protection in models of liver injury produced by hepatotoxic agents such as carbon ...
[54]
Bioactive Compounds from Artichoke and Application Potential - PMC
Artichoke contains polyphenols, flavonoids, and other compounds with antioxidant, anti-inflammatory, and antimicrobial properties. It has uses in food, ...
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Biomass, Seed and Energy Yield of Cynara cardunculus L. as ...
Oct 11, 2020 · When compared to the plain, plants that were grown in the hills gave higher biomass yield (10.9 vs. 9.7 t DM ha−1 year−1), higher seed yield ( ...
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Plant Milk-Clotting Enzymes for Cheesemaking - PMC - NIH
Mar 18, 2022 · In the Iberian Peninsula, the C. cardunculus extract containing these proteases is used to produce many cheeses that have a characteristic soft ...
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a trial on an industrial soil highly contaminated by heavy metals
Jan 7, 2020 · The cultivar Spagnolo, harmonizing a high ability of metal uptake and tolerance, proved the most efficient cultivar in metal phytoremediation.
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Cynara - The WFO Plant List
Species in Cynara ( showing species 1 to 10 of 12) ; Cynara cardunculus var. ferocissima, Lowe, Man. Fl. Madeira 1: 498 (1868) ; Cynara hortensis, Mill. Gard.
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Cynara algarbiensis Coss. ex Mariz - Plants of the World Online
Cynara algarbiensis Coss. ex Mariz ... The native range of this species is S. Portugal to Spain. Taxonomy · Images · General information.
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Cynara cornigera Lindl. | Plants of the World Online | Kew Science
Genus. Cynara · View in Tree of Life opens in a new tab. Species. Cynara cornigera. Kew's Tree of Life Explorer. Discover the flowering plant tree of life and ...
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Cynara cyrenaica Maire & Weiller | Plants of the World Online
This species is accepted. The native range of this species is Kriti, Libya. Taxonomy · Images · General information. Distribution; Classification; Publications ...
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Cynara humilis L. | Plants of the World Online | Kew Science
POWO follows these authorities in accepting this name: Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.
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Cynara syriaca Boiss. | Plants of the World Online | Kew Science
Cynara syriaca Boiss. ... The native range of this species is Syria to Israel. It grows primarily in the subtropical biome.
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Cynara tournefortii Boiss. & Reut. - Plants of the World Online
The native range of this species is S. Portugal to Central & S. Spain, Morocco. It is a perennial and grows primarily in the subtropical biome.
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Cynara cardunculus - FNA - Flora of North America
Nov 5, 2020 · Wiklund recognized two subspecies of C. cardunculus: subsp. cardunculus includes the artichoke, cardoon, and various wild types; subsp.Missing: Debate | Show results with:Debate
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https://doi.org/10.1093/aob/mct150