Leontodon
(Redirected from Hawkbit)
| Leontodon | |
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| Leontodon hispidus L. | |
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| Seed-head of Leontodon hispidus | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Cichorioideae |
| Tribe: | Cichorieae |
| Subtribe: | Hypochaeridinae |
| Genus: | Leontodon L. |
| Synonyms[1] | |
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List
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Leontodon is a genus of plants in the tribe Cichorieae within the family Asteraceae, commonly known as hawkbits.
Their English name derives from the mediaeval belief that hawks ate the plant to improve their eyesight. Although originally only native to Eurasia and North Africa, some species have since become established in other countries, including the United States[2] and New Zealand.[3]
Recent research has shown that the genus Leontodon in the traditional delimitation is polyphyletic. Therefore, the former Leontodon subgenus Oporinia was raised to generic level.[4] According to the nomenclatural rules the name Scorzoneroides has priority at generic level and therefore, the members of Leontodon subgenus Oporinia were transferred to the re-erected genus Scorzoneroides.[5]
Ecology
[edit]Seeds of Leontodon species are an important food source for certain bird species.[6]
Uses
[edit]In Crete, the roots of the species Leontodon tuberosus are eaten raw and its leaves are eaten steamed.[7]
Secondary metabolites
[edit]The genus Leontodon s.str. (i.e. excluding the members of the resurrected genus Scorzoneroides) is a rich source of hypocretenolides, unique guaiane type sesquiterpene lactones with a 12,5-lactone ring instead of the usual 12,6 lactone ring.[8]
Phenolics found in Leontodon species include luteolin type flavonoids and caffeoyl quinic acid derivatives such as chlorogenic acid and 3,5-dicaffeoylquinic acid. Moreover, Leontodon species contain the caffeoyl tartaric acid derivatives caffeoyl tartaric acid and cichoric acid.[9][10]
Species
[edit]The following species are recognised in the genus Leontodon:[1]
- Leontodon albanicus (F.K.Mey.) F.Conti
- Leontodon anomalus Ball
- Leontodon apulus (Fiori) Brullo
- Leontodon asperrimus (Willd.) Endl.
- Leontodon balansae Boiss.
- Leontodon berinii (Bartl.) Roth
- Leontodon biscutellifolius DC.
- Leontodon boryi Boiss. ex DC.
- Leontodon bourgaeanus Willk.
- Leontodon caroliaedoi Talavera & M.Talavera
- Leontodon × carreiroi (Gand.) M.Moura & L.Silva
- Leontodon caucasicus (M.Bieb.) Fisch.
- Leontodon crispus Vill.
- Leontodon djurdjurae Coss. & Durieu ex Batt. & Trab.
- Leontodon dubius (Hoppe) Poir.
- Leontodon eriopodus Emb. & Maire
- Leontodon farinosus Merino & Pau
- Leontodon filii (Hochst. ex Seub.) Paiva & Ormonde
- Leontodon × friasi M.Moura & Silva
- Leontodon graecus Boiss. & Heldr.
- Leontodon × grassiorum Zidorn
- Leontodon hellenicus Phitos
- Leontodon hirtus L.
- Leontodon hispidus L.
- Leontodon hochstetteri M.Moura & Silva
- Leontodon hyoseroides Welw. ex Rchb.
- Leontodon incanus (L.) Schrank
- Leontodon intermedius Huter, Porta & Rigo
- Leontodon kotschyi Boiss.
- Leontodon kulczynskii Popov
- Leontodon libanoticus Boiss.
- Leontodon longirostris (Finch & P.D.Sell) Talavera
- Leontodon maroccanus (Pers.) Ball
- Leontodon oxylepis Boiss. & Heldr.
- Leontodon pinetorum Pau
- Leontodon pitardii Maire
- Leontodon rigens (Aiton) Paiva & Ormonde
- Leontodon rosanoi (Ten.) DC.
- Leontodon saxatilis Lam.
- Leontodon siculus (Guss.) Nyman
- Leontodon stenocalathius Rech.f.
- Leontodon tenuiflorus (Gaudin) Rchb.
- Leontodon tingitanus (Boiss. & Reut.) Ball
- Leontodon tuberosus L.
- Leontodon × vegetus Finch & P.D.Sell
Further reading
[edit]- Euro+Med Plantbase
- Battandier, J. A.; L. Trabut (1902). Flore de l'Algérie et de la Tunisie. Alger.
{{cite book}}: CS1 maint: location missing publisher (link) - Blatter, E. (1921). Flora Arabica II: Leguminosae-Compositae. Calcutta.
{{cite book}}: CS1 maint: location missing publisher (link) - Boulos, L. (2002). Flora of Egypt. Cairo.
{{cite book}}: CS1 maint: location missing publisher (link) - Danin, A. (2004). Distribution atlas of plants in the Flora Palaestina area. Jerusalem.
{{cite book}}: CS1 maint: location missing publisher (link) - Davis, P. (1975). Flora of Turkey Vol. 5. Edinburgh.
{{cite book}}: CS1 maint: location missing publisher (link) - Finch, R. A.; P. D. Sell (1976). "Leontodon L.". In Tutin, T. G.; Heywood, V. H.; Burges, N. A.; Moore, D. M.; Valentine, D. H.; Walters S. M.; Webb D. A. (eds.). Flora Europaea. Vol. 4. Cambridge.
{{cite book}}: CS1 maint: location missing publisher (link) - Jafri, S.M.H.; A. El-Gadi (1983). Flora of Libya. Tripoli.
{{cite book}}: CS1 maint: location missing publisher (link) - Jahandiez, E.; R. Maire (1934). Catalogue des plantes du Maroc. Vol. 3. Alger.
{{cite book}}: CS1 maint: location missing publisher (link) - Moutérde, P. (1983). Nouvelle flore du Liban et de la Syrie. Beyrouth.
{{cite book}}: CS1 maint: location missing publisher (link) - Pittoni, H. (1977). "Leontodon". In K. H. Rechinger (ed.). Flora Iranica. Vol. 122. Graz.
{{cite book}}: CS1 maint: location missing publisher (link) - Quézel, P.; S. Santa (1963). Nouvelle flore de l'Algérie et des régions désertiques méridionales. Paris.
{{cite book}}: CS1 maint: location missing publisher (link) - Rechinger, K. H. (1964). Flora of lowland Iraq. Weinheim.
{{cite book}}: CS1 maint: location missing publisher (link) - Vassilev, V. N. (2000). Leontodon. In Bobrov, E. G. & Tzevelev, N. N. Flora of the USSR 29: Compositae, Cichorieae, pages 204-218. Enfield.
{{cite book}}: CS1 maint: location missing publisher (link) - Widder, F.J. (1975). "Die Gliederung der Gattung Leontodon". Phyton (Horn, Austria). 17: 23–29. ISSN 0079-2047.
- Zidorn, C. (2012). "Leontodon and Scorzoneroides (Asteraceae, Cichorieae) in Italy". Plant Biosystems. 146 (Suppl. 1). Taylor & Francis: 41–51. Bibcode:2012PBios.146S..41Z. doi:10.1080/11263504.2012.710272. ISSN 1126-3504. S2CID 86770322.
- Zohary, M. (1978). Flora Palaestina Vol. 3. Jerusalem.
{{cite book}}: CS1 maint: location missing publisher (link)
References
[edit]- ^ a b "Leontodon L. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2023-11-14.
- ^ "52. Leontodon Linnaeus", Flora of North America
- ^ "LEONTODON L.", Flora of New Zealand
- ^ Rosabelle Samuel; Walter Gutermann; Tod F. Stuessy; Claudete F. Ruas; Hans-Walter Lack; Karin Tremetsberger; Salvador Talavera; Barbara Hermanowski; Friedrich Ehrendorfer (2006), "Molecular phylogenetics reveals Leontodon (Asteraceae, Lactuceae) to be diphyletic", American Journal of Botany, 93 (8): 1193–1205, doi:10.3732/ajb.93.8.1193, PMID 21642184
- ^ Greuter, W.; Gutermann, W. & Talavera, S. (2006), "A preliminary conspectus of Scorzoneroides (Compositae, Cichorieae) with validation of the required new names" (PDF), Willdenowia, 36 (2): 689–692, doi:10.3372/wi.36.36204, ISSN 0511-9618, S2CID 85657923, archived from the original (PDF) on 2012-03-06
- ^ D. L. Buckingham; W. J. Peach (2005). "The influence of livestock management on habitat quality for farmland birds". Animal Science. 81 (2): 199–203. doi:10.1079/asc50700199.
- ^ Kleonikos G. Stavridakis; Κλεόνικος Γ. Σταυριδάκης (2006). Wild edible plants of Crete - Η Άγρια βρώσιμη χλωρίδα της Κρήτης. Rethymnon Crete. ISBN 960-631-179-1.
- ^ Zidorn, C. (2008). "Sesquiterpene lactones and their precursors as chemosystematic markers in the tribe Cichorieae of the Asteraceae". Phytochemistry. 69 (12): 2270–2296. Bibcode:2008PChem..69.2270Z. doi:10.1016/j.phytochem.2008.06.013. ISSN 0031-9422. PMID 18715600.
- ^ Zidorn, C.; Stuppner, H. (2001). "Evaluation of chemosystematic characters in the genus Leontodon". Taxon. 50: 115–133. doi:10.2307/1224515. ISSN 0040-0262. JSTOR 1224515.
- ^ Sareedenchai, V.; Zidorn, C. (2010). "Flavonoids as chemosystematic markers in the tribe Cichorieae of the Asteraceae". Biochemical Systematics and Ecology. 38 (5): 935–957. Bibcode:2010BioSE..38..935S. doi:10.1016/j.bse.2009.09.006. ISSN 0305-1978.
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