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{{Key Start | id = 5152
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{{DISPLAYTITLE:''Ranunculus''}}
| title = Ranunculus  
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Die Gattung ''Ranunculus'' (Hahnenfuß, [[Ranunculaceae]]) ist mit über 500 Arten vor allem in den gemäßigten Zonen verbreitet und auch im deutschsprachigen Raum recht artenreich.
| description =
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| source = Dichotomous key exported in Wiki format from Dryades / KeyToNature.
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| common names    =
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| parent key      =
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| creators        = Pier-Luigi Nimis
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| language        = en
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| category        =
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| geoscope        = Germany
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| audience        =
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| status          =
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| edited by        =
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| general review by=
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| nomreview  by    =
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| expert review by =
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}}
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{{Lead | 1  | Flowers white
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Alle ''Ranunculus''-Arten sind giftig, wobei die Giftstoffe durch Trocknung abgebaut werden. Viele Arten sind geschützt!
| image j = File:Dryades_Ranunculyacqua.jpg | 2 }}
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{{Lead | 1*  | Flowers yellow
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| image j = File:Dryades_ranunkuly.jpg | 25 }}
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{{Lead | 2   | Plants terrestrial, or if aquatic with well-developed basal leaves
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<div align="center">
  | image j = File:Dryades_pianteterra.jpg | 3 }}
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{{Key Start | id = ran
{{Lead | 2* | Plants aquatic, with leaves all cauline and floating in water
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| collapsed = 1
  | image j = File:Dryades_pianteacqua.jpg | 10 }}
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| title      = ''Ranunculus''
 +
| parent taxon = Ranunculaceae
 +
| category   = Flora (Schlüssel)
 +
| geoscope  = Europa
 +
  | status    = (fertig)
 +
| edited by  = S. von Mering
 +
| flags = jkey-nocontrols
 +
}}  
 +
{{Decision Horizontal
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| id = 1
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  | hide id = 1
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| alt 1    =
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| lead 1  =
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| result 1 =  Gelb blühende ''Ranunculus''-Arten
 +
| result text 1 =
 +
  | image 1a  = File:Ranunculus_acris_JuliaKruse_1_bearb.jpg
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| caption 1a = Gelb blühende ''Ranunculus''-Arten
 +
| images 1 width = 200
  
{{Lead | 3   | Leaves >5 times as long as wide
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| alt 2    =
  | result = Ranunculus kuepferi subsp. kuepferi
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| lead 2   =
  | result text = Ranunculus kuepferi Greuter & Burdet subsp. kuepferi
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  | result 2 = Weiß blühende ''Ranunculus''-Arten
  | description =
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  | result text 2 =  
  | remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5329 Italian Dryades Species Page]
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  | image 2a = File:Ranunculus_aconitifolius _JuliaKruse_1_bearb.jpg
  | image j = File:Dryades_TSB71767.jpg
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  | caption 2a = Weiß blühende ''Ranunculus''-Arten
}}
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  | images 2 width = 200
{{Lead | 3*  | Leaves <5 times as long as wide | 4 }}
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}}
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{{Key End}}
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</div>
  
{{Lead | 4  | Leaves heart-shaped
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=== Hinweise zu ähnlichen Gattungen ===
| result = Ranunculus parnassifolius
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Einige Hahnenfuß-Arten können von Anfängern oder bei "schnellem" (unaufmerksamem) Bestimmen leicht mit Vertretern anderer Gattungen verwechselt werden!
| result text = Ranunculus parnassifolius L.
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| description =
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4107 Italian Dryades Species Page]
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}}
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{{Lead | 4*  | Leaves not heart-shaped | 5 }}
+
  
{{Lead | 5  | Plants of woody habitats, > 3 dm tall | 6 }}
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Bei Unsicherheit oder zur Fehlervermeidung kann die besondere Beachtung folgender Merkmale hilfreich sein:
{{Lead | 5*  | Plants of alpine meadows, < 3 dm tall | 7 }}
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* Nebenblätter: bei ''Ranunculus'' fehlend, aber bei ähnlichen Rosaceae wie z. B. ''Potentilla'' vorhanden.
 
+
* Blütenhülle: bei ''Ranunculus'' doppelt (mit kelchblattartigen Perigonblättern und kronblattartigen Nektarblättern), bei ''Caltha'' einfach.
{{Lead | 6  |  Basal leaves incompletely divided. Flower pedicels hairless
+
* Blütenblätter stark glänzend.
| result = Ranunculus platanifolius
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<!--- SvM: kann und sollte überarbeitet und ergänzt werden -->
| result text = Ranunculus platanifolius L.
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| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4112 Italian Dryades Species Page]
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| image j = File:Dryades_TSB72295.jpg
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}}
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{{Lead | 6* |  Basal leaves completely divided. Flower pedicels hairy
+
| result = Ranunculus aconitifolius
+
| result text = Ranunculus aconitifolius L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5429 Italian Dryades Species Page]
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| image j = File:Dryades_TSB49720.jpg
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}}
+
 
+
{{Lead | 7  | Sepals covered by rusty-red hairs
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| result = Ranunculus glacialis
+
| result text = Ranunculus glacialis L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4108 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB55853.jpg
+
}}
+
{{Lead | 7*  | Sepals glabrous or with white hairs | 8 }}
+
 
+
{{Lead | 8  |  Stems hairy. Leaves 2-3-palmately divided. Receptacle hairy (lens!)
+
| result = Ranunculus seguierii subsp. seguierii
+
| result text = Ranunculus seguierii Vill. subsp. seguierii
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4109 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB72629.jpg
+
}}
+
{{Lead | 8*  |  Stems glabrous. Basal leaves simply palmately-divided. Receptacle hairless | 9 }}
+
 
+
{{Lead | 9  |  Basal leaves incompletely divided. Stem leaves 3-forked
+
| result = Ranunculus alpestris
+
| result text = Ranunculus alpestris L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4110 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB72630.jpg
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}}
+
{{Lead | 9*  |  Basal leaves completely divided. Stem leaves usually simple
+
| result = Ranunculus traunfellneri
+
| result text = Ranunculus traunfellneri Hoppe
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4111 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB32545.jpg
+
}}
+
 
+
{{Lead | 10  | All leaves divided into hair-like segments | 11 }}
+
{{Lead | 10*  | At least the upper leaves clearly flattened | 17 }}
+
 
+
{{Lead | 11  | Leaves usually >8 cm long, shorter than internodes, their segments usually parallel to the main axis
+
| result = Ranunculus fluitans
+
| result text = Ranunculus fluitans Lam.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9474 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB20783.jpg
+
}}
+
{{Lead | 11* | Leaves always much shorter than 8 cm, shorter than internodes, thir segments usually spreading | 12 }}
+
 
+
{{Lead | 12  | Leaves circular in outline, the leaf-segments lying in one plane
+
| result = Ranunculus circinatus
+
| result text = Ranunculus circinatus Sibth.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2697 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71062.jpg
+
}}
+
{{Lead | 12*  | Leaves not circular in outline, the leaf-segments not lying in one plane | 13 }}
+
 
+
{{Lead | 13  | Ripe fruits winged. Sepals usually blue-spotted
+
| result = Ranunculus peltatus subsp. baudotii
+
| result text = Ranunculus peltatus Schrank subsp. baudotii (Godr.) C.D.K. Cook
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=6300 Italian Dryades Species Page]
+
}}
+
{{Lead | 13*  | Ripe fruits unwinged. Sepals not blue-spotted | 14 }}
+
 
+
{{Lead | 14  | Petals 5-15 (-21) mm long, contiguous. Nectaries circular to pear-shaped | 15 }}
+
{{Lead | 14* | Petals 3-5.5 mm long, not contiguous. Nectaries sickle-shaped | 16 }}
+
 
+
{{Lead | 15  | Thread-like leaves shorter than internodes, the segments strongly diverging
+
| result = Ranunculus aquatilis
+
| result text = Ranunculus aquatilis L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2698 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71063.jpg
+
}}
+
{{Lead | 15*  | Thread-like leaves longer than internodes, the segments more or less parallel to each other
+
| result = Ranunculus penicillatus subsp. penicillatus
+
| result text = Ranunculus penicillatus (Dumort.) Bab. subsp. penicillatus
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=6301 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB60105.jpg
+
}}
+
 
+
{{Lead | 16  | Fruits > 1.5 mm long
+
| result = Ranunculus trichophyllus
+
| result text = Ranunculus trichophyllus Chaix s.l.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2700 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB49578.jpg
+
}}
+
{{Lead | 16*  | Fruits < 1 mm long
+
| result = Ranunculus rionii
+
| result text = Ranunculus rionii L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9475 Italian Dryades Species Page]
+
}}
+
 
+
{{Lead | 17  | Hair-like leaves completely absent | 18 }}
+
{{Lead | 17*  | At least some leaves divided into hair-like segments | 21 }}
+
 
+
{{Lead | 18  | Fruits pubescent (lense!)
+
| result = Ranunculus peltatus subsp. peltatus
+
| result text = Ranunculus peltatus Schrank subsp. peltatus
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2696 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB59404.jpg
+
}}
+
{{Lead | 18*  | Fruit glabrous | 19 }}
+
 
+
{{Lead | 19  | Receptacle hairless
+
| result = Ranunculus hederaceus
+
| result text = Ranunculus hederaceus L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9465 Italian Dryades Species Page]
+
}}
+
{{Lead | 19*  | Receptacle hairy | 20 }}
+
 
+
{{Lead | 20  |  Honey-leaves <6 mm, not contiguous. Receptacle globose
+
| result = Ranunculus tripartitus
+
| result text = Ranunculus tripartitus DC.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9466 Italian Dryades Species Page]
+
}}
+
 
+
{{Lead | 20*  |  Honey-leaves >6 mm, contiguous. Receptacle longer than wide
+
| result = Ranunculus peltatus subsp. baudotii
+
| result text = Ranunculus peltatus Schrank subsp. baudotii (Godr.) C.D.K. Cook
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9467 Italian Dryades Species Page]
+
}}
+
 
+
{{Lead | 21  | Honey-leaves <6 mm, not contiguous
+
| result = Ranunculus tripartitus
+
| result text = Ranunculus tripartitus DC.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9468 Italian Dryades Species Page]
+
}}
+
{{Lead | 21*  | Honey-leaves >6 mm, contiguous | 22 }}
+
 
+
{{Lead | 22  |  Immature fruits minutely hairy (lens!). Laminar leaves 3-5 lobed, usually to less than 2/3 of the blade | 23 }}
+
{{Lead | 22*  |  Immature fruits hairless. Laminar leaves 3-lobed to at least 2/3 of the blade | 24 }}
+
 
+
{{Lead | 23  |  Fruit pedicels <5 cm, rarely longer than the corresponding laminar leaf. Honey-leaves <1 cm. Nectaries circular
+
| result = Ranunculus aquatilis
+
| result text = Ranunculus aquatilis L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9471 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71063.jpg
+
}}
+
 
+
{{Lead | 23*  |  Fruit pedicels >5 cm, often longer than the corresponding leaf. Honey-leaves >1 cm. Nectaries pear-shaped
+
| result = Ranunculus peltatus subsp. peltatus
+
| result text = Ranunculus peltatus Schrank subsp. peltatus
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9472 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB59404.jpg
+
}}
+
 
+
{{Lead | 24  |  Hair-like leaves soft and collapsing when removed from water. Fruit wingless. Receptacle globose. Plant of running water
+
| result = Ranunculus ololeucos
+
| result text = Ranunculus ololeucos Lloyd
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9469 Italian Dryades Species Page]
+
}}
+
{{Lead | 24*  |  Hair-like leaves rigid and not collapsing when extracted from water. Fruit winged. Receptacle ovoid. Plant of brackish water
+
| result = Ranunculus peltatus subsp. baudotii
+
| result text = Ranunculus peltatus Schrank subsp. baudotii (Godr.) C.D.K. Cook
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9470 Italian Dryades Species Page]
+
}}
+
 
+
{{Lead | 25  | Petals >5
+
| result = Ranunculus ficaria
+
| result text = Ranunculus ficaria L. s.l.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=653 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71805.jpg
+
}}
+
{{Lead | 25*  | Petals 5
+
| image j = File:Dryades_ranunkuly.jpg | 26 }}
+
 
+
{{Lead | 26  | All leaves entire | 27 }}
+
{{Lead | 26*  | At least the upper leaves compound or deeply lobed | 31 }}
+
 
+
{{Lead | 27  | Leaves < 4 times as long as wide | 28 }}
+
{{Lead | 27*  | Leaves >4 times as long as wide | 29 }}
+
 
+
{{Lead | 28  |  Plant 5-10 cm tall. Larger leaves  2-3 cm wide
+
| result = Ranunculus hybridus
+
| result text = Ranunculus hybridus Biria
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4118 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71808.jpg
+
}}
+
{{Lead | 28*  | Plant 10-25 cm tall. Larger leaves 4-8 cm wide
+
| result = Ranunculus thora
+
| result text = Ranunculus thora L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5327 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71807.jpg
+
}}
+
 
+
{{Lead | 29  |  Flowers >2 cm across. Stems 2-12 dm tall
+
 
+
| result = Ranunculus lingua
+
| result text = Ranunculus lingua L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2693 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB71229.jpg
+
}}
+
{{Lead | 29*  | Flowers <2 cm across. Stems 1-5 dm tall | 30 }}
+
 
+
{{Lead | 30  |  Stems erect. Larger leaves > 2 mm wide
+
| result = Ranunculus flammula subsp. flammula
+
| result text = Ranunculus flammula L. subsp. flammula
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2694 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB64325.jpg
+
}}
+
{{Lead | 30*  |  Stem prostrate and rooting at nodes. Larger leaves >2 mm wide
+
| result = Ranunculus reptans
+
| result text = Ranunculus reptans L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5328 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB70641.jpg
+
}}
+
 
+
{{Lead | 31  | Head of achenes longer than wide | 32 }}
+
{{Lead | 31*  | Head of achenes globose
+
| image j = File:Dryades_Ranuncula.jpg | 33 }}
+
 
+
{{Lead | 32  | Basal leaves divided into linear segments. Plant perennial
+
| result = Ranunculus illyricus
+
| result text = Ranunculus illyricus L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=670 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB31979.jpg
+
}}
+
{{Lead | 32*  | Basal leaves palmately-lobed. Plant annual
+
| result = Ranunculus sceleratus
+
| result text = Ranunculus sceleratus L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5497 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB61514.jpg
+
}}
+
 
+
{{Lead | 33  | Plant annual | 34 }}
+
{{Lead | 33*  | Plant perennial | 35 }}
+
 
+
{{Lead | 34  | Sepals not deflexed, adpressed to petals
+
| result = Ranunculus sardous
+
| result text = Ranunculus sardous Crantz s.l.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=674 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB32524.jpg
+
}}
+
{{Lead | 34*  | Sepals clearly deflexed
+
| result = Ranunculus arvensis
+
| result text = Ranunculus arvensis L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=675 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB49715.jpg
+
}}
+
 
+
{{Lead | 35  | Stem thickened at the base into a kind of bulb
+
| result = Ranunculus bulbosus
+
| result text = Ranunculus bulbosus L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=673 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB49714.jpg
+
}}
+
{{Lead | 35*  | Stem not thickened into such a bulb | 36 }}
+
 
+
{{Lead | 36  | Stem leaves deeply dissected, at least some basal leaves entire or with shallow lobes
+
| result = Ranunculus auricomus
+
| result text = Ranunculus auricomus L. s.latiss.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=8964 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB70636.jpg
+
}}
+
{{Lead | 36*  | All leaves profoundly divided or compound | 37 }}
+
 
+
{{Lead | 37  | Stems creeping and rooting at nodes | 38 }}
+
{{Lead | 37*  | Stems not creeping and rooting at nodes | 39 }}
+
 
+
{{Lead | 38  | Plant glabrous
+
| result = Ranunculus repens
+
| result text = Ranunculus repens L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=672 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB72574.jpg
+
}}
+
{{Lead | 38*  | Plant hairy
+
| result = Ranunculus serpens subsp. serpens
+
| result text = Ranunculus serpens Schrank subsp. serpens
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=7252 Italian Dryades Species Page]
+
}}
+
 
+
{{Lead | 39  | Fruits with a clearly hooked beak
+
| image j = File:Dryades_uncino.jpg | 40 }}
+
{{Lead | 39*  | Fruits with a non-hooked beak | 44 }}
+
 
+
{{Lead | 40  | Receptacle hairless (lens!)
+
| result = Ranunculus lanuginosus
+
| result text = Ranunculus lanuginosus L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=3003 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB49717.jpg
+
}}
+
{{Lead | 40*  | Receptacle hairy | 41 }}
+
 
+
{{Lead | 41  | Basal leaves with 5(-3) segments, the central one divided for more than half of its length into linear lobes | 42 }}
+
{{Lead | 41*  |  Basal leaves divided into 3 segments, the central one obovate, divided for max. 1/3 in 3 lobes | 43 }}
+
 
+
{{Lead | 42  |  Beak of the fruits strongly curved and forming an almost complete ring
+
| result = Ranunculus serpens subsp. polyanthemophyllus
+
| result text = Ranunculus serpens Schrank subsp. polyanthemophyllus (W. Koch & H.E. Hess) Kerguélen
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4120 Italian Dryades Species Page]
+
}}
+
{{Lead | 42*  | Beak of the fruit weakly curved, never forming an almost complete ring
+
| result = Ranunculus polyanthemos
+
| result text = Ranunculus polyanthemos L.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=8016 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB70640.jpg
+
}}
+
 
+
{{Lead | 43  | Beak of the fruits strongly curved and forming an almost complete ring
+
| result = Ranunculus serpens subsp. nemorosus
+
| result text = Ranunculus serpens Schrank subsp. nemorosus (DC.) G. López
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2687 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB52270.jpg
+
}}
+
{{Lead | 43*  | Beak of the fruit weakly curved, never forming an almost complete ring
+
| result = Ranunculus polyanthemos subsp. polyanthemoides
+
| result text = Ranunculus polyanthemos L. subsp. polyanthemoides (Boreau) Ahlfv.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=7253 Italian Dryades Species Page]
+
}}
+
 
+
{{Lead | 44  | Plant >3 dm tall
+
| result = Ranunculus acris subsp. acris
+
| result text = Ranunculus acris L. subsp. acris
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=2997 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB72296.jpg
+
}}
+
{{Lead | 44*  | Plants to 3 dm tall | 45 }}
+
 
+
{{Lead | 45  | Receptacle hairless
+
| result = Ranunculus pygmaeus
+
| result text = Ranunculus pygmaeus Wahlenb.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=9476 Italian Dryades Species Page]
+
}}
+
{{Lead | 45*  | Receptacle hairy | 46 }}
+
 
+
{{Lead | 46  | Basal leaves hairy also on the blade | 47 }}
+
{{Lead | 46*  |  Basal leaves glabrous or with hairs only on the stalk or along the margin | 48 }}
+
 
+
{{Lead | 47  |  Receptacle hairy throughout (lens!). Stem leaves 10-20 times as long as wide
+
| result = Ranunculus breyninus
+
| result text = Ranunculus breyninus Crantz
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5322 Italian Dryades Species Page]
+
}}
+
{{Lead | 47*  |  Receptacle with a tuft of hairs at the top, otherwise hairless. Stem leaves 5-8 times as long as wide
+
| result = Ranunculus montanus
+
| result text = Ranunculus montanus Willd.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=5325 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB49719.jpg
+
}}
+
 
+
{{Lead | 48  |  Basal leaves completely divided into 3 segments. Stem leaves 10-20 times as long as wide
+
| result = Ranunculus montanus
+
| result text = Ranunculus montanus Willd.
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4121 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB49719.jpg
+
}}
+
{{Lead | 48*  |  Basal leaves incompletely divided into 5(-3) lobes. Stem leaves  5-8 times as long as wide
+
| result = Ranunculus carinthiacus
+
| result text = Ranunculus carinthiacus Hoppe
+
| description = 
+
| remarks =[http://dbiodbs.units.it/carso/chiavi_pub25?usr=admin&n=5152&specie=4122 Italian Dryades Species Page]
+
| image j = File:Dryades_TSB72573.jpg
+
}}
+
{{Key End}}
+

Aktuelle Version vom 18. Januar 2011, 23:41 Uhr

Die Gattung Ranunculus (Hahnenfuß, Ranunculaceae) ist mit über 500 Arten vor allem in den gemäßigten Zonen verbreitet und auch im deutschsprachigen Raum recht artenreich.

Alle Ranunculus-Arten sind giftig, wobei die Giftstoffe durch Trocknung abgebaut werden. Viele Arten sind geschützt!

Ranunculus (Ranunculaceae)
Geographischer Geltungsbereich: Europa — Zusammenarbeit: offen — Stand: (fertig)Bisherige Koautoren: S. von Mering
  
Gelb blühende Ranunculus-Arten
  
Weiß blühende Ranunculus-Arten
Gelb blühende Ranunculus-Arten
Weiß blühende Ranunculus-Arten

Hinweise zu ähnlichen Gattungen

Einige Hahnenfuß-Arten können von Anfängern oder bei "schnellem" (unaufmerksamem) Bestimmen leicht mit Vertretern anderer Gattungen verwechselt werden!

Bei Unsicherheit oder zur Fehlervermeidung kann die besondere Beachtung folgender Merkmale hilfreich sein:

  • Nebenblätter: bei Ranunculus fehlend, aber bei ähnlichen Rosaceae wie z. B. Potentilla vorhanden.
  • Blütenhülle: bei Ranunculus doppelt (mit kelchblattartigen Perigonblättern und kronblattartigen Nektarblättern), bei Caltha einfach.
  • Blütenblätter stark glänzend.
Quelle: Offene Naturführer, Das Wiki zu Bestimmungsfragen: Ranunculus (Deutschland) (Zuletzt geändert:
Dieses Attribut ist ein Spezialattribut in diesem Wiki.
18 Januar 2011 21:41:28). Abgerufen am 2. Juni 2025, 05:05 von https://offene-naturfuehrer.de/web/Ranunculus_(Deutschland)