-
2010.03.26 Lower Austria, district Bruck/Leitha, Braunsberg (south flank, 240 m AMSL).Flowering (march) april (and sometimes again july-october).Common in Eastern Austria.German name: Sand-Frhlings-FingerkrautID: Fischer, Exkursionsflora (2008 3rd)
-
Corte, Veneto, Italy
-
2010.06.04 Vienna XII. (roadside, poplar avenue, 195 m AMSL).Common; here with seeds of Populus nigra.Leaves.German name: Kriech-FingerkrautID: Fischer & al., Exkursionsflora (2008 3rd)
-
Potentilla zimmeteri, Borbas; syn.: Potentilla heptaphylla subsp. australis (Nyman) Gams; (Potentilla australis agg.)Slo.: juni petoprstnik ?Dat.: May 06. 2011Lat.: 44.54635 Long.: 15.17355Code: Bot_512/2011_IMG4839 Habitat: Partly overgrown scree slope, south inclined, calcareous bedrock, open, dry and sunny place, exposed to direct rain, elevation 1.250 m (4.100 feet), alpine phytogeographical region. Substratum: soil among rocks and screePlace: Dabarski Kukovi north of Bake Otarije village, middle Velebit Mountains, Velebit region, Croatia Comment: Determination not completely certain. Taxonomy of Potentilla australis agg. has not been settled yet. Ref.:(1) Personal communication with dr. Botjan Surina, University of Primorska, Science and Research Centre of Koper, Slovenia.(2)
dbiodbs.units.it/carso/chiavi_pub28?usr=admin&n=1168&... (3)
ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=7715413&...
-
Nevada, United States
-
Potentilla tommasiniana F.Schultz, syn.: Potentilla cinerea Chaix & Vill. ssp. tommasiniana (F. Schultz) Gerstb. Potentilla acaulis subsp. tommasiniana (F. Schultz) Sojk, Potentilla arenaria subsp. tommasiniana (F. Schultz) Th. Wolf, Potentilla cinerea subsp. tommasiniana (F. Schultz) Velen.EN: Tommasini's Cinquefoil, DE: Tommasini-FingerkrautSlo.: Tomasinijev petoprstnikDat.: April 7. 2011Lat.: 46.05645 Long.: 13.50038Code: Bot_501/2011_IMG4299Habitat: Grassland next to a local road; slightly inclined hill slope, southwest aspect; dry place; full sun; elevation 135 m (440 feet); average precipitations 1.800-2.000 mm/year, average temperature 12-14 deg C, Sub-Mediterranean phytogeographical region. Substratum: soil.Place: Northeast of village Golo Brdo, next to the first switchback of the road leading east toward village Kobana, Gorika Brda, Slovenia EC.Comment: Potentilla tommasiniana is another beautiful species of large genus cinquefoil Potentilla. It is named by Muzio Tommasini an amateur botanist from Trieste, Italy active in 19th century, who was thoroughly familiar with flora of surrounding territories, which are today parts of Slovenia. Potentilla tommasiniana is primarily a warmth loving East (sub)Mediterranean species. At first glance it doesn't differ much from other yellow blooming relatives. The main characteristics are grayish-green, densely haired leaves and stalks, presence of stellate hairs (in addition to other types of hairs), ternate ground leaves (upper ones are often palmate with five leaflets) and inflorescences with several flowers. However, Potentilla tommasiniana is very variable and its taxonomy is quite unsettled. Some sources do not recognize it at all and consider it as a synonym of Potentilla cinerea (Ref.: 5). Others recognize it on subspecies level either as Potentilla cinerea ssp. tommasiniana (Ref.: 3, 8) or of Potentilla acaulis ssp. tommasiniana (Ref.: 11) or Potentilla arenaria var. tommasiniana (Flora Europaea cited in Ref.: 9). The EuroMed Plant Database (Ref.: 4), Slovenian botany key (Ref. 2) as well as Croatian key (Ref.: 7) and several other sources recognize it on species level. Aeschimann, Flora Alpina (Ref.: 8) considers Potentilla tommasiniana taxonomically questionable taxon. The species is known from warmer regions of northeast Italy (Ref.: 6, 11), southwest Slovenia (Ref.: 10) and warmer regions of Croatia, Bosnia and Hercegovina (Ref.: 9). Ref.:(1) Personal communication with Dr. Igor Dakskobler, Jovan Hadi Institute of Biology, Slovenian Academy of Sciences and Arts (2) A. Martini et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnina Zaloba Slovenije (2007), p 255. (3) W.K. Rottensteiner, Exkursionsflora fr Istrien, Verlag des Naturwissenschaftlichen Vereins Krten (2014), p 817.(4)
ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameCache=Poten... (accessed Oct.22. 2018)(5) Flora Croatica Database (FCD), Department of Botany, Faculty of science, FER-ZPR, University of Zagreb (2004);
hirc.botanic.hr/fcd (accessed Oct. 23. 2018)(6) KeytoNature / Dryades Project
dbiodbs.units.it/carso/chiavi_pub28?usr=admin&n=960&a... (accessed Oct. 22. 2018)(7) R. Domac, Flora Hrvatske (Flora of Croatia) (in Croatian), kolska Knjiga, Zagreb (1994), p 174.(8) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 2., Appendix A4, Haupt (2004), p 1187.(9) S. Redzic, Chorologic and phenological characteristics of the populations of the species Potentilla tommasiniana F.W. Schultz in Bosnia and Herzegovina, Stvdia Botanica 12: 219-235, 1994. (10) N. Jogan (ed.), Gradivo za Atlas flore Slovenije (Materials for the Atlas of Flora of Slovenia), CKSF (2001), p 299.(11) L. Poldini, Nuovo Atlante corologico delle piante vascolari nel Friuli Venezia Giulia, University of Trieste (2002), p 383.
-
Potentilla aurea L.Golden Cinquefoil, DE: Gold-FingerkrautSlo.: zlati petoprstnik, zlati prstnikDat.: June 6. 2015Lat.: 46.43721 Long.: 13.63978Code: Bot_884/2015_IMG8131Habitat: Stony alpine grassland, road side, southwest oriented mountain slope; open, sunny and dry place; calcareous, skeletal ground, exposed to direct rain, elevation 1.860 m (6.100 feet), average precipitations ~ 3.000 mm/year, average temperature 0 - 2 deg C, alpine phytogeographical region.Substratum: soil.Place: Mt. Mangart flats, at the beginning of the access road to the mountain cottage 'Koa na Mangartu', East Julian Alps, Posoje, Slovenia EC. Comment: Potentilla aurea is a common and eye-catching plant of Julian Alps. Its numerous, deep yellow flowers are noticed from far. Yet, it has a close relative, namely Potentilla crantzii, which is very similar to it in habitus and flower size, shape and color and it is even more frequent. Both species grow in the whole Alpine belt and other European mountains. If one wants to distinguish between both, he has to look at their leaves carefully. They are generally similar too, but Potentilla aurea has long, half appressed, silky hairs along their edge. These hairs are often so dense that the leaves seem to have a silvery band all around, but sometimes they are not so conspicuous and a hand lens is of great help to see them. According to literature, there is another distinguishing parameter - size of the top-most, middle tooth of the serrate leaves. With Potentilla aurea it should be smaller than other teeth, while with Potentilla crantzii it should be of about the same size. But, to my experience, this trait is variable and one has to observe several leaves before making a decision. Also the yellow color of the flowers of the Potentilla aurea is deeper and more golden than with Potentilla crantzii. However, also here the flower color is variable and one needs some experience with both species to be able to differentiate them based on flower color only. Ref.:(1) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 772.(2) T. Wraber, 2 x Sto alpskih rastlin na Slovenskem, Preernova druba (2006) (in Slovene), p 81.(3) A. Martini et all., Mala Flora Slovenije, Tehnina Zaloba Slovenije (2007) (in Slovene), p 255. (4) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora sterreich Liechtenstein, Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 483.
-
Potentilla micrantha Ramond ex DC.Pink Barren Strawberry, DE: Kleibltiges Fingerkraut, Erdbeer-FingerkrautSlo.: drobnocvetni petoprstnikLat.: 46.19273 Long.: 13.75696Code: Bot_937/2016_DSC0603Habitat: small woodland openings in predominantly broad leaved wood, Fagus sylvatica and Ostrya carpinifolia dominant with some scattered Picea abies; calcareous (Bot_937/2016_DSC0595) and marly (Bot_937/2016_DSC0603) ground; steep mountain slope, southwest aspect; warm and moderately dry place; elevation 610 m (2.000 feet) (Bot_937/2016_DSC0595) and 760 m (2.500 feet) (Bot_937/2016_DSC0603); average precipitations ~ 2.500 mm/year, average temperature 8-10 deg C, alpine phytogeographical region. Substratum: soil.Place: Tolmin region, next to the trail from village abe to Mt. Tolminski Triglav, 1.142 m (3.750 feet), above conspicuous calcareous cliffs, East Julian Alps, Posoje, Slovenia EC.Comment: Potentilla micrantha is one of about ten white blooming species of very large genus Potentilla and similarly looking Fragaria. Many more than that bloom yellow. It is a common plant neither in Slovenia nor in neighboring Austria and Italy nor in Switzerland. On the other hand it is very widely distributed in the (mostly south) Alps, almost all other European mountains from Pyrenees to Carpathians including Balkan peninsula. It is a Mediterranean montane floral element. The plant has tiny but beautiful flowers. It is not easy to find it but it can be easily recognized by dark red base of the inner side of sepals, flattened stamens which are minutely hairy at the base (hand lens needed) and the lack of stolons, which are otherwise quite frequent in genera Potentilla and Fragaria.Ref.:(1) Personal communication with Dr. Igor Dakskobler, Natural History Institute 'Jovan Hadi', SAZU.(2) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora fr sterreich, Liechtenstein und Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 481.(3) A. Martini et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnina Zaloba Slovenije (2007), p 256. (4) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 780.(5) K. Lauber and G. Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 250.
-
Hobro, Jylland, Danmark
-
Hobro, Jylland, Danmark
-
west side of I-24 just west of Briley Parkway, Davidson County, Tennessee, US
-
Keri Drive, Pleasant View, Cheatham County, Tennessee, US
-
close up image of Potentilla norvegica NORWAY CINQUEFOIL at the James Woodworth Prairie Preserve - a single flower head with two flowers at full bloom
-
Potentilla pusilla Host, syn.: Potentilla puberula Kraan, Potentilla gaudinii Gremli, Potentilla cinerea, P. verna L., subsp. puberula (Kraan) Hegi, P. glandulifera KraanDE.: Grauflaumiges Fingerkraut, Flaum-Fingerkraut, Sternhaarige Frhlings-Fingerkraut Slo.: pritlini petoprstnikDat.: April 23. 2014 and April 27. 2014Lat.: 46.36053 Long.: 13.70211Code: Bot_792/2014_IMG5350 and Bot_793/2014_DSC0618Habitat: former stony pasture; old overgrown scree, slightly southeast inclined slope; calcareous ground; dry, nutrients poor, shallow soil layer, among low grasses and mosses; sunny place, exposed to direct rain, average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 610 m (2.000 feet), alpine phytogeographical region. Substratum: soil.Place: Lower Trenta valley, between villages Soa and Trenta, right bank of river Soa, near Trenta 2b cottage, East Julian Alps, Posoje, Slovenia EC.Comment: Potentilla pusilla is a Middle and South European plant growing in almost all parts of Alps and one of almost 30 species of this genus growing in Slovenia (and one of about 500 worldwide). It is an example of species, which is not easy to determine. Ref.:(3) frankly states that distinguishing it from other species, which also belong to Potentilla verna aggregate is not clear and even contradictory described in literature. To make the situation worse for an amateur the determination depends on very small and sparse plant's hairs. All dichotomous keys of genus Potentilla known to me split genus Potentilla already in a fairly early stage of determination process into two groups of plants - with and without stellar hairs. If one makes a wrong decision with respect to existence and type of these hairs the result of determination is a failure. All references state that Potentilla pusilla should have stellar hairs. Unfortunately, the authors don't agree where these hairs should be located. Ref.: (2) states 'on the whole plant', Ref.: (3) states 'at least at leaf margins', Ref.:(4) assumes they are 'on the upper and lower surface of the leafs', Ref.:(6) states 'on margins and lower and upper surface of leafs' and Ref.:(7) claims they can be found on the lower side of leafs only. Additional difficulty is the fact that these hairs are expected to be not only sparse but also very small and unevenly distributed. Although I looked for them, I haven't found them even with my good quality 10x magnifier and therefore never came to an acceptable determination of the plants photographed. Only after I was instructed to check thoroughly Potentilla pusilla traits again and I put the plant under a dissecting microscope I found these stellar hairs and hence recognized the plant. The hairs were really small and sparse. Interestingly, I noticed two types of them (in addition to vast majority of other types of hairs). The hairs of the first type are located on the lower side of the leaf surface. They are very sparse and maximally 100 m long, most of them much shorter, and without much larger central hair. Hairs of the second type are easier to find and are located here and there at the margins of leafs. They are surrounding the base of much larger (> 20 times), simple, up to 1(2) mm longleaf side hairs. Most of the second type stellar hairs are shorter than 50 m. I was unable to find stellar hairs on the upper side of leafs, leaf petioles and other parts of the plant. This 'hair picture' doesn't fit fully to any of species description known to me. But, since these hairs appear to be a very variable trait of this species, I still believe the determination is correct. Plants were growing in groups, sometimes forming quite large flat 'cushions' with many beautiful flowers.Ref.:(1) Personal communication with Dr. Igor Dakskobler, SAZU, Natural History Institute Jovan Hadi. (2) K. Lauber and G. Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 262.(3) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora sterreich Liechtenstein, Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 484.(4) A. Martini et all., Mala Flora Slovenije, Tehnina Zaloba Slovenije (2007) (in Slovene), p 254. (5) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 774.(6) Rothmaler 3, Exkursionsflora von Deutschland, 11. Aufl., Elsevier, Spectrum (2007), p 237. (7) H. Haeupler, T. Muer, Bildatlas der Farn- und Bltenpflazen Deutschlands, Ulmer (2000), p 219.
-
2010.06.04 Vienna X. (roadside/dam, 185 m AMSL).Habitat, here with Papaver rhoeas.German name: Hoch-FingerkrautID: Fischer & al., Exkursionsflora (2008 3rd)
-
United States
-
2010.03.26 Lower Austria, district Bruck/Leitha, Braunsberg (south flank, 240 m AMSL).Detail of flower.Common in Eastern Austria.German name: Sand-Frhlings-FingerkrautID: Fischer, Exkursionsflora (2008 3rd)
-
Duchesnea indica (Andrews) Focke, syn.: Fragaria indica AndrewsYellow-flowered Strawberry; DE: Scheinerdbeere, Indische Erdbeere, Falsche ErdbeereSlo.: indijski jagodnjakDat.: Sept. 5. 2014Lat.: 46.36043 Long.: 13.70279Code: Bot_832/2014_IMG6809Picture file names: from Duchesne-indica_raw_20 to Duchesne-indica_raw_24.Habitat: semiruderal grassland near a cottage; flat, shallow, calcareous ground, overgrown colluvial terrain; mostly in shade; under a canopy of Juglans regia; partly protected from direct rain by tree canopy; average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 600 m (1.960 feet), alpine phytogeographical region. Substratum: soil. Place: Lower Trenta valley, between villages Soa and Trenta, right bank of river Soa, 'Na Melu' place, near cottage Trenta 2b, East Julian Alps, Posoje, Slovenia EC Comment: Duchesnea indica isn't a native plant of Slovenia. It was introduced relatively recently (about 20 years ago) and escaped from gardens. It is now spreading over the country by birds, which eat its fruits. It origins from south and southeast Asia and is considered a potentially invasive plant. The first occurrence in the upper Soa river region was observed in 2007 downstream of Bovec near Pluna village. This find is some 20 km upstream the Soa river and is, to my knowledge, the first in the Trenta valley.The plant's leaves and fruits are very similar to wild strawberry and confusions are easy Contrary, when it is in bloom, it is easy to distinguish it from wild strawberry since it blooms yellow. Its appealing fruits aren't poisonous but they are, at best, tasteless if not of slightly unpleasant taste. Although looking as tasteful wild strawberries - tasting it is a big disappointment.Ref.:(1) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora fr sterreich, Liechtenstein und Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 480.(2) L. Pintar, A. Selikar, Cvetje Slovenske Deele - Florula Slovenica, Zaloba Narava d.o.o. (2015) (in Slovenian), p 119.(3) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 174.(4) A. Martini et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnina Zaloba Slovenije (2007) (in Slovene), p 256.
-
2010.06.04 Vienna XII. (roadside, poplar avenue, 195 m AMSL).Common; here with seeds of Populus nigra.Flower.German name: Kriech-FingerkrautID: Fischer & al., Exkursionsflora (2008 3rd)
-
Potentilla zimmeteri, Borbas; syn.: Potentilla heptaphylla subsp. australis (Nyman) Gams; (Potentilla australis agg.)Slo.: juni petoprstnik ?Dat.: May 06. 2011Lat.: 44.54635 Long.: 15.17355Code: Bot_512/2011_IMG4839 Habitat: Partly overgrown scree slope, south inclined, calcareous bedrock, open, dry and sunny place, exposed to direct rain, elevation 1.250 m (4.100 feet), alpine phytogeographical region. Substratum: soil among rocks and screePlace: Dabarski Kukovi north of Bake Otarije village, middle Velebit Mountains, Velebit region, Croatia Comment: Determination not completely certain. Taxonomy of Potentilla australis agg. has not been settled yet. Ref.:(1) Personal communication with dr. Botjan Surina, University of Primorska, Science and Research Centre of Koper, Slovenia.(2)
dbiodbs.units.it/carso/chiavi_pub28?usr=admin&n=1168&... (3)
ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=7715413&...
-
Potentilla tommasiniana F.Schultz, syn.: Potentilla cinerea Chaix & Vill. ssp. tommasiniana (F. Schultz) Gerstb. Potentilla acaulis subsp. tommasiniana (F. Schultz) Sojk, Potentilla arenaria subsp. tommasiniana (F. Schultz) Th. Wolf, Potentilla cinerea subsp. tommasiniana (F. Schultz) Velen.EN: Tommasini's Cinquefoil, DE: Tommasini-FingerkrautSlo.: Tomasinijev petoprstnikDate: April 08. 2006Lat.: 45.9883 Long.: 13.6347Code: Bot_106/2006_DSC0024Habitat: stony, open grassland on top of a mountain, overgrown with scattered low bushes; calcareous, skeletal ground, full sun, dry place; elevation 580 m (1.900 feet), average precipitations 1.800-2.000 mm/year, average temperature 11-12 deg C, Sub-Mediterranean phytogeographical regionSubstratum: soil.Place: Near the top of Mt. Sabotin, 609 m, north of Solkan/Nova Gorica; Goriko, Slovenia EC.Comment: Potentilla tommasiniana is another beautiful species of large genus cinquefoil Potentilla. It is named by Muzio Tommasini an amateur botanist from Trieste, Italy active in 19th century, who was thoroughly familiar with flora of surrounding territories, which are today parts of Slovenia. Potentilla tommasiniana is primarily a warmth loving East (Sub)Mediterranean species. At first glance it doesn't differ much from other yellow blooming relatives. The main characteristics are grayish-green, densely haired leaves and stalks, presence of stellate hairs (in addition to other types of hairs), ternate ground leaves (upper ones are often palmate with five leaflets) and inflorescences with several flowers. However, Potentilla tommasiniana is very variable and its taxonomy is quite unsettled. Some sources do not recognize it at all and consider it as a synonym of Potentilla cinerea (Ref.: 5). Others recognize it on subspecies level either as Potentilla cinerea ssp. tommasiniana (Ref.: 3, 8) or of Potentilla acaulis ssp. tommasiniana (Ref.: 11) or Potentilla arenaria var. tommasiniana (Flora Europaea cited in Ref.: 9). The EuroMed Plant Database (Ref.: 4), Slovenian botany key (Ref. 2) as well as Croatian key (Ref.: 7) and several other sources recognize it on species level. Aeschimann, Flora Alpina (Ref.: 8) considers Potentilla tommasiniana taxonomically questionable taxon. The species is known from warmer regions of northeast Italy (Ref.: 6, 11), southwest Slovenia (Ref.: 10) and warmer regions of Croatia, Bosnia and Hercegovina (Ref.: 9). Ref.:(1) Personal communication with Dr. Igor Dakskobler, Jovan Hadi Institute of Biology, Slovenian Academy of Sciences and Arts (2) A. Martini et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnina Zaloba Slovenije (2007), p 255. (3) W.K. Rottensteiner, Exkursionsflora fr Istrien, Verlag des Naturwissenschaftlichen Vereins Krten (2014), p 817.(4)
ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameCache=Poten... (accessed Oct.22. 2018)(5) Flora Croatica Database (FCD), Department of Botany, Faculty of science, FER-ZPR, University of Zagreb (2004);
hirc.botanic.hr/fcd (accessed Oct. 23. 2018)(6) KeytoNature / Dryades Project
dbiodbs.units.it/carso/chiavi_pub28?usr=admin&n=960&a... (accessed Oct. 22. 2018)(7) R. Domac, Flora Hrvatske (Flora of Croatia) (in Croatian), kolska Knjiga, Zagreb (1994), p 174.(8) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 2., Appendix A4, Haupt (2004), p 1187.(9) S. Redzic, Chorologic and phenological characteristics of the populations of the species Potentilla tommasiniana F.W. Schultz in Bosnia and Herzegovina, Stvdia Botanica 12: 219-235, 1994. (10) N. Jogan (ed.), Gradivo za Atlas flore Slovenije (Materials for the Atlas of Flora of Slovenia), CKSF (2001), p 299.(11) L. Poldini, Nuovo Atlante corologico delle piante vascolari nel Friuli Venezia Giulia, University of Trieste (2002), p 383.
-
Potentilla aurea L.Golden Cinquefoil, DE: Gold-FingerkrautSlo.: zlati petoprstnik, zlati prstnikDat.: June 6. 2015Lat.: 46.43721 Long.: 13.63978Code: Bot_884/2015_IMG8131Habitat: Stony alpine grassland, road side, southwest oriented mountain slope; open, sunny and dry place; calcareous, skeletal ground, exposed to direct rain, elevation 1.860 m (6.100 feet), average precipitations ~ 3.000 mm/year, average temperature 0 - 2 deg C, alpine phytogeographical region.Substratum: soil.Place: Mt. Mangart flats, at the beginning of the access road to the mountain cottage 'Koa na Mangartu', East Julian Alps, Posoje, Slovenia EC. Comment: Potentilla aurea is a common and eye-catching plant of Julian Alps. Its numerous, deep yellow flowers are noticed from far. Yet, it has a close relative, namely Potentilla crantzii, which is very similar to it in habitus and flower size, shape and color and it is even more frequent. Both species grow in the whole Alpine belt and other European mountains. If one wants to distinguish between both, he has to look at their leaves carefully. They are generally similar too, but Potentilla aurea has long, half appressed, silky hairs along their edge. These hairs are often so dense that the leaves seem to have a silvery band all around, but sometimes they are not so conspicuous and a hand lens is of great help to see them. According to literature, there is another distinguishing parameter - size of the top-most, middle tooth of the serrate leaves. With Potentilla aurea it should be smaller than other teeth, while with Potentilla crantzii it should be of about the same size. But, to my experience, this trait is variable and one has to observe several leaves before making a decision. Also the yellow color of the flowers of the Potentilla aurea is deeper and more golden than with Potentilla crantzii. However, also here the flower color is variable and one needs some experience with both species to be able to differentiate them based on flower color only. Ref.:(1) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 772.(2) T. Wraber, 2 x Sto alpskih rastlin na Slovenskem, Preernova druba (2006) (in Slovene), p 81.(3) A. Martini et all., Mala Flora Slovenije, Tehnina Zaloba Slovenije (2007) (in Slovene), p 255. (4) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora sterreich Liechtenstein, Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 483.
-
Potentilla micrantha Ramond ex DC.Pink Barren Strawberry, DE: Kleibltiges Fingerkraut, Erdbeer-FingerkrautSlo.: drobnocvetni petoprstnikDat.: March 18.1 2016Lat.: 46.19097 Long.: 13.75258Code: Bot_937/2016_DSC0595Habitat: small woodland openings in predominantly broad leaved wood, Fagus sylvatica and Ostrya carpinifolia dominant with some scattered Picea abies; calcareous (Bot_937/2016_DSC0595) and marly (Bot_937/2016_DSC0603) ground; steep mountain slope, southwest aspect; warm and moderately dry place; elevation 610 m (2.000 feet) (Bot_937/2016_DSC0595) and 760 m (2.500 feet) (Bot_937/2016_DSC0603); average precipitations ~ 2.500 mm/year, average temperature 8-10 deg C, alpine phytogeographical region. Substratum: soil.Place: Tolmin region, next to the trail from village abe to Mt. Tolminski Triglav, 1.142 m (3.750 feet), above conspicuous calcareous cliffs, East Julian Alps, Posoje, Slovenia EC.Comment: Potentilla micrantha is one of about ten white blooming species of very large genus Potentilla and similarly looking Fragaria. Many more than that bloom yellow. It is a common plant neither in Slovenia nor in neighboring Austria and Italy nor in Switzerland. On the other hand it is very widely distributed in the (mostly south) Alps, almost all other European mountains from Pyrenees to Carpathians including Balkan peninsula. It is a Mediterranean montane floral element. The plant has tiny but beautiful flowers. It is not easy to find it but it can be easily recognized by dark red base of the inner side of sepals, flattened stamens which are minutely hairy at the base (hand lens needed) and the lack of stolons, which are otherwise quite frequent in genera Potentilla and Fragaria.Ref.:(1) Personal communication with Dr. Igor Dakskobler, Natural History Institute 'Jovan Hadi', SAZU.(2) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora fr sterreich, Liechtenstein und Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 481.(3) A. Martini et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnina Zaloba Slovenije (2007), p 256. (4) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 780.(5) K. Lauber and G. Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 250.
-