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.