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Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics







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CCDB → Angiosperms → Urticaceae → Urtica → Urtica dioica L.

117 chromosome counts in Urtica dioica L.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Urtica dioica L. Urtica dioica L.   52 CHROBASE CORSI G., GARBARI F., MAFFEI F. - 1999 (1999). Il genere Urtica L. (Urticaceae) in Italia. Revisione biosistematica.. Webbia , 53(2): 193-239.
  Urtica dioica L. Urtica dioica L.   48 Slovakia Database Májovský J. et al., 1970a: Index of chromosome numbers of Slovakian flora (Part 1). - Acta Fac. Rerum Nat. Univ. Comen., Bot. 16: 1-26.
  Urtica dioica L. Urtica dioica L.   48 Slovakia Database Májovský J. et al., 1974b: Index of chromosome numbers of Slovakian flora Part 4. - Acta Fac. Rerum Nat. Univ. Comen., Bot. 23: 1-23.
  Urtica dioica L. Urtica dioica L.   48 Slovakia Database Májovský J. et al., 1974b: Index of chromosome numbers of Slovakian flora Part 4. - Acta Fac. Rerum Nat. Univ. Comen., Bot. 23: 1-23.
  Urtica dioica L. Urtica dioica L.   26 Slovakia Database Kolník M. & Goliašová K., 2006: Reports (15-16), pp. 116. - In: Mráz P. (ed.), Chromosome number and DNA ploidy level reports from Central Europe – 2, Biologia (Bratislava) 61 /1.
  Urtica dioica L. Urtica dioica L.   52 IAPT/IOPB IAPT/IOPB Chromosome Data 9
!   Urtica dioica L. Urtica dioica L.   48 British Isles cytology Montgomery, L., Khalaf, M.K., Bailey, J.P., Gornall, R.J. Watsonia 21: 365-368 (1997)
!   Urtica dioica L. Urtica dioica L.   52 British Isles cytology Fothergill, P.G. Proc. Univ. Durham Philos. Soc. 9: 205-216 (1936)
!   Urtica dioica L. Urtica dioica L.   52 British Isles cytology Wentworth, J.E., Bailey, J.P., Gornall, R.J. Watsonia 18: 415-418 (1991)
!   Urtica dioica L. Urtica dioica L.   c52 British Isles cytology McAllister, H.A. Watsonia 22: 275-278 (1999)
  Urtica dioica L. Urtica dioica L.   52 Flora Iberica Cytotaxomy of spanish plants. III.-Dicotyledons Lve, A. & E. Kjellqvist.Lagascalia4(1): 3-32(1974).
!   Urtica dioica L. Urtica dioica L.   48, 52 flora of NW Europe http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=1744
!   Urtica dioica L. Urtica dioica L.   26 flora of NW Europe http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=1745
!   Urtica dioica L. Urtica dioica L.   48 Flora Europaea LOve & LBve, 1956
!   Urtica dioica L. Urtica dioica L.   52 Flora Europaea Fothergill, 1936
  Urtica dioica L. Urtica dioica L.   48 Poland Database Skali?ska M., Jankun A., Wcis?o H. et al. 1971. Studies in chromosome numbers of Polish Angiosperms. Eighth contribution. Acta Biol. Cracov. Ser. Bot. 14, 55-102.
  Urtica dioica L. Urtica dioica L.   52 Poland Database Skali?ska M., Jankun A., Wcis?o H. et al. 1971. Studies in chromosome numbers of Polish Angiosperms. Eighth contribution. Acta Biol. Cracov. Ser. Bot. 14, 55-102.
  Urtica dioica L. Urtica dioica L.   48 Poland Database Skali?ska M., Ma?ecka J., Izmai?ow R. et al. 1974. Further studies in chromosome numbers of Polish Angiosperms. Tenth contribution. Acta Biol. Cracov. Ser. Bot. 17, 133-163.
  Urtica dioica L. Urtica dioica L.   52 Poland Database Skali?ska M., Ma?ecka J., Izmai?ow R. et al. 1974. Further studies in chromosome numbers of Polish Angiosperms. Tenth contribution. Acta Biol. Cracov. Ser. Bot. 17, 133-163.
  Urtica dioica L. Urtica dioica L.   48 Kamari Mediterranean  
  Urtica dioica L. Urtica dioica L.   48 IPCN online Parfenov, V. I. & S. A. Dmitrieva. 1985. Kariologicheskaja differenciacija u vidov flory Belorussii i ee rol, v formoobrazovanii. Dokl. Akad. Nauk Byelorussk. SSR. (Minsk). 29(6): 544–557.
  Urtica dioica L. Urtica dioica L.   48 IPCN online Laane, M. M. & T. Lie. 1985. Fremstilling av kromosompreparater med enkle metoder. Blyttia 1985: 7–15.
  Urtica dioica L. Urtica dioica L.   52 IPCN online Pashuk, K. T. 1987. Chromosome numbers in species of subalpine belt of Chernogora (Ukrainian Carpatians). Bot. Zhurn. 72: 1069–1074.
  Urtica dioica L. Urtica dioica L.   52, 26 IPCN online Geltman, D. V. 1984. Cytotaxonomical studies of the species of the genus Urtica (Urticaceae) in the Flora of the USSR. Bot. Zhurn. SSSR 69(11): 1525–1530.
  Urtica dioica L. Urtica dioica L.   26,52 IPCN online Geltman, D. V. 1982. On the chromosome numbers of Urtica dioica s.l. (Urticaceae) (on the basis of the material from the middle zone of the European part of the USSR). Bot. Zhurn. 67 (6): 788–792. (In Russian).
  Urtica dioica L. Urtica dioica L.   52 IPCN online Wentworth, J. E., J. P. Bailey & R. J. Gornall. 1991. Contributions to a cytological catalogue of the British and Irish flora, 1. Watsonia 18: 415–417.
  Urtica dioica L. Urtica dioica L.   48 IPCN online Montgomery, L., M. Khalaf, J. P. Bailey & K. J. Gornal. 1997. Contributions to a cytological catalogue of the British and Irish flora, 5. Watsonia 21: 365–368.
  Urtica dioica L. Urtica dioica L.   52 IPCN online Dobea, C. & B. Hahn. 1997. IOPB chromosome data 11. Newslett. Int. Organ. Pl. Biosyst. (Oslo) 26/27: 15–18.
  Urtica dioica L. Urtica dioica L.   52 IPCN online Mĕsíček, J. 1992. In J. M|3esí|3ccek & V. Jav@0urková-Jarolímová, List of Chromosome Numbers of the Czech Vascular Plants. Academia, Praha.
  Urtica dioica L. Urtica dioica L.   52 IPCN online Corsi, G., F. Garbari & F. Maffei. 1999. Il genere Urtica L. (Urticaceae) in Italia. Revisione biosistematica. Webbia 53(2): 193–239.
  Urtica dioica L. Urtica dioica L.   52 IPCN online McAllister, H. A. 1999. Urtica galeopsifolia Wierzb. ex Opiz (Urticaceae) confirmed for Britain by its chromosome number. Watsonia 22: 275–278.
  Urtica dioica L. Urtica dioica L. 13   IPCN online Khatoon, S. & S. I. Ali. 1993. Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi.
  Urtica dioica L. Urtica dioica L.   26 IPCN online Kiehn, M., E. Vitek & C. Dobea. 2000. In C. Dobea & E. Vitek, Documented Chromosome Number Checklist of Austrian Vascular Plants. Verlag des Naturhistorischen Museums Wien, Vienna.
  Urtica dioica L. Urtica dioica L.   26 IPCN online Nurmi, J. 1980. PohjannokLonen (Urtica dioica subsp. sondenii) Etala-Suomessa. Mem. Soc. Fauna Fl. Fennica 56: 127–132.
  Urtica dioica L. Urtica dioica L.   48 IPCN online Nurmi, J. 1980. PohjannokLonen (Urtica dioica subsp. sondenii) Etala-Suomessa. Mem. Soc. Fauna Fl. Fennica 56: 127–132.
  Urtica dioica L. Urtica dioica L.   26,52 IPCN online Belaeva, V. A. & V. Siplivinsky. 1981. In Chromosome number reports LXXIII. Taxon 30: 857–860.
  Urtica dioica L. Urtica dioica L.   48 IPCN online Gregor, T. & R. Hand. 2009. Chromosomenzahlen von Farn- und Samenpflanzen aus Deutschland 4. Kochia 4: 37–46.
  Urtica dioica subsp. dioica Urtica dioica L.   52 IPCN online Arohonka, T. 1982. Chromosome counts of vascular plants of the island Seili in Nauvo, southwestern Finland. Turun Yliopiston Julkaisuja, Sar. A 2, Biol.-Geogr. 3: 1–12.
  Urtica dioica subsp. dioica Urtica dioica L. 26 52 IPCN online Woodland, D. W., I. J. Bassett, C. Crompton & S. Forget. 1982. Biosystematics of the perennial North American taxa of Urtica. I. Chromosome number, hybridization and palynology. Syst. Bot. 7(3): 269–281.
  Urtica dioica subsp. dioica Urtica dioica L.   48, 52 IPCN online Lippert. 2006. Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten. Ber. Bayer. Bot. Ges. 76: 85–110.
  Urtica galeopsifolia Wierzb. ex Opiz Urtica dioica L.   26, 52 IPCN online Geltman, D. V. 1984. Cytotaxonomical studies of the species of the genus Urtica (Urticaceae) in the Flora of the USSR. Bot. Zhurn. SSSR 69(11): 1525–1530.
  Urtica galeopsifolia Wierzb. ex Opiz Urtica dioica L.   26,52 IPCN online Geltman, D. V. 1982. On the chromosome numbers of Urtica dioica s.l. (Urticaceae) (on the basis of the material from the middle zone of the European part of the USSR). Bot. Zhurn. 67 (6): 788–792. (In Russian).
  Urtica galeopsifolia Wierzb. ex Opiz Urtica dioica L.   26 IPCN online McAllister, H. A. 1999. Urtica galeopsifolia Wierzb. ex Opiz (Urticaceae) confirmed for Britain by its chromosome number. Watsonia 22: 275–278.
  Urtica dioica var. dioica Urtica dioica L.   26, 52 IPCN online Lövkvist, B. & U. M. Hultgård. 1999. Chromosome numbers in south Swedish vascular plants. Opera Bot. 137: 1–42.
  Urtica dioica L. Urtica dioica L.   52 IPCN72 BASSETT, I.J.' & c.w. CROMPTON. 1972. In IOPB chromosome number reports XXXVIII. Taxon 21: 679-684.
  Urtica dioica L. Urtica dioica L.   52 IPCN67-71 TAYLOR, R.L., & G.A. MULLIGAN. 1968. Flora of the Queen Charlotte Islands. Part 2. Cytological aspects of the Vascular Plants. Queen's Printer, Ottawa. pp. 148.
  Urtica dioica L. Urtica dioica L. 24   IPCN67-71 LAANE, M.M. 1969. Meiosis and structural hybridity in some Norwegian plant species. Blyttia 27: 141-173.
  Urtica dioica L. Urtica dioica L.   48 IPCN67-71 MAJOVSKY, J., ET. AL. 1970. Index of chromosome numbers of Slovakian flora (Part 1). Acta Fae. Rerum Nat. Univ. Comenianae Bot. 16.: 1-26.
  Urtica dioica L. Urtica dioica L.   52 IPCN67-71 GADELLA, T.W.J., & E. KLIPHUIS. 1971. Chromosome numbers of flowering plants in the Netherlands v. Proc. Kon. Ned. Acad. Wetensch. ser C 74:
  Urtica dioica L. Urtica dioica L.   48, 52 IPCN67-71 SKALINSKA, M., A. JANKUN, H. WCISLO ET AL. 1971. Studies in chromosome numbers of Polish Angiosperms. Eighth contribution. Acta Biol. Cracov., Ser. Bot. 14: 55-102.
  Urtica dioica L. Urtica dioica L.   52 IPCN75-78 Love & Love 1975b
!   Urtica dioica subsp. dioica Urtica dioica L.   48 Love, 1948 L. & L. I942 a, Meurman I925 a, b.
!   Urtica dioica subsp. dioica Urtica dioica L.   52 Love, 1948 Fothergill I 936.
  Urtica dioica L. Urtica dioica L.   52 IPCN73-74 LOEVE, A., & E. KJELLQVIST. 1974. Cytotaxonomy of Spanish plants. III Dicotyledons: Salicaceae - Rosaceae. Lagascalia 4: 3-32.
!   Urtica dioica subsp. dioica Urtica dioica L.   52 IPCN73-74 BASSETT, I.J., C.W. CROMPTON, & D.W. WOODLAND. 1974. The family Urticaceae in Canada. Canad. J. Bot. 52: 503-516.
!   Urtica dioica subsp. dioica Urtica dioica L.   48 IPCN73-74 MAJOVSKY, J., ET AL. 1974. Index of chromosome numbers of Slovakian Flora. (Part 4). Acta Fac. Rerum Nat. Univ. Comenianae Bot. 23: 1-23.
!   Urtica dioica L. Urtica dioica L.   32 Kumar, 1987 Strasburger, E. 1910a
!   Urtica dioica L. Urtica dioica L.   48 Kumar, 1987 Meurman, O. 1924, 1925 ; Heitz, E. 1926; Tischler, G. 1934; Rohweder, H. 1937 ; Love, A. & Love, D. 1942a, 1956b ; Sorsa, V. 1962; Murin & Vachova (Fedorov) ; Laane, M.M. 1969b ; Majovsky, J. et al. 1970a
!   Urtica dioica L. Urtica dioica L.   48, 52 Kumar, 1987 Gadella, T.W.J. & Kliphuis, E. 1963 ; Skalinska, M. et al. 1971
!   Urtica dioica L. Urtica dioica L.   52 Kumar, 1987 Fothergill, P .G. 1936; Taylor, R.L. & Mulligan, G.A. 1968 ; Gadella, T.W.J. & Kliphuis, E. 1971a ; Bassett, I.J. & Crompton, C.W. 1972 ; Ltsve, A. & LI:Sve, D. 1975b
!   Urtica dioica subsp. dioica Urtica dioica L.   52 Kumar, 1987 Bassett, I.J. et al. 1974
  Urtica dioica subsp. dioica Urtica dioica L.   52 eFlora  
  Urtica dioica L. Urtica dioica L.   32 Fedorov, 1974 Strasburger 1910a
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 Meurma11 1924, 1925
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 Heitz 1926
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 Tischler 1934
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 Rohweder 1937
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 LOve A., LOve D. 1942a 1956b
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 Sorsa V. 1962
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 Murin, Vachova
  Urtica dioica L. Urtica dioica L.   48 Fedorov, 1974 I. Slo:v. fl. I. 1967)
  Urtica dioica L. Urtica dioica L.   48, 52 Fedorov, 1974 Gadella, Kliphuis 1963
  Urtica dioica L. Urtica dioica L.   52 Fedorov, 1974 Fothergill 1936
!   Urtica dioica L. Urtica dioica L.   52 Darlington, 1955 Fothergill 1936
!   Urtica dioica L. Urtica dioica L.   48 Darlington, 1955 Meurman 1925
!   Urtica dioica L. Urtica dioica L.   48 Darlington, 1955  
!   Urtica dioica L. Urtica dioica L.   52 C-values database Mowforth MA.1986. Variation in nuclear DNA amounts in flowering plants: an ecological analysis. PhD. Thesis, University of Sheffield. Specific reference for Poa annua in Mowforth MA and Grime JP. 1989. Intra-Population Variation in Nuclear DNA Amount
!   Urtica dioica L. Urtica dioica L.   2n = 52 Austria_checklist Ch. Dobes & B. Hahn in Dobe?, Ch. & Hahn, B. 1997. Reports by C. Dobes & B. Hahn. In Stace, C. A. IOPB chromosome data 11. Newslett.Int.Organ.Pl.Biosyst. 26/27, pp. 15-18.
!   Urtica dioica L. Urtica dioica L.   2n = 36 Austria_checklist Ch. Dobes & B. Hahn in Dobe?, Ch. & Hahn, B. 1997. Reports by C. Dobes & B. Hahn. In Stace, C. A. IOPB chromosome data 11. Newslett.Int.Organ.Pl.Biosyst. 26/27, pp. 15-18.
!   Urtica dioica L. Urtica dioica L.   2n = 26 Austria_checklist M. Kiehn, E. Vitek & Ch. Dobes unpubl.
  Urtica dioica L. Urtica dioica L.   48 Cave1956 Love & Love b
  Urtica dioica L. Urtica dioica L. c.24   Cave1963 Sorsa 1962
  Urtica dioica L. Urtica dioica L.   48, 52 Cave1963 Gadella & Klip. 1963
  Urtica dioica L. Urtica dioica L. c.24   CromoCat 2015 Sorsa, V. (1962). Chromosomenzahlen Finnischer Kormophyten, I. Ann. Acad. Sci. Fenn., Sér. A 58: 1-14.
  Urtica dioica L. Urtica dioica L. 24   CromoCat 2015 Cauderon, Y. (1958). Étude cytogénétique des Agropyrum français et de leurs hybrides avec les blés. Ann. Inst. Natl. Rech. Agron., Ser. B. 8: 389-543.
  Urtica dioica L. Urtica dioica L. 13   CromoCat 2015 Khatoon, S. & Ali, S. I. (1993). Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi
  Urtica dioica L. Urtica dioica L.   26 CromoCat 2015 Geltman, D. V. (1982). On the chromosome numbers of Urtica dioica s. l. (Urticaceae). (On the basis of the material from the middle zone of the European part of the U.S.S.R.). Bot. Žurn. 67: 788-792.
  Urtica dioica L. Urtica dioica L.   26 CromoCat 2015 Nurmi, J. (1980). Urtica dioica subsp. sondenii in S. Finland. Mem. Soc. Fauna Fl. Fenn. 56: 127-132.
  Urtica dioica L. Urtica dioica L.   36 CromoCat 2015 Dobeš, C. & Hahn, B. (1997). IOPB Chromosome Data 11 (ed. C.A. Stace). Int. Organ. Pl. Biosyst. Newslett. 26-27: 15-18.
  Urtica dioica L. Urtica dioica L.   36 CromoCat 2015 Stace, C. A. (1997). IOPB chromosome data 11. Newslett. Int. Organ. Pl. Biosyst. 26/27: 13-26
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Belaeva, V. A. & Siplivinsky, V. N. (1981). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXXIII]. Taxon 30(4): 857-860.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Cheshmedziev, I. V. (1994). Reports (313-366). Fl. Medit. 4: 269-279.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Gadella, Th. W. J. & Kliphuis, E. (1963). Chromosome numbers of flowering plants in the Netherlands. Acta Bot. Neerl. 12(2): 195-230.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Heitz, E. (1926). Der Nachweis der Chromosomen vergleichende Studien über ihre Zahl, Grosse und Form im Pflanzenreich. I. Zeitschr. Bot. Zeitschr. Bot. 18(11-12): 625-681.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Löve, A. & Löve, D. (1942b). Cytotaxonomic studies on boreal plants. I. Some observations on Swedish and Icelandic plants. Kungl. Fysiogr. Sällsk. Lund Förhandl. 12: 1-19.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Löve, A. & Löve, D. (1956b). Cytotaxonomical conspectus of the Icelandic flora. Acta Horti Gothob. 20(4): 65-291.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Meurman, O. (1925). Uber Chromosomenzahlen und Heterochromosomen bei diözischen Phanerogamen. (Vorläufige Mitteilung). Soc. Sci. Fenn. Comm. Biol 3: 1-105.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Skalinska, M., A. Jankun, H. Wcislo. (1971). Studies in chromosome numbers of Polish angiosperms. Eighth contribution. Acta Biol. Cracov., Ser. Bot. 14: 55-102.
  Urtica dioica L. Urtica dioica L.   48 CromoCat 2015 Uhríková, A. & A. Murín. (1970). Reports (In Májovsky, J. & al. (ed.), Index of chromosome numbers of slovakian flora. Part 2). Acta Fac. Rerum Nat. Univ. Comenianae, Bot. 18: 45-60.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Bassett, I. J. & C. W. Crompton. (1972). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports XXXVIII]. Taxon 21(5/6): 679-680.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Chepinoga, V. V., Gnutikov, A. A. & Rosbakh, S. A. (2010). IAPT/IOPB Chromosome Data 9 Taxon 59 (4): 1298-1299
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Dobeš, C. & Hahn, B. (1997). IOPB Chromosome Data 11 (ed. C.A. Stace). Int. Organ. Pl. Biosyst. Newslett. 26-27: 15-18.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Gadella, Th. W. J. & Kliphuis, E. (1963). Chromosome numbers of flowering plants in the Netherlands. Acta Bot. Neerl. 12(2): 195-230.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Gadella, Th. W. J. & Kliphuis, E. (1971b). Chromosome numbers of flowering plants in the Netherlands V. Proc. Kon. Ned. Akad. Wetensch. Ser. C 74: 335-343.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Geltman, D. V. (1982). On the chromosome numbers of Urtica dioica s. l. (Urticaceae). (On the basis of the material from the middle zone of the European part of the U.S.S.R.). Bot. Žurn. 67: 788-792.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Löve, A. & Kjellqvist, E. (1974a). Cytotaxonomy of Spanish plants III. Dycotiledons: Salicaceae-Rosaceae. Lagascalia 4(1): 3-32.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Löve, A. & Löve, D. (1975b). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports XLIX]. Taxon 24(4): 504-507.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 M?sí?ek J. et Jarolímová-Jav?rková V. (1992). List of chromosome numbers of the Czech vascular plants. Academia, Praha. p. 1-144.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Pashuk, K. T. (1987). Chromosome number in species of subalpine belt of Chernogora (Ukrainian Carpathians). Bot. Žurn. 72(8): 1069-1074.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Skalinska, M., A. Jankun, H. Wcislo. (1971). Studies in chromosome numbers of Polish angiosperms. Eighth contribution. Acta Biol. Cracov., Ser. Bot. 14: 55-102.
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Stace, C. A. (1997). IOPB chromosome data 11. Newslett. Int. Organ. Pl. Biosyst. 26/27: 13-26
  Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Taylor, R. L. & G. A. Mulligan. (1968). Flora of the Queen Charlotte Island. Part 2. Cytologiacl aspects of the Vascular Plants. Queen's Printer Ottawa
!   Urtica dioica L. Urtica dioica L.   52 CromoCat 2015 Arohonka, T. (1982). Kromosomilukumäärityksiä Nauvon Seilin saaren putkilokasveista. (Chromosome counts of vascular plants of the island Seiliin Nauvo, SW Finland) Turun Yliopiston Biologian Laitoksen Julkaisuja 3: 1-12.
!   Urtica dioica L. Urtica dioica L.   26 CromoCat 2015 Bassett, I. J. & C. W. Crompton. (1972). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports XXXVIII]. Taxon 21(5/6): 679-680.
!   Urtica dioica Urtica dioica L.   48 CromoCat 2015 Lippert, W. (2006). Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten Ber. Bayer. Bot. Ges. 76: 85–110
!   Urtica dioica Urtica dioica L.   52 CromoCat 2015 Lippert, W. (2006). Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten Ber. Bayer. Bot. Ges. 76: 85–110
  Urtica dioica L. Urtica dioica L. 13   IAPT/IOPB IAPT/IOPB Chromosome Data 35