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CCDB → Angiosperms → Urticaceae → Urtica → Urtica dioica

133 chromosome counts in Urtica dioica:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		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.		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 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 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 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 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 L.	Urtica dioica L.	13		IAPT/IOPB	IAPT/IOPB Chromosome Data 35
		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 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 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 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 subsp. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander	13,26	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. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander	13	26	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. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander		26	eFlora
		Urtica dioica subsp. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander	26		CromoCat 2015	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. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander	13		CromoCat 2015	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. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander		26	CromoCat 2015	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. gracilis (Aiton) Selander	Urtica dioica subsp. gracilis (Aiton) Selander		52	CromoCat 2015	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. holosericea (Nutt.) Thorne	Urtica dioica subsp. holosericea (Nutt.) Thorne	13	26	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. holosericea (Nutt.) Thorne	Urtica dioica subsp. holosericea (Nutt.) Thorne		26	eFlora
!		Urtica dioica subsp. sondenii (Simmons) Hyl.	Urtica sondenii (Simmons) Avrorin ex Geltman		26	IPCN72	BASSETT, I.J.' & c.w. CROMPTON. 1972. In IOPB chromosome number reports XXXVIII. Taxon 21: 679-684.
		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 var. mollis (Steud.) Wedd.	Urtica mollis Steud.		26	IPCN online	Fernández, A. M. F. d., M. E. L. d. Canelada, M. S. C. d. Garcá & A. Würschmidt. 1990. Cromosomas de Urticáceas Argentinas. Lilloa 37: 97–98.
!		Urtica dioica var. subinermis R. Uechtr.	Urtica subinermis (R. Uechtr.) Hand & Buttler		24/26	IPCN online	Lippert. 2006. Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten. Ber. Bayer. Bot. Ges. 76: 85–110.
!		Urtica dioica var. subinermis R. Uechtr.	Urtica subinermis (R. Uechtr.) Hand & Buttler		48	IPCN75-78	Urhikova 1974a
		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 gracilis Aiton	Urtica dioica subsp. gracilis (Aiton) Selander		26	IPCN online	Löve, A. & D. Löve. 1982. In: IOPB chromosome number reports LXXIV. Taxon 31: 120–126.
!		Urtica gracilis Aiton	Urtica dioica subsp. gracilis (Aiton) Selander		26	Fedorov, 1974	Fc;,thergill 1936
!		Urtica gracilis Aiton	Urtica dioica subsp. gracilis (Aiton) Selander		48	Fedorov, 1974	Love A., Love D. 1961b