{# load django_bootstrap5#%} CCDB server
Prof. Itay Mayrose Lab - Plant Evolution, bioinformatics, & comparative genomics


   CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.


CCDB → Angiosperms → Poaceae → Poa → Poa annua L.

177 chromosome counts in Poa annua L.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Poa annua L. Poa annua L.   14 Slovakia Database Kochjarová J., 1991: Karyological study of the Slovak flora XXIII. - Acta Fac. Rerum Nat. Univ. Comen., Bot. 38 [1990]: 89-99.
  Poa annua L. Poa annua L.   28 Slovakia Database Májovský J. et al., 1978: Index of chromosome numbers of Slovakian flora (Part 6). - Acta Fac. Rerum Nat. Univ. Comen., Bot. 26: 1-42.
  Poa annua L. Poa annua L.   28 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.
!   Ochlopoa annua (L.) H. Scholz Poa annua L.   28 IAPT/IOPB IAPT/IOPB Chromosome Data 13
  Poa annua L. Poa annua L. 14   IAPT/IOPB IAPT/IOPB Chromosome Data 12
!   Ochlopoa annua (L.) H. Scholz Poa annua L.   28 IAPT/IOPB IAPT/IOPB Chromosome Data 10
!   Ochlopoa annua (L.) H. Scholz Poa annua L.   28 IAPT/IOPB IAPT/IOPB Chromosome Data 13
  Poa annua L. Poa annua L.   28 IAPT/IOPB IAPT/IOPB Chromosome Data 6
!   Poa annua L. Poa annua L.   28 British Isles cytology Tutin, T.G. Watsonia 4: 1-10 (1957)
!   Poa annua L. Poa annua L.   28 British Isles cytology Warwick, S.I., Briggs, D. New Phytol. 81: 711-723 (1978)
!   Poa annua L. Poa annua L.   28 British Isles cytology Jones, K. (1969)
  Poa annua L. Poa annua L. 14   Flora Iberica Contribucin al conocimiento cariolgico de la subfam. Pooideae (Poaceae) en el SW de Espaa. Devesa, J. A. & T. Luque.Bol. Soc. Brot. ser. 261: 281-304(1988).
  Poa annua L. Poa annua L. 14   Flora Iberica Contribucin al conocimiento cariolgico de las Poaceae en Extremadura (Espaa). I. Devesa, J. A. & al.Bol. Soc. Brot. ser. 263: 29-66(1990).
  Poa annua L. Poa annua L.   28 Flora Iberica Contribuiao para o conhecimento citotaxonmico das spermatophyta de Portugal. I. Gramineae, supl. 1 Queirs, M.Bol. Soc. Brot. ser. 247: 77-103(1973).
  Poa annua L. Poa annua L.   28 Flora Iberica Contribuiao para o conhecimento citotaxonmico das spermatophyta de Portugal. I. Gramineae, supl. 2 Queirs, M.Bol. Soc. Brot. ser. 248: 81-98(1974).
  Poa annua L. Poa annua L.   28 Flora Iberica Cytotaxonomy of spanish plants. II. Monocotyledons. Lve, A. & E. Kjellqvist.Lagascalia3(2): 147-182(1973).
  Poa annua L. Poa annua L.   28 Flora Iberica Estudio monogrfico de los gneros Poa y Bellardiochloa en la pennsula Iberica e islas Baleares. Barcelona. Hernndez Cardona, A. M.*(1979).
!   Poa annua L. Poa annua L.   28 flora of NW Europe http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=4482
!   Poa annua L. Poa annua L.   28 Flora Europaea Tutin, 1957
  Poa annua L. Poa annua L.   28 Poland Database Pogan E., Wcis?o H., Izmai?ow R., Przywara L. et al. 1982 b. Further studies in chromosome numbers of Polish Angiosperms. Part XVI. Acta Biol. Cracov. Ser. Bot. 24, 159-189.
  Poa annua L. Poa annua L.   28 IPCN online Pohl, R. W. & G. Davidse. 1971. Chromosome numbers of Costa Rican grasses. Brittonia 23(3): 293–324.
  Poa annua L. Poa annua L.   28 IPCN online Pogan, E., R. CZAPIK, A. Jankun & E. Kuta. 1982. Further studies in chromosome numbers of Polish angiosperms. Part XV. Acta Biol. Cracov., Ser. Bot. 24: 113–126.
  Poa annua L. Poa annua L. 14   IPCN online Devesa, J. A. & T. Luque. 1988. Contribución al conocimiento cariológico de la subfam. Pooideae (Poaceae) en el SW de España. Bol. Soc. Brot., sér. 2 61: 281–304.
  Poa annua L. Poa annua L.   28 IPCN online Koba, H. 1988. A contribution to the taxonomy of Poa nipponica and related species (Poaceae). J. Jap. Bot. 63: 334–343.
  Poa annua L. Poa annua L.   28 IPCN online Stoeva, M. P. 1986. A karyological study of several species from the genus Poa L. (blue grass) in Bulgaria. Fitologija 31: 21–33. (In Bulgarian).
  Poa annua L. Poa annua L. 14   IPCN online Mehra, P. N. 1982. Cytology of East Indian grasses. ý.
  Poa annua L. Poa annua L. 14+1B   IPCN online Bir, S. S. & M. Sahni. 1987. Chromosomal and morphological variations in grasses of Punjab. J. Cytol. Genet. 22: 12–22.
  Poa annua L. Poa annua L. 14   IPCN online Bir, S. S. & C. Singh. 1983. SOCGI plant chromosome number reports -- I. J. Cytol. Genet. 18: 60–61.
  Poa annua L. Poa annua L. 14   IPCN online Bir, S. S. & M. Sahni. 1986. SOCGI plant chromosome number reports -- IV. J. Cytol. Genet. 21: 152–154.
  Poa annua L. Poa annua L. 14   IPCN online Koul, K. K. & R. N. Gohil. 1987. SOCGI plant chromosome number reports -- IV [i.e., V]. J. Cytol. Genet. 22: 161–162.
  Poa annua L. Poa annua L.   28 IPCN online Pashuk, K. T. 1987. Chromosome numbers in species of subalpine belt of Chernogora (Ukrainian Carpatians). Bot. Zhurn. 72: 1069–1074.
  Poa annua L. Poa annua L.   28 IPCN online Guzik, M. B. 1984. Khromosomnye chisla nekotorykh dikorastushchikh zlakov Predural'ja. Ekologija Opylenija Rastenij. Mezhvuzovskij Sbornik Nauchnykh Trudov. Perm. 82–86.
  Poa annua L. Poa annua L. 14   IPCN online Mulligan, G. A. 1984. Chromosome numbers of some plants native and naturalized in Canada. Naturaliste Canad. 111: 447–449.
  Poa annua L. Poa annua L. 14   IPCN online Spies, J. J. & S. Voges. 1988. Chromosome studies on African plants. 7. Bothalia 18: 114–119.
  Poa annua L. Poa annua L.   28 IPCN online Stefanik, V. I., N. K. Yakimchuk & V. I. Vainagij. 1989. Karyologicheskaya kharakteristika nekotorykh vidov semejstva Poaceae Ukrainskikh Karpat. Pp. 37--39 in Tesizy II Symp. Plant Karyology.
  Poa annua L. Poa annua L.   28 IPCN online Duckert-Henriod, M. M. & C. Favarger. 1987. Contribution à la cytotaxonomie et à la cytogéographie des Poa (Poaceae = Gramineae) de la Suisse. Denkschr. Schweiz. Naturf. Ges. 100: 1–130.
  Poa annua L. Poa annua L. 14 28 IPCN online Duckert-Henriod, M. M. & C. Favarger. 1987. Contribution à la cytotaxonomie et à la cytogéographie des Poa (Poaceae = Gramineae) de la Suisse. Denkschr. Schweiz. Naturf. Ges. 100: 1–130.
  Poa annua L. Poa annua L. 14   IPCN online Devesa, J. A., T. Luque & P. Gómez. 1990. Números cromosomáticos de plantas occidentales, 591--601. Anales Jard. Bot. Madrid 47: 411–417.
  Poa annua L. Poa annua L.   28 IPCN online Ghorai, A. & A. Sharma. 1981. Chromosome studies in some Festuceae. J. Indian Bot. Soc. 60: 148–153.
  Poa annua L. Poa annua L.   28 IPCN online Koul, K. K. 1990. Cytology of tetraploid Poa annua L. CIS Chromosome Inform. Serv. 48: 5–7.
  Poa annua L. Poa annua L. 14   IPCN online Bir, S. S. & H. S. Chauhan. 1990. SOCGI plant chromosome number reports---IX. J. Cytol. Genet. 25: 147–148.
  Poa annua L. Poa annua L.   28 IPCN online Morton, J. K. 1993. Chromosome numbers and polyploidy in the flora of Cameroon Mountain. Opera Bot. 121: 159–172.
  Poa annua L. Poa annua L. 14   IPCN online Moinuddin, M., A. A. Vahidy & S. I. Ali. 1994. Chromosome counts in Arundinoideae, Chloridoideae, and Poideae (Poaceae) from Pakistan. Ann. Missouri Bot. Gard. 81(4): 784–791.
  Poa annua L. Poa annua L.   28 IPCN online Xu, B. s., R. f. Weng & M. z. Zhang. 1992. Chromosome numbers of Shanghai plants I. Invest. Stud. Nat. 12: 48–65.
  Poa annua L. Poa annua L.   42 IPCN online Yan, G. x., S. z. Zheng, F. h. Xue, J. f. Yun, L. y. Wang & X. q. Fu. 1995. The chromosome numbers of 35 forage species and their geographical distribution. Grassl. China 1995(1): 16–20.
  Poa annua L. Poa annua L.   28 IPCN online Probatova, N. S., E. G. Rudyka & A. P. Sokolovskaya. 1996. Chromosome numbers in synanthropic plants from the Russian Far East. Bot. Žhurn. (Moscow & Leningrad) 81(5): 98–101.
  Poa annua L. Poa annua L. 14   IPCN online Spies, J. J., S. M. C. v. Wyk, I. C. Nieman & E. J. L. Liebenberg. 1997. Cytogenetic studies in some representatives of the subfamily Pooideae (Poaceae) in South Africa. 3. The tribe Poeae. Bothalia 27: 75–82.
  Poa annua L. Poa annua L. 21   IPCN online Khatoon, S. & S. I. Ali. 1993. Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi.
  Poa annua L. Poa annua L.   28 IPCN online Lövkvist, B. & U. M. Hultgård. 1999. Chromosome numbers in south Swedish vascular plants. Opera Bot. 137: 1–42.
  Poa annua L. Poa annua L.   28 IPCN online Sokolovskaya, A. P. & N. S. Probatova. 1979. Chromosome numbers of some grasses (Poaceae) in the U.S.S.R. flora. III. Bot. Zhurn. 64 (9): 1245–1258.
  Poa annua L. Poa annua L. 14 28 IPCN online Ghorai, A. & A. Sharma. 1981. Chromosome studies in some Festuceae. J. Indian Bot. Soc. 60: 148–153.
  Poa annua L. Poa annua L. 14 28 IPCN online Parkash, O. 1979. Cytological investigations in some grasses of northeastern India (Festucoids, Ischaemum Linn., Eulalia Kunth and Saccharum spontaneum Linn.). Ph.D. Thesis, Chandigarh. 1979.
  Poa annua L. Poa annua L.   28 IPCN online Seledets. 2005. Ecological area of species: karyological aspects. Pages 95--97 in Karyology, Karyosystematics and Molecular Phylogeny. St. Petersburg, Russia.
  Poa annua L. Poa annua L.   28 IPCN online Gregor, T. & R. Hand. 2009. Chromosomenzahlen von Farn- und Samenpflanzen aus Deutschland 4. Kochia 4: 37–46.
!   Poa annua L. Poa annua L.   21+0-1B IPCN online Duckert-Henriod, M. M. & C. Favarger. 1987. Contribution à la cytotaxonomie et à la cytogéographie des Poa (Poaceae = Gramineae) de la Suisse. Denkschr. Schweiz. Naturf. Ges. 100: 1–130.
  Poa annua L. Poa annua L.   28 IPCN67-71 GOULD, F.W. 1968. Chromosome numbers of Texas grasses. Canad. J. Bot. 46: 1315-1325.
  Poa annua L. Poa annua L.   28 IPCN67-71 KOSHY, T.K. 1968. Origin of Poa annua L. in the light of karyotypic studies. Canad. J.--cenet. Cytol. 10: 112-118.
  Poa annua L. Poa annua L.   "28, 24-26" IPCN67-71 SOKOLOVSKAYA, A.P . & N.S. PROBATOVA. 1968. A karyosystematic investigation of the Far-Eastern species of Poa L. (In Russian) Bot. Zurn. 53: 1737-1743.
  Poa annua L. Poa annua L.   28 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.
  Poa annua L. Poa annua L.   28 IPCN67-71 MULLIGAN, G.A., & A.E. PORSILD. 1969. Chromosome numbers of some plants from the unglaciated central Yukon plateau, Canada. Canad. J. Bot. 47: 655-662.
  Poa annua L. Poa annua L. 7 14 IPCN67-71 ELLIS, W.M., D.M. CALDER, & B.T.O. LEE. 1970. A diploid population of Poa annua L. from Australia. Experientia 26-:~1~
  Poa annua L. Poa annua L.   28 IPCN67-71 FERNANDES, A . & M. QUEIROS. 1969. Contribution a la connaissance cytotaxinomique des Spermatophyta du Portugal. I. Gramineae. Bol. Soc. Brat. 43(ser.2l: 3-140.
  Poa annua L. Poa annua L.   14 IPCN67-71 GOULD, F.W. 1970. In IOPB chromosome number reports XXV. Taxon 19: 102-113.
  Poa annua L. Poa annua L.   28 IPCN67-71 POHL, R.W., & G. DAVIDSE. 1971. Chromosome numbers of Costa Rican grasses. Brittonia 23: 293-324.
  Poa annua L. Poa annua L. 14   IPCN75-78 Mehra & Sharma 1977a
  Poa annua L. Poa annua L. 14   IPCN75-78 Mehra & Sharma 1975b
  Poa annua L. Poa annua L.   28 IPCN75-78 Stoeva & Kozuharov 1978
!   Poa annua subsp. annua Poa annua L.   28 Love, 1948 Litardiere 1940, Nannfeldt 1937 a,
  Poa annua L. Poa annua L.   28 IPCN73-74 LOEVE, A., & E. KJELLQVIST. 1973. Cytotaxonomy of Spanish plants. Monocotyledons. Lagascalia 3: 14 7-182. I
  Poa annua L. Poa annua L.   52 IPCN73-74 MEHRA, P.N., & P. REMANANDAN. 1973. Cytological investigations on W.l Himalayan Pooideae. Cytologia 38: 237-258.
  Poa annua L. Poa annua L.   28 IPCN73-74 QUEIROS, M. 1973. Contribuicao para o conhecimento citotaxonomico dj spermatophyta de Portugal. I. Gramineae, Supl. I. Bol. Soc. Brot. I 4 7 ( Ser . 2 ) : 7 7- 1 0 3 .
  Poa annua L. Poa annua L.   28 IPCN73-74 GOULD, F.W., & T.R. SODERSTROM. 1974. Chromosome numbers of some Ceylon grasses. Canad. J. Bot. 52: 1075-1090.
  Poa annua L. Poa annua L.   28 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.
!   Poa annua L. Poa annua L.   14 Kumar, 1987 Mehra, P.N. & Sunder, S. 1969; Ellis, W .M. et al. 1970 ;-Gould, F.W. 1970
!   Poa annua L. Poa annua L.   14, 28 Kumar, 1987 Litardiere, R. de 1938
!   Poa annua L. Poa annua L.   28 Kumar, 1987 Avdulov, N.P. (Fedorov) ; Katter- mano, G. J9JO; Tisc:hler, G. 1934; Armstrong, J.M. 1'937; Nannfeldt, J.A. 1937a; Rohweder, H. 1937 ; Sokolovskaya, A .P. & Strelkova, O.S. (Fedorov) ; Parodi, L.R. 1946 ; Heiser, C.B. & Whitaker, T.W. 1948 ; P6lya, L. 1949 ; Tateoka, T. 1953 ; Hubbard, C.E. 1954 ; Tutin, T.G. 1954, 1957 ; Love, A. & L(}ve, D. 1956b ; Jrirgensen, C.A. et al. 1958 ; Sokolovskaya, A.P. (Fedorov); Diers, L. 1961 ; Beaman, J.H. et a!. 1962 ; Chen, C.C. & Hsu, C.C. 1962 ; Chrtck, J. & Jirasek, V. 1962 ; Gadella, T.W.J & Kliphuis, E. 1964 ; Gould, F.W. 1968 ; Koshy, T.K. 1968 ; Taylor, R.L. & Mulligan, G .A. 1968 ; Fernandes, A. & Queiros, M. 1969 ; Mulligan, G.A. & Porsild, A.B. 1969 ; Christopher, J. & Abraham, A. 1971 ; Pohl, R.W. & Davidse, G. 1971 ; Chopanov, P. & Yurtsev, V.N. 1973 ; Gould, F.W. & Soder- strom, T.R. 1974; Mehra, P.N. & Sharma, M.L. 1975c, 1977b; Verma, S.C. & Nagpal, R.P. 1976 ; Stoeva, M.P. 1977 ; Stoeva, M.P. & Kozuharov, S.I. 1978
!   Poa annua L. Poa annua L.   28, 24-26 Kumar, 1987 Sokolovskaya, A.P. & Probatova, N.S. 1968
!   Poa annua L. Poa annua L.   28, 28+1B Kumar, 1987 Mehra, P.N. et al. 1968
!   Poa annua L. Poa annua L.   28+1B Kumar, 1987 Mehra, P.N. & Kohli, B.L. 1966
!   Poa annua L. Poa annua L.   52 Kumar, 1987 Mehra, P.N. & Remanandan, P. 1973a
!   Poa annua L. Poa annua L.   28 eFlora  
!   Poa annua L. Poa annua L.   28 Darlington, 1955 Litardiere 1938
!   Poa annua L. Poa annua L.   28 C-values database Bennett MD. 1972. Nuclear DNA content and minimum generation time in herbaceous plants. Proceedings of the Royal Society of London Series B-Biological Sciences. 181:109-135
  Poa annua L. Poa annua L.   28 Cave1956supp Tateoka 1954
  Poa annua L. Poa annua L.   28 Cave1957 Tutin
  Poa annua L. Poa annua L.   28 Cave1958 Jorgensen et al. 1958
  Poa annua L. Poa annua L.   14 Cave1958 Hovin 1958
  Poa annua L. Poa annua L. 14   Cave1962 Beaman et al. 1962; Chen & Hsu 1962
  Poa annua L. Poa annua L.   28 Cave1963 Gadella & Klip. 1963
  Poa annua L. Poa annua L. 7   CromoCat 2015 Ellis, W. N., Calder, D. M. & Lee, B. T. O. (1970). A diploid population of Poa annua L. from Australia. Experientia 26: 1156.
  Poa annua L. Poa annua L. 21   CromoCat 2015 Khatoon, S. & Ali, S. I. (1993). Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi
  Poa annua L. Poa annua L. 14-0-3B 0 CromoCat 2015 Kaur, H, Gupta, R. C & Kumari, S. (2011). IAPT/IOPB Chromosome Data 12 Taxon 60:1789-1789
  Poa annua L. Poa annua L. 14+1B   CromoCat 2015 Bir, S. S. & Sahni, M. (1987). Chromosomal and morphological variations in grasses of Punjab Journal of Cytology and Genetics 22: 12-22
  Poa annua L. Poa annua L. 14   CromoCat 2015 Bir, S. S. & Chauhan, H. S. (1990a). SOCGI plant chromosome number reports-X J. Cytol. Genet. 25:147-148
  Poa annua L. Poa annua L. 14   CromoCat 2015 Bir, S. S. & Sahni, M. (1986). SOCGI plant chromosome number reports -- IV J. Cytol. Genet. 21: 152-154
  Poa annua L. Poa annua L. 14   CromoCat 2015 Bir, S. S. & Singh, C. (1983). SOCGI plant chromosome number reports. I. J. Cytol. Genet. 18: 60-61.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Devesa, J. A. & Luque, T. (1988). Contribución al conocimiento cariológico de la subfam. Pooideae (Poaceae) en el SW de España. Bol. Soc. Brot. 61: 281-304.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Devesa, J. A., Luque, T. & Gómez, P. (1990c). Números cromosomáticos de plantas occidentales, 591-601. Anales Jard. Bot. Madrid 47: 411-417.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Devesa, J. A., Ruiz, T., Ortega, A., Carrasco, J., Viera, M., Tormo, R. & Pastor, J. (1990b). Contribucion al conocimiento cariológico de las Paoceae en Extremadura (España). I. Bol. Soc. Brot. 63: 29-66.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Duckert-Henriod, M. M. & Favarger, C. (1987). Contribution à la cytotaxonomie et a la cytogéographie des Poa (Poaceae = Gramineae) de la Suisse Denkschriften der Schweizerischen [Naturforschenden Gesellschaft] [Akademie der Naturwissenschaften] 100: 1-130
  Poa annua L. Poa annua L. 14   CromoCat 2015 Ghorai, A. & Sharma, A. (1981). Chromosome studies in some Festuceae Journal of the Indian Botanical Society 60: 148-153
  Poa annua L. Poa annua L. 14   CromoCat 2015 Koul, K. K. & Gohil, R. N. (1987). SOCGI plant chromosome number reports -- IV [i.e., V] J. Cytol. Genet. 22: 161-162
  Poa annua L. Poa annua L. 14   CromoCat 2015 Mehra, P. N. (1982). Cytology of East Indian grasses
  Poa annua L. Poa annua L. 14   CromoCat 2015 Moinuddin, M., A. A. Vahidy & S. I. Ali (1994). Chromosome counts in Arundinoideae, Chloridoideae, and Poideae (Poaceae) from Pakistan Ann. Missouri Bot. Gard. 81(4): 784-791
  Poa annua L. Poa annua L. 14   CromoCat 2015 Mulligan, G. A. (1984). Chromosome numbers of some plants native and naturalized in Canada. Naturaliste Canad. 111: 447-449.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Parkash, O. (1979). Cytological investigations in some grasses of northeastern India (Festucoids, Ischaemum Linn., Eulalia Kunth and Saccharum spontaneum Linn.). Ph.D. Thesis, Chandigarh. 1979.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Spies, J. J. & S. P. Voges. (1988). Chromosome studies on African plants. 7. Bothalia 18: 114-119.
  Poa annua L. Poa annua L. 14   CromoCat 2015 Spies, J.J., S.M.C. Van Wyk, I.C. Nieman & E.J.L. Liebenberg (1997). Cytogenetic studies in some representatives of the subfamily Pooideae (Poaceae) in South Africa. 3. The Tribe Poeae Bothalia 27:75-82
  Poa annua L. Poa annua L. 0 28 CromoCat 2015 Korobkov, A. A., Kotseruba, V. V., Probatova, N. S. & Gnutikov, A. A. Nina S. Probatova2* & Aleksandr A. Gnutikov1 (2012). IAPT/IOPB Chromosome Data 13 Taxon 61:895-897
  Poa annua L. Poa annua L.   14 CromoCat 2015 Ellis, W. N., Calder, D. M. & Lee, B. T. O. (1970). A diploid population of Poa annua L. from Australia. Experientia 26: 1156.
  Poa annua L. Poa annua L.   14 CromoCat 2015 Gould, F. W. (1970). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports XXV]. Taxon 19(1): 104-105.
  Poa annua L. Poa annua L.   24-26 CromoCat 2015 Sokolovskaya, A. P. & N. S. Probatova. (1968). A karyosystematic investigation of the far eastern species of Poa L. Bot. Žurn. 53: 1737-1743.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Armstrong, J. M. (1937). A cytological study of the genus Poa. Canad. J. Res. 15: 281-297.
  Poa annua L. Poa annua L.   28 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.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Auquier, P. & Renard, R. (1975). Nombres chromosomiques de quelques Angiospermes du Rwanda, Burundi et Kivu (Zaïre). I. Bull. Jard. Bot. Natl. Belgique 45: 421-445.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Avdulov, N. P. (1928). Systematicheskaya kariologiya semeestva Gramineae. Drievnik vsesojuznogo Sezda Bot. Leningrade 1928: 65-66.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Avdulov, N. P. (1931). Karyo-systematische Untersuchungen der Familie Gramineen. Bull. Appl. Bot., Genet. & Plant Breeding Suppl. 43: 1-438.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Bowden, W. M. (1961). Chromosome numbers and taxonomic notes on northern grasses. IV. Tribe Festuceae: Poa and Puccinellia. Canad. J. Bot. 39: 123-138.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Chopanov, P. & Yurtsev, V. N. (1973). Chromosome numbers of some grasses of Turkmenia. Bot. Žurn. 58: 301-302.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Duckert-Henriod, M. M. & Favarger, C. (1987). Contribution à la cytotaxonomie et a la cytogéographie des Poa (Poaceae = Gramineae) de la Suisse Denkschriften der Schweizerischen [Naturforschenden Gesellschaft] [Akademie der Naturwissenschaften] 100: 1-130
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  Poa annua L. Poa annua L.   28 CromoCat 2015 Mulligan, G. A. & A. E. Porsild. (1969). Chromosome numbers of some plants from the unglaciated central Yukon plateau, Canada. Canad. J. Bot. 47: 655-662.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Nannfeldt, J. A. (1937). The chromosome numbers of Poa sect. Ochlopoa and their taxonomical significance. Bot. Not. 90: 238-254.
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  Poa annua L. Poa annua L.   28 CromoCat 2015 Pohl, R. W. & G. Davidse. (1971). Chromosome numbers of Costa Rican grasses. Brittonia 23: 293-324.
  Poa annua L. Poa annua L.   28 CromoCat 2015 Pólya, L. (1949). Chromosome numbers of some Hungarian plants. Acta Geobot. Hung. 6: 124-137.
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