Dates of First Grasses


Species 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
April
Alopecurus pratensis 27.4   4.4   3.5 28.3 12.5 27.4 16.5 24.4 23.4 28.4   3.4 19.4 11.4 15.4 16.4   7.4   9.4
Ochlopoa annua 10.5 16.5 16.5 17.4   8.5 30.4 30.4 24.4 25.4 20.4   4.4 13.4 12.4 15.5 20.4   2.5   9.4
Anthoxanthum odoratum   9.5 15.5 15.5 17.4 11.5   9.5   5.5   6.5 10.5 19.5 23.4   9.5   7.5 17.5 29.4 13.5 21.4
Bromus racemosus 12.5 ? 14.5 24.4   8.5 27.4 16.5   2.5   8.5 19.5 25.4   7.5 10.5 16.5   2.5   1.5 23.4
Poa pratensis ?   4.6   4.6   2.5 14.5 16.5 27.5   5.5 10.5 20.5 27.4 13.5   9.5 15.5   9.5 13.5 26.4
May
Dactylis glomerata 20.5 23.5 14.5   2.5 17.5   9.5 27.5   5.5 19.5 18.5 17.4 13.5 19.5 16.5 12.5 17.5   7.5
Poa nemoralis 11.5 18.5 15.5 22.5 26.5 25.5 28.5 18.5 24.5 10.6 14.5 27.5 19.5 20.5 16.5 18.5   8.5
Arrhenatherum elatius ? ?   8.6 ?   9.6 17.6 ? ? 30.6 ? 30.5   7.6 11.6 30.5 16.5   1.5 16.5
Lolium perenne   3.6 29.5   2.6   1.5 20.5 23.5 14.6 18.5 24.5 13.6 14.5 15.5 24.5 23.5 12.5 19.5 16.5
Bromus hordeaceus ? 18.5 ? 23.5 25.5 25.5   6.6   9.5 20.5   1.6 14.5   4.6   9.6 25.5 27.5 31.5 16.5
Holcus lanatus ? 27.5   2.6 12.5 14.5 24.5 ? 13.5 17.6 ? 14.5 28.5 27.5 24.5 30.5 31.5 21.5
Bromopsis inermis 15.6 17.6 ? ?   4.6 13.6 ? ? ? ? ? ? 10.6 ? ? ? 24.5
Avenella flexuosa 28.6   1.6   2.6   2.5 13.5 25.5   3.6   9.5 22.5   1.6 16.5 21.5 27.5 21.5 24.5 25.5 29.5
Glyceria fluitans   7.6   1.6   4.6 10.5 13.5   3.6 11.6 21.5 22.5 15.6   5.6 11.6 26.6 26.5 24.5 25.5 29.5
Holcus mollis 11.6   4.6 25.6   3.6   3.6 19.6 16.6 14.5 25.5 15.6 22.6 ? ? ? 30.5 ? 29.5
Trisetum flavescens ? ? ? 23.5 16.5 22.5 ? 23.5 27.5 18.6 23.6   7.6   5.6 18.6 ? 29.5 30.5
June
Milium effusum ? 25.5   3.6 ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Glyceria declinata ? ? ? ? 10.6   4.6 27.6 ? 28.6   8.7 15.6   4.6 ? ? ? ? ?
Drymochloa sylvatica 28.6   8.6 ?   6.6 ? ? ? ? ? ? ? ? ? ? ? ? ?
Alopecurus geniculatus ? ?   9.6 22.6 19.5   4.6 ? ? ? ? ?   9.6 ? ? ? ? ?
Elytrigia repens   4.7   4.6 25.6 19.6   2.6   3.6 ? ? 24.7   9.7 29.5 25.6 24.6   9.7 13.6 ? ?
Phleum pratense ? 13.6 25.6   8.6   8.6   3.6 16.6 30.5 17.6 26.6 15.6 14.6 26.6 14.6 31.5   4.6 12.6
Deschampsia cespitosa 16.6 18.6 24.6 12.6   1.6   9.6 13.6   1.6 17.6 18.6 12.6 24.6   9.6 13.6 27.5   1.6 18.6
Phalaroides arundinacea 28.6 10.6 20.6 12.6 10.6   9.6   6.7 23.7 25.7   8.7 22.6 26.6 10.7 14.6 18.6 ? ?
Poa trivialis 15.6 29.5   2.6 <3.6   4.6 24.6 ? ? ? 10.7 ? ? ? ? 20.6 ? ?
Festuca filiformis ? 29.5 ? ? ? ? ? ? ? 19.7 ? ? 22.6 ? ? ? ?
Molinia caerulea 10.6 12.6 24.6 13.6 10.6 13.6 25.6 17.6   9.6 13.6   9.6 18.6 29.6   4.7 30.5 29.6 23.6
Nardus stricta ? 11.6 ? ? 10.6   9.6 26.6   7.6 ? ? 22.6 26.6 <10.8   25.5 <6.7 ? 23.6
Festuca rubra ?   5.6 25.6 19.6 ? ? ? 14.6 ? ? ? ? ? ? ? ? 25.6
July
Calamagrostis arundinacea ? 19.6 ? ? 13.7 ? ? ? ? 26.6 ? ? ? ? ? 26.6   2.7
Agrostis gigantea 17.7   6.8 18.7 16.7 13.7 15.8 ? ? ? 10.7 ? ? 19.7 ?   2.7 ? ?
Cynosurus cristatus   3.6 25.5   2.6 <3.6 <7.6 19.6 ? ?   9.6 13.6 15.6 11.6   4.7   5.7 30.5   3.7 ?
Agrostis stolonifera ? 28.6 ?   7.7 ? ? ? ? ? ? ? ? ? ? ? ? ?
Agrostis capillaris ?   4.7 ?   7.7   9.7 14.7   5.7 10.7   9.7   8.7 16.7   7.7 19.7   3.7 28.6 ? 11.7
Agrostis canina ? ? ? <8.7 ? ? ? ? ? 10.7 26.7 18.7 ?   4.7 ? ? 20.7


Translations

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