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 21.4
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 21.4
May
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 10.5
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 18.5
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 19.5
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 19.5
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 20.5
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 ?
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 28.5
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 ?
June
Milium effusum ? 25.5   3.6 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
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   4.6
Glyceria declinata ? ? ? ? 10.6   4.6 27.6 ? 28.6   8.7 15.6   4.6 ? ? ? ? ? ?
Poa trivialis 15.6 29.5   2.6 <3.6   4.6 24.6 ? ? ? 10.7 ? ? ? ? 20.6 ? ?   5.6
Arrhenatherum elatius ? ?   8.6 ?   9.6 17.6 ? ? 30.6 ? 30.5   7.6 11.6 30.5 16.5   1.5 16.5   6.6
Drymochloa sylvatica 28.6   8.6 ?   6.6 ? ? ? ? ? ? ? ? ? ? ? ? ? ?
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   6.6
Alopecurus geniculatus ? ?   9.6 22.6 19.5   4.6 ? ? ? ? ?   9.6 ? ? ? ? ? ?
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 10.6
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 10.6
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 ? 13.6
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 14.6
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 ? ?
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 ? ?
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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