{"id":7409,"date":"2024-10-13T16:17:39","date_gmt":"2024-10-13T14:17:39","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=7409"},"modified":"2025-06-14T19:11:38","modified_gmt":"2025-06-14T17:11:38","slug":"anthemis-arvensis-anthemis-des-champs","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=7409","title":{"rendered":"Anthemis arvensis subsp. arvensis. Anth\u00e9mis des champs."},"content":{"rendered":"\n<p class=\"has-medium-font-size\">Anthemis arvensis est un peu exigeant pour son identification. Ainsi, les camomilles au sens large ne peuvent \u00eatre v\u00e9ritablement distingu\u00e9es qu&rsquo;en d\u00e9montant le capitule, sans n\u00e9cessairement attendre la graine (cette derni\u00e8re remarque en contradiction apparente avec les recommandations du Conservatoire Botanique National du Bassin Parisien) mais alors: \u00e0 condition d&rsquo;observer suffisamment finement la feuille.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Cladanthus mixtus se distingue car les fleurs en languettes sont nettement jaunes \u00e0 la base. Cependant, cet indice doit \u00eatre consid\u00e9r\u00e9 comme insuffisant en soi . D&rsquo;autres plantes sont plus discr\u00e8tement jaunes \u00e0 la base. Tel cet Anth\u00e9mis, qui peut l&rsquo;\u00eatre tr\u00e8s tr\u00e8s discr\u00e8tement.<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Noter que les manipulations \u00ab\u00a0intrusives\u00a0\u00bb ne sont licites que tant que la plante n&rsquo;est pas prot\u00e9g\u00e9e. La plante trait\u00e9e ici est soumise \u00e0 r\u00e9glementations dans plusieurs r\u00e9gions. Voir plus bas, et explications.<\/mark><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Ainsi, sur la photo ci-dessous, je m&rsquo;explique mal la tache jaune sur les languettes blanches. Peut-\u00eatre un effet de lumi\u00e8re au moment de la photographie? Ou encore une curieuse piss\u00e9e de pollen? Noter qu&rsquo;on appelle fleurs en languettes ou <strong>fleurs ligul\u00e9es<\/strong> celles qui ressemblent \u00e0 des p\u00e9tales. <strong>Blanches<\/strong> chez Anthemis arvensis<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"986\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2087.jpg\" alt=\"\" class=\"wp-image-7412\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2087.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2087-259x300.jpg 259w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2087-768x891.jpg 768w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2087-300x348.jpg 300w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-medium-font-size\"><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Chamaemelum nobilis peut \u00e9galement avoir des t\u00e2ches jaunes discr\u00e8tes \u00e0 la base de ses fleurs en languettes. Mais cette derni\u00e8re a des feuilles dont les segments ultimes sont lin\u00e9aires-filiformes et non dent\u00e9es. Ce qui n&rsquo;est pas le cas ici:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"679\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2086.jpg\" alt=\"Anth\u00e9mis arvensis: feuilles.\" class=\"wp-image-7410\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2086.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2086-300x240.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2086-768x613.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Il est important de bien regarder la forme des segments de cet Anth\u00e9mis des champs, ainsi que  le fait qu&rsquo;ils soient <strong>apicul\u00e9s-dent\u00e9s.<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"567\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2088.jpg\" alt=\"\" class=\"wp-image-7413\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2088.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2088-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2088-768x512.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-medium-font-size\">Anthemis arvensis pr\u00e9sente des bract\u00e9es scarieuses au niveau du capitule. L&rsquo;aspect scarieux se trouve beaucoup en haut de ces bract\u00e9es. Ces bract\u00e9es, ce sont celles situ\u00e9es sous le capitule et formant le \u00ab\u00a0cul de la fleur\u00a0\u00bb. Anthemis arvensis est en principe <strong>rameux<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Comment bien distinguer Anthemis arvensis:<\/strong><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">La distinction s&rsquo;op\u00e8re en fait par l&rsquo;observation des fleurs du disque central (les fleurs tubul\u00e9es). Ici, l&rsquo;\u00e9caille (ou bract\u00e9ole) se termine en pointe. Noter que c&rsquo;est aussi le cas chez Cladanthus mixtus alors que les Chamaemelum se distinguent par leurs \u00e9cailles \u00e0 sommets nettement \u00e9largis comme en une cuiller assez plate.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les plantes en tous cas hexagonales du genre Cota, comme <a href=\"https:\/\/lecompagnonrouge.fr\/?p=7123\">Cota tinctoria<\/a>, ont des \u00e9cailles qui se terminent par une arr\u00eate (assez longue: soit environ 30 pour cent de la longueur de la bract\u00e9ole).<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Ci-desous premi\u00e8re photo de l&rsquo;\u00e9caille:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"438\" height=\"368\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/tubulecailleIMG_2081.jpg\" alt=\"\" class=\"wp-image-7414\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/tubulecailleIMG_2081.jpg 438w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/tubulecailleIMG_2081-300x252.jpg 300w\" sizes=\"auto, (max-width: 438px) 100vw, 438px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">La distinction, notamment avec Cladanthus est visible \u00e0 la forme des fleurs tubul\u00e9es au centre de l&rsquo;inflorescence. Ici, la base <strong>des fleurs est renfl\u00e9e<\/strong>, et ces fleurs sont<strong> comme \u00ab\u00a0pos\u00e9es\u00a0\u00bb<\/strong> sur le r\u00e9ceptacle. Dans les faits: <strong>sur l&rsquo;ovaire, sur la future graine<\/strong> (alors que chez Cladanthus mixtus, la base de la fleur fait comme un chapeau recouvrant la graine seulement d&rsquo;un c\u00f4t\u00e9.)<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Cette plante est prot\u00e9g\u00e9e dans plusieurs r\u00e9gions. Voir plus bas et explications.<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"531\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2102.jpg\" alt=\"Anthemis arvensis: fleurs tubul\u00e9es et \u00e9cailles\" class=\"wp-image-7437\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2102.jpg 843w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2102-300x189.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_2102-768x484.jpg 768w\" sizes=\"auto, (max-width: 843px) 100vw, 843px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Bien remarquer la forme des <strong>bract\u00e9oles <\/strong>et qu&rsquo;elles sont <strong>pli\u00e9es<\/strong>. Et qu&rsquo;elles sont pr\u00e9sentes tant au centre que sur le bord du capitule.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Que ces bract\u00e9oles sont <strong>non dent\u00e9es-\u00e9rod\u00e9es<\/strong> ou plus pr\u00e9cis\u00e9ment qu&rsquo;elles <strong>sont r\u00e9guli\u00e8rement, assez parfaitement enti\u00e8re: <\/strong>La distinction avec le tr\u00e8s tr\u00e8s proche Anthemis ruthenica va aussi pouvoir s&rsquo;op\u00e9rer sur la feuille dont les segments sont \u00e9galement apicul\u00e9s. Mais seulement \u00e0 l&rsquo;extr\u00e9mit\u00e9 ext\u00e9rieure de chaque segment. Anthemis ruthenica ne semble pas poss\u00e9der de segments dent\u00e9s.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Suite \u00e0 la pollinisation, le p\u00e9doncule reste mince<\/strong>: il s&rsquo;agit donc d&rsquo;Anth\u00e9mis arvensis subsp. arvensis.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Risques de confusions:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chamaemelum nobile (En principe rare dans le nord-est de la France. Chemin, bord d&rsquo;\u00e9tangs, pelouses m\u00e9sohygrophyles. sur silice), <\/li>\n\n\n\n<li>Chamaemelum fuscatum (des friches acidiphiles m\u00e9sophile jusqu&rsquo;\u00e0 amphibie du sud de la France. Les bract\u00e9es de l&rsquo;involucre sont bord\u00e9es de brun.), <\/li>\n\n\n\n<li>Tripleurospermum inodorum (le T. maritimum est une halophyte \u00e0 feuilles subcharnues. T. inodorum se trouve quant \u00e0 lui dans les cultures et friches eutrophiles \u00e0 annuelles),<\/li>\n\n\n\n<li>Matricaria chamomilla (Cultures et friches eutrophiles \u00e0 annuelles), <\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Cota altissima (des friches \u00e0 annuelles basiphiles. Disparue de Corse, Quasi menac\u00e9e et vuln\u00e9rable en Limousin, Vuln\u00e9rable en Aquitaine),<\/mark> <\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Cota triumfettii (Pelouse rocailleuses, friches s\u00e8ches et \u00e0 sols basiques du sud de la France. Vuln\u00e9rable en Rh\u00f4ne-Alpes),<\/mark> <\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Cladanthus mixtus (Des friches ouvertes acidiphiles plut\u00f4t corses et m\u00e9diterran\u00e9ennes. Pr\u00e9sente ou anciennement pr\u00e9sente ailleurs dans l&rsquo;Hexagone. Plante thermophile. Disparue de Picardie, Prot\u00e9g\u00e9e en \u00cele de France, Bourgogne, Bretagne, et Midi-Pyr\u00e9n\u00e9es), <\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Anacyclus clavatus (surtout Friches eutrophiles m\u00e9diterran\u00e9ennes. Vuln\u00e9rable en Corse en Midi-Pyr\u00e9n\u00e9es)<\/mark>, <\/li>\n\n\n\n<li>Les Anthemis, et parmi ceux-ci le risque de confusion le plus fort est avec Anthemis ruthenica (pelouses s\u00e8ches acidiphiles du Haut Rhin, uniquement. Dont l&rsquo;arriv\u00e9e est r\u00e9cente dans l&rsquo;Hexagone.)<\/li>\n<\/ul>\n\n\n\n<p class=\"has-medium-font-size\">Les genres Anthemis, Chamaemelum, Cladanthus, Cota (?), Matricaria, et Tripleurospermum semblent cytologiquement plus que proche. Ils semblent pouvoir s&rsquo;hybrider. Aussi Jauzein sugg\u00e8re qu&rsquo;ils puissent \u00eatre rassembl\u00e9s sous un seul genre. Sachant que sous l&rsquo;angle phylog\u00e9n\u00e9tique, concernant Cota, la position de Jauzein semble \u00eatre discut\u00e9e.<\/p>\n\n\n\n<p class=\"has-small-font-size\"><a href=\"https:\/\/lecompagnonrouge.fr\/?s=asterales\">Asterales<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=asteraceae\">Asteraceae<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=asteroideae\">Asteroideae<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=anthemideae\">Anthemideae<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=cladanthus\">Anthemis<\/a> arvensis subsp. arvensis<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">PROTECTION D&rsquo; Anthemis arvensis subsp arvensis:<\/mark><\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">En danger critique d&rsquo;extinction en \u00cele-de-France. Code crit\u00e8res C1 (d\u00e9clin continu.)<\/mark><\/li>\n<\/ul>\n\n\n\n<p>Explications n\u00e9cessaires: La plante a \u00e9t\u00e9 photographi\u00e9e au parc des Beaumonts \u00e0 Montreuil-sous-Bois, une ancienne carri\u00e8re de Gypse: je ne donne pas cher de la survie des jeunes pousses de l&rsquo;ann\u00e9e prochaines. La plante semble donc avoir \u00e9t\u00e9 introduite suite \u00e0 des travaux de r\u00e9am\u00e9nagement du parc par l&rsquo;intercommunalit\u00e9, au bord d&rsquo;un prairial \u00e0 venir. Elle se trouve alors en compagnie d&rsquo;un lin horticole (<a href=\"https:\/\/lecompagnonrouge.fr\/?p=7498\">Linum grandiflorum<\/a>), d&rsquo;un souci, de myosotis (que je n&rsquo;ai pas pris le temps d&rsquo;observer).<\/p>\n\n\n\n<p>Suite \u00e0 une premi\u00e8re s\u00e9rie de photos ne permettant pas une identification suffisante (voir photo 2: bases jaunes des fleurs en languettes), je d\u00e9cide de retourner en esp\u00e9rant avoir des photos plus pr\u00e9cises. Notamment des capitules en fruits (quitte \u00e0 en prendre un pour la photo et de le remettre au sol ensuite au niveau de la plante -geste pas franchement licite). C&rsquo;est alors que je trouve alors \u00e7\u00e0. La grande faucheuse vient juste de passer. J&rsquo;ai fini par retrouver non les fruits mais les fleurs dans les andains; d&rsquo;o\u00f9 les photos des capitules \u00e9clat\u00e9s pr\u00e9sent\u00e9es ici:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_20241016_173751-768x1024.jpg\" alt=\"\" class=\"wp-image-7459\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_20241016_173751-768x1024.jpg 768w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_20241016_173751-225x300.jpg 225w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_20241016_173751-300x400.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/10\/IMG_20241016_173751.jpg 850w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">En Danger critique d&rsquo;extinction en Picardie. Code B2Ab ii (d\u00e9clin continu des zones d&rsquo;occupations ou localit\u00e9s, ou occupations s\u00e9v\u00e8rement fragment\u00e9es)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Pratiquement menac\u00e9e en Bretagne. Code B2AB ii et iii ( zone d&rsquo;occupations trop fragment\u00e9es ou qualit\u00e9s de l&rsquo;habitat)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Pratiquement menac\u00e9e en Haute-Normandie.  Codes A3c et B2Biii. R\u00e9duction de la zone d&rsquo;occupation pr\u00e9vue en raison de la qualit\u00e9 de l&rsquo;habitat ou des zones d&rsquo;occurrences. Mais aussi<\/mark> <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">zones d&rsquo;occupations trop s\u00e9v\u00e8rement fragment\u00e9es.<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Pratiquement menac\u00e9e en Pays de la Loire. Code B2b i,ii,iii,iv,v (concerne les zones d&rsquo;occupations fragment\u00e9s et le nombre de localit\u00e9s: d\u00e9clins, superficie, qualit\u00e9 de l&rsquo;habitat, ainsi que nombre d&rsquo;individus matures) <\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Pratiquement menac\u00e9e en Franche-Comt\u00e9. Code A2C (r\u00e9ductions des populations dont les causes ne sont pas comprises, ne cessent pas, ou alors ne sont pas r\u00e9versibles)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Vuln\u00e9rable en Basse-Normandie. Code D2 (la zone d&rsquo;occupation \u00e9tant tr\u00e8s restreinte et le risque raisonnable d&rsquo;une absence de prise en compte et d&rsquo;une protection peut alors amener la plante \u00e0 l&rsquo;extinction)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">Vuln\u00e9rable dans le Nord-Pas-De-Calais. Code D2 (la zone d&rsquo;occupation \u00e9tant tr\u00e8s restreinte et le risque raisonnable d&rsquo;une absence de prise en compte et d&rsquo;une protection peut alors amener la plante \u00e0 l&rsquo;extinction)<\/mark><\/li>\n\n\n\n<li>D\u00e9terminante <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#znieff\">Znieff<\/a> dans la Sarthe<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les statuts consult\u00e9s sur le site de l&rsquo;INPN (MNHN) 19\/10\/2024<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Ecologie.<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Friches d&rsquo;annuelles et cultures, moissons. Sa pr\u00e9sence normale hors des moissons l&rsquo;exclue en principe des messicoles strictes.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Annuelles commensales des cultures acidophiles. <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=3348\/#Aperetalia-spicae-venti\">Sperguletalia arvensis<\/a> H\u00fcppe &amp; Hofmeister 1990<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Moissons du <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=3348\/#Scleranthenion-annui\">S<em>cleranthion annui<\/em><\/a> (Kruseman &amp; J. Vlieger 1939) Sissingh <em>in <\/em>Westhoff, Dijk, Passchier &amp; Sissingh 1946. Flore commensale de cultures de c\u00e9r\u00e9ales sur sols acide. [lien \u00e0 venir]<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anthemis arvensis est un peu exigeant pour son identification. Ainsi, les camomilles au sens large ne peuvent \u00eatre v\u00e9ritablement distingu\u00e9es qu&rsquo;en d\u00e9montant le capitule, sans n\u00e9cessairement attendre la graine (cette derni\u00e8re remarque en contradiction apparente avec les recommandations du Conservatoire Botanique National du Bassin Parisien) mais alors: \u00e0 condition d&rsquo;observer suffisamment finement la feuille. Cladanthus&#8230;<\/p>\n","protected":false},"author":1,"featured_media":7411,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[180,1078,12,132],"tags":[],"class_list":["post-7409","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anthemideae","category-anthemis-arvensis","category-asteraceae","category-asteroideae"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Anthemis arvensis subsp. arvensis. 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