{"id":4152,"date":"2023-06-04T12:48:26","date_gmt":"2023-06-04T10:48:26","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=4152"},"modified":"2025-10-12T14:51:31","modified_gmt":"2025-10-12T12:51:31","slug":"bromus-erectus-brome-erige","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=4152","title":{"rendered":"Bromopsis erecta subsp. erecta. Brome \u00e9rig\u00e9."},"content":{"rendered":"\n<p class=\"has-medium-font-size\">[Bromopsis erecta = Bromus erectus]<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Ce brome se remarque:<\/strong><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">Chez Bromopsis erecta, le rameau le plus long de la grappe est de taille mod\u00e9r\u00e9e (donn\u00e9 comme inf\u00e9rieur \u00e0 8 cm); les \u00e9pillets ne pendent pas \u00e0 l&rsquo;\u00e9tat adulte. La grappe n&rsquo;est pas retombante.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Ce brome pr\u00e9sente des \u00e9pillets* dress\u00e9s \u00e0 lemmes* ayant des arr\u00eates* nettement visibles mais ni \u00e9gales ni plus grandes que la taille la lemme (+ de 4 mm et &#8211; de 1 cm). Le rapport de longueur entre les arr\u00eates et les fleurons est bien suggestif.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"567\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/IMG_9945.jpg\" alt=\"\u00e9pillets du brome \u00e9rig\u00e9\" class=\"wp-image-4154\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/IMG_9945.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/IMG_9945-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/IMG_9945-768x512.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>El\u00e9ments de description de Bromopsis erecta:<\/strong><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">Une touffe est pr\u00e9sente hors la zone remani\u00e9e et enclose du parc des Beaumonts en 2024,  et dans laquelle je le trouvais les ann\u00e9es pr\u00e9c\u00e9dentes. Cette touffe est \u00e0 peu pr\u00e8s en face. <\/p>\n\n\n\n<p class=\"has-medium-font-size\">Typiquement, ce brome pr\u00e9sente un <strong>rhizome pratiquement nul<\/strong>. Le <strong>plateau de tallage <\/strong>est<strong> contigu<\/strong>. La touffe est assez dense.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">La position tr\u00e8s couch\u00e9e des chaumes sur les photos suivantes, je la rapporte \u00e0 de probables jeux canins.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Il s&rsquo;en suit par ailleurs que le comptage par tige vaut pour cette touffe un peu plus de 27 (quelques chaumes sont couch\u00e9s). Par ailleurs, toujours pr\u00e9sent en 2024 dans la zone enclose, laquelle a \u00e9t\u00e9 fauch\u00e9e un peu t\u00f4t cette ann\u00e9e. <\/p>\n\n\n\n<p class=\"has-medium-font-size\">La position de la plante a un c\u00f4t\u00e9 un peu intriguant dans un Xanthorion parietinae* (communaut\u00e9 de lichens beaucoup pr\u00e9sente dans les agglom\u00e9rations), du fait d&rsquo;avoir un petit trait oligotrophile, mais cela semble devoir tenir \u00e0 un spectre trophique un peu large &#8230;<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Ces \u00e9l\u00e9ments d&rsquo;introductions achev\u00e9s &#8230; J&rsquo;indique par la suite une s\u00e9rie de caract\u00e8res descriptifs:<\/p>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><strong>Caract\u00e8res descriptifs de Bromopsis erecta:<\/strong><\/h4>\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\/05\/IMG_1427.jpg\" alt=\"Bromus erectus\" class=\"wp-image-6505\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1427.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1427-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1427-768x512.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\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\/05\/IMG_1431.jpg\" alt=\"Bromus erectus\" class=\"wp-image-6506\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1431.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1431-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1431-768x512.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">La pal\u00e9ole (parfois la glume) est souvent +- cili\u00e9e. il s&rsquo;agit de tr\u00e8s <strong>courts cils et bien \u00e9pais<\/strong>. Forme \u00e0 l&rsquo;\u0153il si l&rsquo;on regarde lat\u00e9ralement une sorte de \u00ab\u00a0dents de scie\u00a0\u00bb. La longueur de l&rsquo;<strong>arr\u00eate<\/strong> est de toute fa\u00e7on toujours sup\u00e9rieure \u00e0 2-3 mm, <strong>\u00e9galant environ la moiti\u00e9 des lemmes<\/strong>.<\/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\/05\/IMG_1513a.jpg\" alt=\"\" class=\"wp-image-6507\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513a.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513a-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513a-768x512.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"797\" height=\"950\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513.jpg\" alt=\"Fleurs. Lemmes et pal\u00e9oles cilli\u00e9es\" class=\"wp-image-6508\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513.jpg 797w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513-252x300.jpg 252w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513-768x915.jpg 768w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1513-300x358.jpg 300w\" sizes=\"auto, (max-width: 797px) 100vw, 797px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">La <strong>feuille caulinaire, plane, pr\u00e9sente \u00e0 la base des \u00e9paulements arrondis<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"766\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1430.jpg\" alt=\"\" class=\"wp-image-6509\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1430.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1430-300x270.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1430-768x692.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">La ligule est courte (\u00e9l\u00e9ment sans doute peu significatif):<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"702\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1505.jpg\" alt=\"\" class=\"wp-image-6510\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1505.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1505-300x248.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1505-768x634.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">La <strong>feuille inf\u00e9rieure est pli\u00e9e<\/strong>. La feuille peut souvent pr\u00e9senter <strong>sur le bord<\/strong> <strong>des poils raides<\/strong> plus ou moins irr\u00e9guliers mais<strong> plut\u00f4t r\u00e9guliers et en tous cas assez espac\u00e9s<\/strong> (en raison d&rsquo;une \u00ab\u00a0rouille\u00a0\u00bb ou sans doute d&rsquo;une fusariose ayant entra\u00een\u00e9 un dess\u00e9chement, les photos de la pilosit\u00e9 sont faites plut\u00f4t au niveau des innovations st\u00e9riles, lesquelles \u00e9taient moins touch\u00e9es):<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-1024x683.jpg\" alt=\"\" class=\"wp-image-6511\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-1024x683.jpg 1024w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-768x512.jpg 768w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-1536x1024.jpg 1536w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-2048x1365.jpg 2048w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1510-850x567.jpg 850w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"644\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/cilsIMG_1510.jpg\" alt=\"Bromus erectus subsp. erectus: cils sur les bords des limbes\" class=\"wp-image-6854\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/cilsIMG_1510.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/cilsIMG_1510-300x227.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/cilsIMG_1510-768x582.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les gaines basales sont donn\u00e9es comme membraneuses, rapidement marcescentes. Un peu dess\u00e9ch\u00e9es peut-\u00eatre ici:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"849\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/gainebasaleIMG_1509.jpg\" alt=\"\" class=\"wp-image-6855\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/gainebasaleIMG_1509.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/gainebasaleIMG_1509-300x300.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/gainebasaleIMG_1509-150x150.jpg 150w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2023\/06\/gainebasaleIMG_1509-768x767.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les fleurs m\u00e2les, les stigmates sont assez grands. Ils pr\u00e9sentent apparemment une taille d&rsquo;environ + ou &#8211; 2 \u00e0 3 ou 4 mm.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1594.jpg\" alt=\"\" class=\"wp-image-6512\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1594.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1594-300x300.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1594-150x150.jpg 150w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/05\/IMG_1594-768x768.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Risque de confusions: <\/strong><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">-&gt; A distinguer de Bromus riparius (les cils des bords du limbe sont diff\u00e9rents) et notamment de B. Pannonicus (en observant le plateau de tallage: taille du rhizome, nombre de noeuds). Bromus Pannonicus semble vivre \u00e0 des altitudes de 1000 \u00e0 1200 m\u00e8tres, et B. riparius, orientale, est donn\u00e9e de l&rsquo;Est, du Nord, des Alpes et Corbi\u00e8res. Bromus pannonicus fait syst\u00e9matiquement des stolons (ses feuilles peuvent \u00e9galement parfois \u00eatre cili\u00e9es \u00e0 la base). Bromus erectus peut rarement \u00e9mettre des stolons, son rhizome est normalement quasiment nul.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Des sous esp\u00e8ces sont cit\u00e9es.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Bromopsis erecta subsp. longiflorus (=Bromus erectus subsp. longiflorus), en principe absente ou rarement pr\u00e9sente dans l&rsquo;hexagone pr\u00e9sente des \u00e9pillets plus grands et plus multiflores, ainsi que la sous esp\u00e8ce transylvanica (=Bromus erectus subsp. transylvanica). Si l&rsquo;on admet dans le complexe assez d\u00e9licat de Bromopsis erecta ces diff\u00e9rentes sous-esp\u00e8ces, la plante pr\u00e9sent\u00e9e ici est B. erecta subsp. erecta.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>R\u00e9capitule:<\/strong><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">A retenir: le rapport de longueur des arr\u00eates vis \u00e0 vis des \u00e9pillets. La raideur de la plante. Sa touffe tr\u00e8s resserr\u00e9e (ce brome ne lance pas ou tr\u00e8s rarement des rhizomes). Les formes des feuilles sont diff\u00e9rentes: plates en haut de la tige, et pli\u00e9es en bas. Au moins \u00e0 la base des feuilles, les bords pr\u00e9sentent des poils longs, plut\u00f4t droits et espac\u00e9s. Au nord de la France, surtout en plaine (sic) &#8230; Exclure Bromopsis pannonica.<\/p>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\"><strong>Taxonomie<\/strong><\/h4>\n\n\n\n<p class=\"has-medium-font-size\">Tout le genre Bromus appara\u00eet monophyl\u00e9tique. Et distinct du genre soeur Triticum. La section pnigma \u00e0 laquelle appartient le sous genre Bromopsis semble interpr\u00e9t\u00e9e comme paraphyl\u00e9tique au sein du genre Bromus. Pr\u00e9sentant 2 groupes distincts, dont 1 europ\u00e9en (homg\u00e8ne). <\/p>\n\n\n\n<p class=\"has-medium-font-size\">L&rsquo;usage \u00e0 l&rsquo;international semble privil\u00e9gier le genre Bromus plut\u00f4t que le genre Bromopsis:<\/p>\n\n\n\n<p class=\"has-small-font-size\"><a href=\"https:\/\/lecompagnonrouge.fr\/?s=poales\">Poales<\/a>><a href=\"https:\/\/lecompagnonrouge.fr\/?s=poaceae\">Poaceae<\/a>><a href=\"https:\/\/lecompagnonrouge.fr\/?s=groupe+des+bromes+au+sens+large\">Groupe des Bromes au sens large<\/a>: panicule \u00e9tal\u00e9e, parfois contract\u00e9e avec au moins un rameau un peu long> \u00e9pillets souvent denses et en tous cas grands et termin\u00e9es par une arr\u00eate> > <a href=\"https:\/\/lecompagnonrouge.fr\/?s=bromopsis\">Bromopsis<\/a> erecta<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Ecologie de Bromopsis erecta:<\/strong><\/h4>\n\n\n\n<p class=\"has-medium-font-size\">La plante est x\u00e9rophile* et m\u00e9sophile*, sur des sols \u00e0 trophie* plut\u00f4t l\u00e9g\u00e8re, et basique*. Il y a sans doute un caract\u00e8re indicateur comme neutro calcicole, m\u00e9so x\u00e9rophile \u00e0 x\u00e9rophile.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Pelouses m\u00e9sophiles, m\u00e9sox\u00e9rophiles, prairies s\u00e8ches, bords de chemin.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Pelouses basophiles m\u00e9dio-europ\u00e9ennes et nevado-illyriennes. Festuco valesiacae &#8211; Bromopsidetea erectae Braun-Blanquet &amp; T\u00fcxen 1943 em. Royer 1987*<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Se rencontre \u00e9galement comme prairiale sur des prairies de fauches m\u00e9sophiles sur substrat calcaire, notamment du <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=3348\/#Trifolio-montani-Arrrhenatherenion\"><em>Trifolio montani<\/em>-Arrhenatherenion <em>elatioris<\/em><\/a>, ainsi que de l&rsquo;<em><a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=3348\/#Alchemillo-xanthochlorae-Cynosurenion\">Alchemillo xanthochlorae-Cynosurenion cristati<\/a><\/em>, et du <em><a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=3348\/#Lino-angustifolii-Oenanthenion-pimpinelloidis\">Lino angustifolii-Oenanthenion pimpinelloidis<\/a><\/em><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Dans l\u2019ensemble, les poaceae provoqueraient des pollinoses. Les poaceae forment un groupe qui semble particuli\u00e8rement complexe en raison de la taille de ce groupe pour les allergologues. Bromopsis erecta: pollen allergisant?<\/p>\n\n\n\n<p>Dates d&rsquo;observations: 18 et 26 mai 2024; 3 juin 2023; 2022<\/p>\n\n\n\n<p>Lieu(x) o\u00f9 la plante est photographi\u00e9e: Montreuil (parc des Beaumonts, pelouse \u00e9corch\u00e9e au niveau de la marre perch\u00e9e):<\/p>\n\n\n\t\t<div\n            id=\"wpmapblock_1bc2889a\"\n            data-settings='{&quot;map_marker&quot;:[{&quot;lat&quot;:&quot;48.858231707701&quot;,&quot;lng&quot;:&quot;2.4540442228317&quot;,&quot;title&quot;:&quot;Bromopsis erecta&quot;,&quot;content&quot;:&quot;Altitude: 114 m.&quot;,&quot;iconType&quot;:&quot;default&quot;,&quot;customIconUrl&quot;:&quot;&quot;,&quot;customIconWidth&quot;:&quot;25&quot;,&quot;customIconHeight&quot;:&quot;40&quot;},{&quot;lat&quot;:&quot;48.858161120019&quot;,&quot;lng&quot;:&quot;2.4534165859222&quot;,&quot;title&quot;:&quot;Bromopsis erecta&quot;,&quot;content&quot;:&quot;En 2024&quot;,&quot;iconType&quot;:&quot;default&quot;,&quot;customIconUrl&quot;:&quot;&quot;,&quot;customIconWidth&quot;:&quot;25&quot;,&quot;customIconHeight&quot;:&quot;40&quot;}],&quot;map_zoom&quot;:&quot;18&quot;,&quot;scroll_wheel_zoom&quot;:&quot;1&quot;,&quot;map_type&quot;:&quot;OSM&quot;,&quot;center_index&quot;:0}'\n            class=\"wpmapblockrender\"\n            style=\"\n\t\t\twidth: 100%;\n\t\t\theight: 500px;\n\t\t\"\n            >\n        <\/div>\n        \n\n\n<h4 class=\"wp-block-heading\">* <strong>Vocabulo:<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"609\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/07\/amsolo.jpg\" alt=\"\" class=\"wp-image-6949\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/07\/amsolo.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/07\/amsolo-300x215.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2024\/07\/amsolo-768x550.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00e9pillets: partie \u00e9l\u00e9mentaire d&rsquo;une grappe ou d&rsquo;un \u00e9pi, form\u00e9s de parties st\u00e9riles comme lemmes et glumes, ainsi que de la fleur (pas toujours la partie la plus visible en g\u00e9n\u00e9ral sur les poac\u00e9es)<\/li>\n\n\n\n<li>Lemme: enveloppe externe de l&rsquo;\u00e9pillet.<\/li>\n\n\n\n<li>Glume: les glumes sont sous-jacentes aux lemmes. Ce sont des bract\u00e9es.<\/li>\n\n\n\n<li>Bract\u00e9es: organes de la fleur rappelant parfois une feuille. Les bract\u00e9es sont situ\u00e9es sous la fleur: au niveau du p\u00e9doncule ou du p\u00e9dicelle (tige de la fleur).<\/li>\n\n\n\n<li>Arr\u00eate: longue pointe terminale. Ici pointe terminale terminant la lemme.<\/li>\n\n\n\n<li>P\u00e9doncule: tige de la fleur<\/li>\n\n\n\n<li>P\u00e9dicelle: dans une inflorescence plus complexe telle une grappe (c&rsquo;est le cas ici), plus petite tige de la fleur. La grande tige de l&rsquo;inflorescence prend alors le nom de rachis. Noter pour ce groupe de plante: la tige interne aux \u00e9pillets prend le noms de rachilet chez les poaceae. On n&rsquo;utilise pas le terme de p\u00e9dicelle dans ce groupe de plantes. La tige soutenant l&rsquo;\u00e9pillet (partie sous celui ci) prend le nom de p\u00e9doncule. <\/li>\n\n\n\n<li>X\u00e9rophile: aimant les situations s\u00e8ches<\/li>\n\n\n\n<li>M\u00e9sophile: aimant les situations d&rsquo;humidit\u00e9 moyenne.<\/li>\n\n\n\n<li>Basique: mesure de potentiel Hydrog\u00e8ne. Basique s&rsquo;oppose \u00e0 acide. Le pH du citron est acide. Celui du bicarbonate de soude (ou de la levure \u00e0 p\u00e2tisserie) est basique. Le neutre est mesur\u00e9 avec le chiffre 7. <\/li>\n\n\n\n<li>Pelouse: formation herbeuse naturelle basse. S&rsquo;oppose \u00e0 prairie qui d\u00e9signe des formations d&rsquo;herbes hautes.<\/li>\n\n\n\n<li>\u00ab\u00a0Festuco valesiacae &#8211; Bromopsidetea erectae\u00a0\u00bb: ces noms \u00e9tranges d\u00e9signent chacune des formations naturelles. Ces formations naturelles se reconnaissent parce qu&rsquo;elles regroupent de mani\u00e8re distincte, et de mani\u00e8re diff\u00e9rentes les une des autres plusieurs esp\u00e8ces de plantes.<\/li>\n\n\n\n<li>le Xanthorion pariatinea repr\u00e9sente une communaut\u00e9 de lichens en lien avec les taux d&rsquo;azote d\u00e9grad\u00e9 dans l&rsquo;air. Il est tr\u00e8s pr\u00e9sent en ville du fait de l&rsquo;enrichissement de l&rsquo;air en azote par les v\u00e9hicules \u00e0 moteur thermique. Cet azote est assimilable par les plantes. Il pleut donc toujours un peu d&rsquo;azote en ville. Peut-\u00eatre m\u00eame la ros\u00e9e peut aider \u00e0 la p\u00e9n\u00e9tration de cet azote dans le sol? Certains lichens de cette communaut\u00e9 sont par ailleurs tol\u00e9rants aux poussi\u00e8res, et certains m\u00eame \u00e0 la pollut!on au souffre.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>[Bromopsis erecta = Bromus erectus] Ce brome se remarque: Chez Bromopsis erecta, le rameau le plus long de la grappe est de taille mod\u00e9r\u00e9e (donn\u00e9 comme inf\u00e9rieur \u00e0 8 cm); les \u00e9pillets ne pendent pas \u00e0 l&rsquo;\u00e9tat adulte. La grappe n&rsquo;est pas retombante. Ce brome pr\u00e9sente des \u00e9pillets* dress\u00e9s \u00e0 lemmes* ayant des arr\u00eates* nettement&#8230;<\/p>\n","protected":false},"author":1,"featured_media":4153,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[768,306],"tags":[767],"class_list":["post-4152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bromopsis-erecta","category-poaceae","tag-brome-erige"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bromopsis erecta subsp. erecta. 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