{"id":11335,"date":"2025-12-28T09:08:49","date_gmt":"2025-12-28T08:08:49","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=11335"},"modified":"2026-01-01T19:48:13","modified_gmt":"2026-01-01T18:48:13","slug":"setaria-parviflora-setaire-a-petites-fleurs","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=11335","title":{"rendered":"Setaria parviflora. S\u00e9taire \u00e0 petites fleurs"},"content":{"rendered":"\n<p class=\"has-medium-font-size\">Elle ne s&rsquo;est pas laiss\u00e9e prendre si facilement. Photos de nuit. Sentiment d&rsquo;\u00eatre tout de m\u00eame un tout petit peu trop pr\u00e8s d&rsquo;un quartier o\u00f9 la photographie est s\u00e9v\u00e8rement contr\u00f4l\u00e9e. Ce n&rsquo;est pas franchement un corps de m\u00e9tier o\u00f9 il y a de l&rsquo;instabilit\u00e9. Quartier des cadors. Roulent en voitures. Vitres fum\u00e9es. Ouvertes une fois. Une fois, chacun ici a vu le visage de l&rsquo;un ou de l&rsquo;autre. Depuis tout ce temps. H\u00e9licos qui volent autour de la tour. La tour o\u00f9 se produisent des \u00e9changes. Inspecteur. Voiture. H\u00e9lico. Rien. Toujours des h\u00e9licos. D&rsquo;o\u00f9 \u00e9tait venue cette balle perdue? O\u00f9 ont-ils appris \u00e0 tirer? Qui leur a appris? <\/p>\n\n\n\n<p class=\"has-medium-font-size\">Aucune raison valable (sauf \u00e9reintement des riverains avec des vols co\u00fbteux) d&rsquo;autoriser des drogues dangereuses pour la sant\u00e9 (alcool et tabac) et d&rsquo;interdire des drogues peu dangereuses pour la sant\u00e9 (haschich). L&rsquo;interdiction a pour seul effet de maintenir une \u00e9conomie souterraine. Et la droite y semble accroch\u00e9e comme une patelle \u00e0 un rocher. On va finir par avoir des soup\u00e7ons.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Que des personnes travaillent dans l&rsquo;herboristerie, c&rsquo;est tr\u00e8s bien. Que leurs structures entrepreneuriales soient tr\u00e8s hi\u00e9rarchis\u00e9es, cela ne me regarde pas. Que de l&rsquo;argent n&rsquo;atteigne pas les \u00e9coles et les h\u00f4pitaux, cela peut me questionner. Que je doive faire attention quand je prends des photos, ce n&rsquo;est ni le seul ni le premier lieu au monde. Par contre les h\u00e9licopt\u00e8res c&rsquo;est trop.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Retards<\/strong><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">Cette s\u00e9taire je la croise depuis plusieurs ann\u00e9es. Je ne me rappelle pas tr\u00e8s bien, mais en 2022 ou 2023. Oui. Certainement. Cette s\u00e9taire \u00e9tait donn\u00e9e comme surtout localis\u00e9e en Corse en 2014. Elle semble avoir suivi le chemin thermique habituel (-&gt;Provence -&gt; fa\u00e7ade atlantique -&gt; grandes villes). Paris est tr\u00e8s chaud. Pas tant de surprise. Probablement \u00e0 consid\u00e9rer comme une \u00e9ventuelle indicatrice de r\u00e9chauffement climatique. Comme je commen\u00e7ais \u00e0 en avoir le sentiment, il s&rsquo;agit d&rsquo;une vivace. Comme indiqu\u00e9 je n&rsquo;ai pas pris toutes les photos n\u00e9cessaires.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>El\u00e9ments de description de Setaria parviflora<\/strong><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">Le <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#limbe\">limbe<\/a> de la feuille du bas est \u00e9troit (moins de 5 mm de large). Les limbes sont plats. Il y a de nombreuses innovations st\u00e9riles. Cette s\u00e9taire ressemble comme une seule goutte d&rsquo;eau \u00e0 la Setaria pumila. Cette derni\u00e8re, une <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#therophyte\">annuelle<\/a>, \u00e9tant cens\u00e9e se trouver +- partout sur le territoire (jusqu&rsquo;\u00e0 1200 m d&rsquo;altitude). Setaria pumila a des feuilles un peu plus larges en moyenne que Setaria parviflora. Les <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#soie\">soies<\/a> de Setaria pumila peuvent \u00eatre rousses \u00e0 leurs extr\u00e9mit\u00e9s. En principe rousses, au moins \u00e0 leurs extr\u00e9mit\u00e9s. Si soies blanches, penser \u00e0 Setaria parviflora.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Setaria pumila et Setaria parviflora se distinguent des autres s\u00e9taires car la <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#fleur,structure-(poaceae)\">lemme<\/a> fertile est rid\u00e9e transversalement:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"478\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/setariaparviflora1.jpg\" alt=\"Setaria parviflora: la lemme est rid\u00e9e longitudalement et transversalement.\" class=\"wp-image-11338\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/setariaparviflora1.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/setariaparviflora1-300x169.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/setariaparviflora1-768x432.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\">Setaria parviflora pr\u00e9sente une inflorescence un peu moins large que Setaria pumila (4,5 mm de large sans les soies contre 5 mm \u00e0 1 cm environ de large):<\/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\/2025\/12\/IMG_3135.jpg\" alt=\"Setaria parviflora: largeur maximale de l'\u00e9pi. mesure: on voit que dans la largeur la plus grande, cela atteint 4,5 mm.\" class=\"wp-image-11339\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3135.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3135-300x200.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3135-768x512.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\">Setaria parviflora pr\u00e9sente des <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#\u00e9pillet\">\u00e9pillets<\/a> plus courts, longs de 2 \u00e0 2,5 mm, contre 2,5 \u00e0 3 mm chez Setaria pumila:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"765\" src=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3136.jpg\" alt=\"Setaria parviflora: longueur de l'epillet. Mesure: on voit que l'\u00e9pillet a une longueur d'\u00e0 peine plus de 2 mm.\" class=\"wp-image-11337\" srcset=\"https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3136.jpg 850w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3136-300x270.jpg 300w, https:\/\/lecompagnonrouge.fr\/wp-content\/uploads\/2025\/12\/IMG_3136-768x691.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\">La floraison de cette s\u00e9taire est tr\u00e8s tardive. Souvenir de l&rsquo;avoir vu fleurir par temps doux pourtant. Nous sommes le 27 d\u00e9cembre lors de la photo (fin de floraison indiqu\u00e9e pour la Corse en 2014 dans Flora Gallica).<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Origine, poistion taxonomique:<\/strong><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">Setaria parviflora nous provient d&rsquo;Am\u00e9rique du nord.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les s\u00e9taires sont proches morphologiquement du genre Cenchrus (pour les esp\u00e8ces pr\u00e9sentes dans l&rsquo;Hexagone, en tous cas: plus raides, on est plus sur des ar\u00eates que sur des soies). Peut \u00e9galement \u00e9ventuellement \u00eatre confondu avec Polypogon.<\/p>\n\n\n\n<p class=\"has-small-font-size\"><a href=\"https:\/\/lecompagnonrouge.fr\/?s=poales\">Poales<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=poaceae\">Poaceae<\/a>&gt;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=pseudo-%C3%A9pi\">Groupe \u00e0 pseudo-\u00e9pi<\/a>\/ comprenant g\u00e9n\u00e9ralement des innovations st\u00e9riles&gt;&nbsp;<a href=\"https:\/\/lecompagnonrouge.fr\/?s=setaria\">Setaria<\/a>&nbsp;verticillata<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Statuts<\/strong><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">Les statuts actualis\u00e9s et consolid\u00e9s sont disponibles via l&rsquo;INPN. Les sites en d\u00e9pendant ont subis une attaque informatique. Cette s\u00e9taire est en expansion. Il semble que plusieurs travaux indiquent que le changement climatique constitue pour elle un facteur favorable aux d\u00e9pens des autres esp\u00e8ces. Plante sous surveillance en m\u00e9diterran\u00e9e.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Ecologie:<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Dans l\u2019ensemble, les gramin\u00e9es provoqueraient des pollinoses. Les poaceae forment un groupe qui semble particuli\u00e8rement complexe en raison de la taille de ce groupe pour les allergologues. Setaria parviflora : pollen allergisant?<\/p>\n\n\n\n<p class=\"has-medium-font-size\">HABITAT:<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Plante <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#psammophile\">psammophile<\/a> et thermophile de <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#friche\">friches<\/a> <a href=\"https:\/\/lecompagnonrouge.fr\/?page_id=8669#trophie\">eutrophes<\/a>.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">La communaut\u00e9 indiqu\u00e9e est celle d&rsquo;une friche vivace assez courante en ville:<br>friches vivaces m\u00e9sohydriques, m\u00e9dio-europ\u00e9ennes. Dauco carotae subsp. carotae &#8211; Melilotion albi G\u00f6rs 1966<\/p>\n\n\n\n<p>Je n&rsquo;ai malheureusement pas produit un d\u00e9compte. Elles se trouvent tout le long de ce mur. Sol avec l\u00e9g\u00e8re pente. Sable de construction en principe sous-jacent. Ce mur est \u00e9ventuellement rattachable \u00e0 la friche vivace (tr\u00e8s) anthropique et nitrophile de l&rsquo;Artemisietea vulgaris (non loin: <a href=\"https:\/\/lecompagnonrouge.fr\/?p=3452\">Malva sylvestris<\/a> et cirsium. friche plus riche en esp\u00e8ces en face, mais non pris le temps + grillages mais Cirsium, <a href=\"https:\/\/lecompagnonrouge.fr\/?p=652\">Daucus carota<\/a>). Ce rattachement pour la belle saison. Pour la p\u00e9riode o\u00f9 a \u00e9t\u00e9 prise la photo: Setaria parviflorae (monosp\u00e9cifique). Situ\u00e9e \u00e0 Bagnolet. Proche \u00e9changeur.<\/p>\n\n\n\t\t<div\n            id=\"wpmapblock_295522e8\"\n            data-settings='{&quot;map_marker&quot;:[{&quot;lat&quot;:&quot;48.863585493236&quot;,&quot;lng&quot;:&quot;2.4175608158112&quot;,&quot;title&quot;:&quot;Setaria parviflora&quot;,&quot;content&quot;:&quot;&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;15&quot;,&quot;scroll_wheel_zoom&quot;:false,&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<p>Alt text: carte avec un point indiquant o\u00f9 la photo a \u00e9t\u00e9 prise. Proche de Gallieni<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Elle ne s&rsquo;est pas laiss\u00e9e prendre si facilement. Photos de nuit. Sentiment d&rsquo;\u00eatre tout de m\u00eame un tout petit peu trop pr\u00e8s d&rsquo;un quartier o\u00f9 la photographie est s\u00e9v\u00e8rement contr\u00f4l\u00e9e. Ce n&rsquo;est pas franchement un corps de m\u00e9tier o\u00f9 il y a de l&rsquo;instabilit\u00e9. Quartier des cadors. Roulent en voitures. Vitres fum\u00e9es. Ouvertes une fois&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":11336,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[306,1238],"tags":[1237],"class_list":["post-11335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-poaceae","category-setaria-parviflora","tag-setaire-a-petites-fleurs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Setaria parviflora. 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