{"id":6532,"date":"2024-06-02T17:57:54","date_gmt":"2024-06-02T15:57:54","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=6532"},"modified":"2025-10-12T15:03:01","modified_gmt":"2025-10-12T13:03:01","slug":"bromus-rubens-brome-rougeatre","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=6532","title":{"rendered":"Anisantha rubens. Brome rouge\u00e2tre."},"content":{"rendered":"\n

[Anisantha rubens = Bromus rubens]<\/p>\n\n\n\n

Anisantha rubens, ici en compagnie d’une larve de coccinelle d’Harmonia axyridis, est un petit brome thermophile \u00e0 inflorescence tr\u00e8s dense, tr\u00e8s resserr\u00e9e, tr\u00e8s \u00e9rig\u00e9e vers le haut, \u00e0 rameaux courts, et rougissant \u00e0 maturit\u00e9.
Et pouvant pr\u00e9senter des arr\u00eates plus ou moins arqu\u00e9es vers l’ext\u00e9rieur. Mais de mani\u00e8re mod\u00e9r\u00e9e. Ici elles sont tourn\u00e9es vers l’ext\u00e9rieur mais droite.
<\/p>\n\n\n\n

Se distingue le plus g\u00e9n\u00e9ralement parce que son inflorescence se pr\u00e9sente en pinceau dense. Ici allure plus proche du Brome de Madrid.<\/p>\n\n\n\n

Se distingue parce que le haut de la tige et\/ou les rameaux de l’inflorescence sont pileux, et non scabre.<\/p>\n\n\n

\n
\"Anisantha<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

Les lemmes de ce brome sont inf\u00e9rieures \u00e0 15 mm.<\/p>\n\n\n\n

La ligule est un \u00e9l\u00e9ment qui distingue peu cette plante, a priori:<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

Taxonomie<\/strong><\/h3>\n\n\n\n

Tout le genre Bromus appara\u00eet g\u00e9n\u00e9ralement comme monophyl\u00e9tique. Et distinct du genre soeur Triticum. Cependant que nombre d’esp\u00e8ces sont paraphyl\u00e9tiques. L\u2019usage international semble plut\u00f4t pr\u00e9f\u00e9rer Bromus \u2026<\/p>\n\n\n\n

Poales<\/a>>Poaceae<\/a>>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>\u00a0Anisantha<\/a>\u00a0rubens<\/p>\n\n\n\n

Ecologie d’Anisantha rubens<\/strong><\/h3>\n\n\n\n

Plante tr\u00e8s anecdotique \u00e0 Paris.
Les stations historiques se trouvent sur la Seine (bien que pr\u00e9c\u00e9demment fin XIX comme flore obsidionale du c\u00f4t\u00e9 de Courbevoie, Clamart \u2026 Puis dans le potager du roi \u00e0 Versailles de mani\u00e8re fugace). La premi\u00e8re station concerne la voie Pompidou. La seconde en voie sur Berge entre Bercy et Austerlitz. Ici, finalement comme une extension de la seconde station. Rive gauche. Et rive droite sur fond de mur clair.<\/p>\n\n\n\n

<\/p>\n\n\n\t\t\n <\/div>\n \n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

Egalement vu en 2025 au cimeti\u00e8re parisien de Bagneux.<\/p>\n\n\n\n

La plante est thermophile, franchement m\u00e9diterran\u00e9enne et \u00e9galement pr\u00e9sente en Gironde. Se trouve plut\u00f4t sur sols sableux. A regarder \u00e9voluer en fonction des gradients de chaleurs climatique sugg\u00e8re Jauzein.<\/p>\n\n\n\n

Friches annuelles, m\u00e9so-eutrophiles \u00e0 eutrophiles, m\u00e9diterran\u00e9o-atlantiques, vernales. Brometalia rubenti – tectorum Rivas-Mart\u00ednez & Izco 1977<\/p>\n\n\n\n

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. Anisantha rubens : pollen allergisant?<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

[Anisantha rubens = Bromus rubens] Anisantha rubens, ici en compagnie d’une larve de coccinelle d’Harmonia axyridis, est un petit brome thermophile \u00e0 inflorescence tr\u00e8s dense, tr\u00e8s resserr\u00e9e, tr\u00e8s \u00e9rig\u00e9e vers le haut, \u00e0 rameaux courts, et rougissant \u00e0 maturit\u00e9.Et pouvant pr\u00e9senter des arr\u00eates plus ou moins arqu\u00e9es vers l’ext\u00e9rieur. Mais de mani\u00e8re mod\u00e9r\u00e9e. Ici elles…<\/p>\n","protected":false},"author":1,"featured_media":6533,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,306],"tags":[992],"class_list":["post-6532","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anisantha-rubens","category-poaceae","tag-brome-rougeatre"],"yoast_head":"\nAnisantha rubens. 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