{"id":10656,"date":"2025-07-27T10:28:24","date_gmt":"2025-07-27T08:28:24","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=10656"},"modified":"2025-08-04T17:23:04","modified_gmt":"2025-08-04T15:23:04","slug":"sagittaria-sagittifolia-sagittaire-a-feuilles-en-fleche","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=10656","title":{"rendered":"Sagittaria sagittifolia. Sagittaire \u00e0 feuilles en fl\u00e8che"},"content":{"rendered":"\n

Cette sagittaire est bien connue pour porter 3 types de feuilles: des feuilles en ruban tout en bas, des feuilles cord\u00e9es<\/a> en positions interm\u00e9diaires et des feuilles sagitt\u00e9es<\/a> tout en haut. Seulement quand je passe il n’est plus l’heure de toute cette vari\u00e9t\u00e9. J’\u00e9tais \u00e0 quelques centaines de kilom\u00e8tres au plus joli moment quand elle montre ses fleurs blanches dont les p\u00e9tales sont macul\u00e9s de pourpre.<\/p>\n\n\n\n

Alors comment faire pour la reconna\u00eetre?<\/p>\n\n\n\n

Les feuilles de cette sagittaire sont presque plus hast\u00e9es<\/a> que sagitt\u00e9es<\/a>, les oreillettes sont divergentes. Toutes parties de la feuille \u00e9tant \u00e9troites, et son p\u00e9tiole<\/a> triqu\u00eatre<\/a>.<\/p>\n\n\n\n

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

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

Origine, position taxonomique.<\/strong><\/p>\n\n\n\n

Plante Eurasiatique.<\/p>\n\n\n\n

On la trouve surtout au nord de l’Hexagone.<\/p>\n\n\n\n

Alismatales<\/a>>Alismataceae<\/a>>Sagittaria<\/a> sagittifolia<\/p>\n\n\n\n

Ecologie:<\/strong><\/p>\n\n\n\n

REGLEMENTATION, SIGNALEMENT<\/p>\n\n\n\n

En danger critique en Auvergne <\/mark>–crit\u00e8res: B2ab(i, ii, iii, iv)<\/mark>, Limousin <\/mark>–crit\u00e8re D1<\/mark>, Midi-Pyr\u00e9n\u00e9es <\/mark>–crit\u00e8res: B(1+2)ab(ii)<\/mark><\/p>\n\n\n\n

En danger en Provence-Alpes-C\u00f4te d’Azur<\/mark> –crit\u00e8res B2ab(iii)<\/p>\n\n\n\n

Vuln\u00e9rable en Aquitaine<\/mark> –crit\u00e8re D2, en Bretagne<\/mark> –crit\u00e8res B2ab(ii,iii,iv) + D2, en Corse<\/mark> –Crit\u00e8re D2, en Haute-Normandie<\/mark> –crit\u00e8re D2<\/p>\n\n\n\n

D\u00e9terminante Znieff en Picardie, Haute-Normandie, Centre Val-de-Loire, Bourgogne Franche-Comt\u00e9, Hauts de France, Poitou Charente, Nouvelle Aquitaine, Occitanie, Provence-Alpes-C\u00f4te d’Azur, Corse<\/mark><\/p>\n\n\n\n

AUTO-ECOLOGIE ET HABITAT<\/p>\n\n\n\n

Hydrog\u00e9ophyte des roseli\u00e8res, herbiers des eaux stagnantes, herbiers des eaux courantes.<\/p>\n\n\n\n

Pour les sagittaires \u00e0 feuilles en fl\u00e8ches en situations rh\u00e9ophiles<\/a>: herbiers aquatiques, vivaces, enracin\u00e9s, des eaux douces, courantes, peu profondes. Ranunculion fluitantis Neuh\u00e4usl 1959<\/p>\n\n\n\n

Sinon: parvoroseli\u00e8res m\u00e9dio-europ\u00e9ennes pionni\u00e8res. Oenanthion aquaticae Hejn\u00fd 1948 ex Neuh\u00e4usl 1959<\/p>\n\n\n\n

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

Photo: Seine, \u00cele-Saint-Denis. La g\u00e9ologie de ce parc (selon les couches harmonis\u00e9es du site BRGM infoterre) pr\u00e9sente du sable de Beauchamps et du sable du val d\u2019Oise (ou d\u2019Auvers), coup\u00e9e d\u2019une large langue de calcaire de Saint-Ouen. Ici, petit bras de la Seine: pour le sous-sol, des sables de Beauchamps, et des alluvions r\u00e9cents, tr\u00e8s certainement.<\/p>\n","protected":false},"excerpt":{"rendered":"

Cette sagittaire est bien connue pour porter 3 types de feuilles: des feuilles en ruban tout en bas, des feuilles cord\u00e9es en positions interm\u00e9diaires et des feuilles sagitt\u00e9es tout en haut. Seulement quand je passe il n’est plus l’heure de toute cette vari\u00e9t\u00e9. J’\u00e9tais \u00e0 quelques centaines de kilom\u00e8tres au plus joli moment quand elle…<\/p>\n","protected":false},"author":1,"featured_media":10657,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1218,1219],"tags":[1217],"class_list":["post-10656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alismataceae","category-sagittaria-sagittifolia","tag-sagittaire-a-feuilles-en-fleches"],"yoast_head":"\nSagittaria sagittifolia. 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