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Class\u00e9e esp\u00e8ce exotique envahissante pour l\u2019Union europ\u00e9enne, le myriophylle h\u00e9t\u00e9rophylle a \u00e9t\u00e9 signal\u00e9 pour la premi\u00e8re fois en Bretagne en 2025. Il \u00e9tait situ\u00e9 dans la Vilaine, entre Bruz et Guichen\u00a0(Ille-et-Vilaine).<\/p>\n
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Le myriophylle h\u00e9t\u00e9rophylle est identifiable par la pr\u00e9sence de stigmates rouges \u00e0 la base des feuilles qui rendent ses \u00e9pis \u00e9merg\u00e9s reconnaissables. | LESLIE J. MEHRHOFF\/CC BY 3.0<\/p>\n
fermer<\/p>\n
Myriophylle h\u00e9t\u00e9rophylle. Ce nom ne vous dit rien\u00a0? C\u2019est normal. En revanche, peut-\u00eatre l\u2019avez-vous d\u00e9j\u00e0 crois\u00e9e sans vous en rendre compte sur les chemins de halage qui longent la Vilaine. C\u2019est ici que cette esp\u00e8ce aquatique prolif\u00e8re au point d\u2019inqui\u00e9ter les autorit\u00e9s locales.<\/p>\n
En f\u00e9vrier\u00a02026, la Direction r\u00e9gionale de l\u2019environnement, de l\u2019am\u00e9nagement et du logement\u00a0(DREAL) Bretagne, en lien avec le Conservatoire botanique national\u00a0(CBN) de Brest\u00a0et les collectivit\u00e9s, ont annonc\u00e9…<\/p>\n
D\u00e9j\u00e0 abonn\u00e9 ? <\/strong>Connectez-vous<\/a><\/p>\n
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