Comparaison

Photos

Myriophyllum verticillatum

© GA
Critères
Critère
Myriophylle à fleurs verticillées
Myriophyllum verticillatum
Période floraison ou sporulation
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Rareté Très rare (RR)
Hauteur mini-maxi 30 - 160 cm
Bord des limbes Echancrures >20% du limbe
Lobé ou découpé
Couleur dominante des pièces pétaloides Verdâtre
Rouge, pourpre
Dimension de la fleur en mm Moins de 1 cm
5
Disposition des feuilles Tige aérienne avec feuilles
Verticillées
Forme de la tige ou de la hampe florale Tige cylindrique
Lisse ou finement striée
Forme des feuilles indivises Feuilles découpées ou composées
Fréquence Très rare (RR)
Habitat Lac, étang, rivière
Hauteur maxi de la plante en cm 1 à 2 mètres
160
Hauteur mini de la plante en cm 30
Nombre d'étamines 8 ou 9
Nombre de pétales ou de tépales 4
Port de la plante Flottante ou submergée
Position de l'ovaire Infère
Structure de la feuille Feuille plus ou moins découpée
Pennée et plus profondément découpée
Type biologique Plante aquatique
Submergée
Type d'inflorescence Fleurs regroupées
En verticilles ou glomérules
Type de fleur Symétrie radiale
Pétales ou tépales libres
Type de fruit Sec indéhiscent
Akène simple
Type de plante Plante herbacée à fleurs
Plante aquatique
Détail du fruit 4 stigmates et 4 akènes en croix
Forme des feuilles Feuille à nombreux segments filiformes et entiers
Bractées des fleurs supérieures Bractées découpées
Détail de l'inflorescence Fleurs supérieures nettement verticillées
Carte des observations
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