Comparaison

Photos

Myriophyllum verticillatum

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