Comparaison

Sélection

Myriophyllum verticillatum

Myriophylle à fleurs verticillées

Photos

Photos épinglées

Myriophyllum verticillatum
Individu
Critères
Critère 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
Nombre de pétales ou de tépales
4
Nombre d'étamines
8 ou 9
Habitat
Lac, étang, rivière
Forme des feuilles
Feuille à nombreux segments filiformes et entiers
Détail du fruit
4 stigmates et 4 akènes en croix
Détail de l'inflorescence
Fleurs supérieures nettement verticillées
Bractées des fleurs supérieures
Bractées découpées
Type de plante
Plante herbacée à fleurs
  • Plante aquatique
Type biologique
Plante aquatique
  • Submergée
Disposition des feuilles
Tige aérienne avec feuilles
  • Verticillées
Bord des limbes
Echancrures >20% du limbe
  • Lobé ou découpé
Type d'inflorescence
Fleurs regroupées
  • En verticilles ou glomérules
Forme de la tige ou de la hampe florale
Tige cylindrique
  • Lisse ou finement striée
Couleur dominante des pièces pétaloides
Rouge, pourpre
Verdâtre
Position de l'ovaire
Infère
Port de la plante
Flottante ou submergée
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
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
Phénologie
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Carte des observations
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