Comparaison

Photos

Vallisneria spiralis

© GA
Critères
Critère
Vallisnérie en spirale
Vallisneria spiralis
Période floraison ou sporulation
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Rareté Très rare (RR)
Hauteur mini-maxi 10 - 100 cm
Bord des limbes Echancrures < 20% du limbe
Entier à marge lisse ou scabre
Couleur dominante des pièces pétaloides Verdâtre
Dimension de la fleur en mm 2 à 5 cm
30
Disposition des feuilles Absence de tige aérienne
Feuilles en rosette entourant une hampe florale
Forme de la tige ou de la hampe florale Tige cylindrique
Lisse ou finement striée
Forme des feuilles indivises Rapport longueur / largeur > 10
Linéaire
Fréquence Très rare (RR)
Habitat Lac, étang, rivière
Hauteur maxi de la plante en cm 61 cm à 1 mètre
100
Hauteur mini de la plante en cm 10
Nombre d'étamines 2
Nombre de pétales ou de tépales 3
Port de la plante Flottante ou submergée
Position de l'ovaire Infère
Structure de la feuille Feuille non découpée
Simple, non découpée
Type biologique Plante aquatique
Submergée
Type d'inflorescence Fleur solitaire
Type de fleur Symétrie radiale
Pétales ou tépales libres
Type de fruit Charnu
À plusieurs noyaux (baie, pomme, poire)
Type de plante Plante herbacée à fleurs
Plante aquatique
Particularité du port de la plante Rosettes sur stolons enfouis dans la vase
Position des fleurs femelles Venant flotter à la surface
Carte des observations
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