Comparaison

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Hydrocharis morsus-ranae

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Critères
Critère
Hydrocharis des grenouilles
Hydrocharis morsus-ranae
Période floraison ou sporulation
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Rareté Extrêmement rare (RRR)
Hauteur mini-maxi 15 - 50 cm
Bord des limbes Echancrures < 20% du limbe
Entier à marge lisse ou scabre
Couleur dominante des pièces pétaloides Blanche
Dimension de la fleur en mm 1 à 2 cm
15
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 < 1
Réniforme
Fréquence Extrêmement rare (RRR)
Habitat Lac, étang, rivière
Hauteur maxi de la plante en cm 31 à 60 cm
50
Hauteur mini de la plante en cm 15
Nombre d'étamines 8 ou 9
>10
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
Flottante
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 espacées sur des stolons flottants
Position des fleurs femelles Développées au-dessus de l'eau
Carte des observations
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