Comparaison

Photos

Callitriche obtusangula

© GA
Critères
Critère
Callitriche à angles obtus
Callitriche obtusangula
Période floraison ou sporulation
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  • A
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  • A
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  • O
  • N
  • D
Rareté Rare (R)
Hauteur mini-maxi 10 - 60 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 Plante à fleurs nues
Pièces florales absentes ou transformées en soies
Disposition des feuilles Tige aérienne avec feuilles
Opposées
Forme de la tige ou de la hampe florale Tige cylindrique
Lisse ou finement striée
Forme des feuilles indivises Rapport longueur / largeur 1-2
Ovale, oblongue ou obovale
Rapport longueur / largeur 2-5
Lancéolée
Rapport longueur / largeur > 10
Linéaire
Fréquence Rare (R)
Habitat Lac, étang, rivière
Hauteur maxi de la plante en cm 31 à 60 cm
60
Hauteur mini de la plante en cm 10
Nombre d'étamines 1
Nombre de pétales ou de tépales Aucun pétale
Port de la plante Flottante ou submergée
Position de l'ovaire Supère
Structure de la feuille Feuille non découpée
Simple, non découpée
Type biologique Plante aquatique
Submergée
Flottante
Type d'inflorescence Fleur solitaire
Type de fleur Autre
Autre (Voir aide)
Type de fruit Sec indéhiscent
Akène simple
Type de plante Plante herbacée à fleurs
Plante aquatique
Nombre de sépales Absence de sépales
Type de fruit Tétrakène
Dos des akènes Aile absente
Forme des feuilles dans l'eau Deux types de feuilles
Forme du style Styles allongés et dressés
Longueur du pédicelle des fruits Pédicelle inférieur à la taille du fruit
Présence de bractéoles Présence de bractéoles de part et d'autre du fruit
Carte des observations
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