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Sélection

Potamogeton coloratus

Potamot des tourbières alcalines

Photos

Photos épinglées

Potamogeton coloratus
Individu
3
Critères
Critère Potamogeton coloratus
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Extrêmement rare (RRR)
Hauteur mini-maxi 20 - 60 cm
Nombre de pétales ou de tépales
4
Nombre d'étamines
4
Habitat
Lac, étang, rivière
Soudure de la stipule
Stipule ouverte
Structure des feuilles inférieures
Alternes, sans gaines avec une stipule
Type de fruit
2 à 4 akènes à bec très court ou nul
Dimorphisme des feuilles
Les inférieures lancéolées, les supérieures larges
Nervation des feuilles
Plus de 13 nervures parallèles
Particularité de l'akène
Akène sans bosse ventrale
Pédoncule de l'inflorescence
Long, supérieur à 2,5 cm et peu renflé
Opacité des feuilles
Des submergées translucides et pétiolées
Taille de l'akène
< 2,4 mm
Type de plante
Plante herbacée à fleurs
  • Plante aquatique
Type biologique
Plante aquatique
  • Flottante
  • Submergée
Disposition des feuilles
Tige aérienne avec feuilles
  • Alternes
Forme des feuilles indivises
Rapport longueur / largeur 1-2
  • Ovale, oblongue ou obovale
Bord des limbes
Echancrures < 20% du limbe
  • Entier à marge lisse ou scabre
Type d'inflorescence
Fleurs regroupées
  • Epi ou épi composé
Type de fruit
Charnu
  • À un seul noyau (drupe)
Sec indéhiscent
  • Akène simple
Forme de la tige ou de la hampe florale
Tige cylindrique
  • Lisse ou finement striée
Couleur dominante des pièces pétaloides
Verdâtre
Brunâtre
Position de l'ovaire
Supère
Port de la plante
Flottante ou submergée
Caractère particulier
Présence de stipules ou d'ochréas
Structure de la feuille
Feuille non découpée
  • Simple, non découpée
Type de fleur
Symétrie radiale
  • Pétales ou tépales libres
Dimension de la fleur en mm
Moins de 5 mm
  • 2
Phénologie
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Carte des observations
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