Comparaison

Photos

Juncus tenageia
© ES
Critères
Critère
Jonc des vasières
Juncus tenageia
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Très rare (RR)
Hauteur mini-maxi 3 - 15 cm
Couleur dominante des pièces pétaloides
Brunâtre
Verdâtre
Habitat
Zone humide, tourbière, rives
Prairie, pelouse
Nombre de pétales ou de tépales
6
Nombre d'étamines
6
Port de la plante
Tige dressée
Position de l'ovaire
Supère
Caractéristique de la fleur
Formée de 6 tépales scarieux (rigides) brunâtres
Nombre de graines par fruit
Nombreuses graines minuscules
Pilosité des feuilles
Glabres
Type de feuilles sur les tiges fleuries
Feuilles à limbe plan < 2,5 mm de large
Forme des tépales
Internes obtus, les externes aigus
Nombre de bractéoles à la base de la fleur
Involucre de 2 à 3 bractéoles
Port de la plante
Tige ou hampe droite à inflorescence fasciculée
Tige droite à inflorescence divariquée
Sommet de la capsule
Arrondi
Type de feuilles
Planes et non cloisonnées
Type d'inflorescence
Panicule de fleurs souvent isolées
Type de plante
Plante herbacée à fleurs
  • À feuilles linéaires et longues gaines
Type biologique
Plante terrestre
  • Plante annuelle
Disposition des feuilles
Tige aérienne avec feuilles
  • Alternes
Structure de la feuille
Feuille non découpée
  • Simple, non découpée
Forme des feuilles indivises
Rapport longueur / largeur > 10
  • Linéaire
Bord des limbes
Echancrures < 20% du limbe
  • Entier à marge lisse ou scabre
Type de fleur
Symétrie radiale
  • Pétales ou tépales libres
Dimension de la fleur en mm
Moins de 1 cm
  • 5
Type d'inflorescence
Fleurs regroupées
  • Grappe ou grappe composée
  • Cyme ou cyme composée
Type de fruit
Sec déhiscent
  • À autre mode d'ouverture (capsule)
Forme de la tige ou de la hampe florale
Tige cylindrique
  • Lisse ou finement striée
Aspect des hampes (ressemblant à des tiges)
Tige feuillée
  • Feuilles bien développées avec gaine et limbe
Carte des observations
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