Comparaison

Photos

Reynoutria sachalinensis
© GA
Critères
Critère
Renouée de Sakhaline
Reynoutria sachalinensis
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Non renseignée
Hauteur mini-maxi 80 - 350 cm
Couleur dominante des pièces pétaloides
Verdâtre
Blanche
Nombre de pétales ou de tépales
5
Port de la plante
Arbuste
Habitat
Terrain vague, chemin
Nombre d'étamines
8 ou 9
Position de l'ovaire
Supère
Aspect de la fleur
5 pièces, 3 grandes externes et 2 petites internes
Aspect de la tige
Tige ressemblant à du bambou (diamètre 1 à 3 cm)
Détail de la feuille
Feuilles de 15 à 30 cm à base en coeur
Insertion des feuilles
Présence d'une enveloppe membraneuse (ochréa)
Caractère particulier
Présence de stipules ou d'ochréas
Détail de l'inflorescence
Nombreuses inflorescences axillaires
Pilosité de la face inférieure des feuilles
Face inférieure velue sur les nervures
Taille des ochréas
Ochréas nettement plus allongés > 2 cm
Aspect des semences
Semence à 3 ailes blanches développées
Type de plante
Plante herbacée à fleurs
  • Autre plante herbacée à fleur
Type biologique
Plante terrestre
  • Plante vivace souterraine
  • Plante vivace en surface
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 1-2
  • Ovale, oblongue ou obovale
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
  • 8
Type d'inflorescence
Fleurs regroupées
  • Grappe ou grappe composée
Type de fruit
Sec indéhiscent
  • Akène simple
Forme de la tige ou de la hampe florale
Tige cylindrique
  • Nettement sillonnée
Carte des observations
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