Comparaison

Photos

Symphyotrichum salignum
© GA
Critères
Critère
Aster à feuilles de Saule
Symphyotrichum salignum
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Très rare (RR)
Hauteur mini-maxi 60 - 160 cm
Couleur du capitule
Bicolore jaune au centre, blanc autour
Bicolore jaune au centre, bleu violacé autour
Disposition des capitules
Capitule solitaire
Position des épines
Plante ne possédant pas d'épine
Présence d'écailles sur le capitule
Réceptacle nu ou pubescent entre les fleurs
Présence de lait dans la plante
Absence de lait
Type d'akène
Pappus formé d'une aigrette sessile
Bractées externes de l'involucre
Atteignant la moitié de l'involucre et > 0,7 mm
Fleurs ligulées
> 1,5 mm de large, lilas pâle ou soutenu
Inflorescence
Nombreux capitules à ligules blanches à mauves
Pilosité de la plante
Parties végétatives presques glabres
Couleur dominante des pièces pétaloides
Blanche
Rose, lilas
Habitat
Mégaphorbiaie
Nombre de pétales ou de tépales
Capitule
Nombre d'étamines
5
Port de la plante
Tige dressée
Position de l'ovaire
Infère
Type de plante
Plante herbacée à fleurs
  • Autre plante herbacée à fleur
Type biologique
Plante terrestre
  • Plante vivace en surface
  • Plante vivace souterraine
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 2-5
  • Lancéolée
Bord des limbes
Echancrures < 20% du limbe
  • Denté
Type de fleur
Autre
  • Autre (Voir aide)
Dimension de la fleur en mm
1 à 2 cm
  • 15
Type d'inflorescence
Fleurs regroupées
  • Capitule
Type de fruit
Sec indéhiscent
  • Akène simple
Forme de la tige ou de la hampe florale
Tige cylindrique
  • Lisse ou finement striée
Composition du capitule
Fleurs en tube au centre et en languette autour
  • Les tubulées à 5 dents, les ligulées à 2 - 3 dents
Carte des observations
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