Comparaison

Photos

Alyssum alyssoides

© GA
Critères
Critère
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Très rare (RR)
Hauteur mini-maxi 5 - 20 cm
Couleur dominante des pièces pétaloides
Jaunâtre
Blanche
Nombre de pétales ou de tépales
4
Port de la plante
Tige dressée
Habitat
Prairie, pelouse
Terrain sec
Nombre d'étamines
6
Position de l'ovaire
Supère
Longueur du fruit
< 5 mm
Insertion des feuilles sur la tige
Feuilles non embrassantes
Pilosité des feuilles
Présence de poils étoilés ou ramifiés
Pilosité des fruits
Silicule arrondie, couverte de poils étoilés
Taille du style
Style inférieur à 1 mm
Type de plante
Plante herbacée à fleurs
  • Autre plante herbacée à fleur
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 1-2
  • Ovale, oblongue ou obovale
Rapport longueur / largeur 2-5
  • Lancéolée
  • Spatulée
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 5 mm
  • 4
Type d'inflorescence
Fleurs regroupées
  • Grappe ou grappe composée
Type de fruit
Sec déhiscent
  • À 2 valves avec une cloison centrale (silique)
Forme de la tige ou de la hampe florale
Tige cylindrique
  • Lisse ou finement striée
Type de fruit
Silicule
  • Aplati parallèlement à la cloison
Carte des observations
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