Comparaison

Photos

Filago germanica
© GA
Critères
Critère
Immortelle d'Allemagne
Filago germanica
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Rare (R)
Hauteur mini-maxi 10 - 30 cm
Bord des limbes Echancrures < 20% du limbe
Entier à marge lisse ou scabre
Entier à marge ondulée
Couleur dominante des pièces pétaloides Jaune
Dimension de la fleur en mm Moins de 5 mm
4
Disposition des feuilles Tige aérienne avec feuilles
Alternes
Forme de la tige ou de la hampe florale Tige cylindrique
Lisse ou finement striée
Forme des feuilles indivises Rapport longueur / largeur 2-5
Lancéolée
Rapport longueur / largeur 5-10
Linéaire lancéolée
Fréquence Rare (R)
Habitat Terrain sec
Terrain vague, chemin
Hauteur maxi de la plante en cm 11 à 30 cm
30
Hauteur mini de la plante en cm 10
Nombre d'étamines 5
Nombre de pétales ou de tépales Capitule
Port de la plante Tige dressée
Position de l'ovaire Infère
Structure de la feuille Feuille non découpée
Simple, non découpée
Type biologique Plante terrestre
Plante annuelle
Type d'inflorescence Fleurs regroupées
Capitule
Type de fleur Symétrie radiale
Pétales ou tépales soudés
Symétrie bilatérale
Autre
Autre (Voir aide)
Type de fruit Sec indéhiscent
Akène avec appendices plumeux
Type de plante Plante herbacée à fleurs
Autre plante herbacée à fleur
Composition du capitule Fleurs en tube uniquement
Le tube se termine par 5 dents courtes
Couleur du capitule À une seule couleur
Disposition des capitules Glomérule de capitules
Position des épines Plante ne possédant pas d'épine
Présence d'écailles sur le capitule Fleur placée à l'aisselle d'une écaille
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
Aigrettes du fruit Absentes à la périphérie, présentes au centre
Couleur de l'arête des bractées Arête jaunâtre
Couleur du sommet des bractées de l'involucre Peu membraneux blanchâtre ou verdâtre arête exclue
Forme du capitule Capitule à angles peu marqués
Forme et pilosité des feuilles Feuilles entières couvertes de poils laineux
Nombre de fleurs hermaphrodites 2 à 4
Nombre de pétales sur les fleurs centrales 4 pétales
Organisation des semences dans le capitule Les périphériques enfermées, les centrales libres
Sommet des bractées médianes Bractées aigues, apiculées ou aristées au sommet
Séparation des sexes dans le capitule Capitule hermaphrodite
Carte des observations
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