Comparaison

Photos

Filago germanica

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
Type d'inflorescence	Fleurs regroupées Capitule
Couleur dominante des pièces pétaloides	Jaune
Nombre de pétales ou de tépales	Capitule
Port de la plante	Tige dressée
Habitat	Terrain sec Terrain vague, chemin
Nombre d'étamines	5
Position de l'ovaire	Infère
Disposition des capitules	Glomérule de capitules
Position des épines	Plante ne possédant pas d'épine
Couleur du capitule	À une seule couleur
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
Séparation des sexes dans le capitule	Capitule hermaphrodite
Sommet des bractées médianes	Bractées aigues, apiculées ou aristées au sommet
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 2-5 Lancéolée Rapport longueur / largeur 5-10 Linéaire lancéolée
Bord des limbes	Echancrures < 20% du limbe Entier à marge lisse ou scabre Entier à marge ondulée
Type de fleur	Symétrie radiale Pétales ou tépales soudés Symétrie bilatérale Pétales ou tépales soudés Autre Autre (Voir aide)
Dimension de la fleur en mm	Moins de 5 mm 4
Type de fruit	Sec indéhiscent Akène avec appendices plumeux
Forme de la tige ou de la hampe florale	Tige cylindrique Lisse ou finement striée
Composition du capitule	Fleurs en tube uniquement Le tube se termine par 5 dents courtes

Carte des observations

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