Comparaison

Photos

Logfia minima

Critères

Critère	Cotonnière naine Logfia minima
Période floraison ou sporulation	J F M A M J J A S O N D
Rareté	Rare (R)
Hauteur mini-maxi	15 - 30 cm
Bord des limbes	Echancrures < 20% du limbe Entier à marge lisse ou scabre
Couleur dominante des pièces pétaloides	Jaunâtre Brunâtre
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
Fréquence	Rare (R)
Habitat	Prairie, pelouse Terrain sec Terrain vague, chemin
Hauteur maxi de la plante en cm	11 à 30 cm 30
Hauteur mini de la plante en cm	15
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	Absence d'arête
Couleur du sommet des bractées de l'involucre	Peu membraneux blanchâtre ou verdâtre arête exclue
Forme du capitule	Capitule en pyramide à 5 angles
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 obtuses au sommet
Séparation des sexes dans le capitule	Capitule hermaphrodite

Carte des observations

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