Comparaison

Photos

Bidens radiata

Critères

Critère	Bident radié Bidens radiata
Période floraison ou sporulation	J F M A M J J A S O N D
Rareté	Extrêmement rare (RRR)
Hauteur mini-maxi	20 - 140 cm
Position de l'ovaire	Infère
Couleur dominante des pièces pétaloides	Jaune
Habitat	Zone humide, tourbière, rives
Nombre de pétales ou de tépales	Capitule
Nombre d'étamines	5
Port de la plante	Tige dressée
Couleur du capitule	À une seule couleur
Disposition des capitules	Autres disposition des capitules
Position des épines	Plante ne possédant pas d'épine
Présence d'écailles sur le capitule	Fleur placée à l'aisselle d'une écaille
Présence de lait dans la plante	Absence de lait
Type d'akène	Pappus formé de 2 à 4 arêtes
Bractées périphériques	Étalées certaines dépassant nettement 2 cm
Découpure des feuilles	Divisées à segments non petiolulés
Détail du fruit	Surmonté de 2 à 4 pointes raides et accrochantes
Dimension et forme du capitule	Large et plat à plus de 100 fleurs
Forme des akènes	Aplati et surmonté de 2 à 3 pointes
Ornementation du corps de l'akène	Glabre et lisse et marges à poils vers le bas
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 Opposées
Structure de la feuille	Feuille plus ou moins découpée Pennée et plus profondément découpée
Forme des feuilles indivises	Feuilles découpées ou composées Feuilles découpées ou composées
Bord des limbes	Echancrures >20% du limbe Lobé ou découpé
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	1 à 2 cm 20
Type d'inflorescence	Fleurs regroupées Capitule
Type de fruit	Sec indéhiscent Akène simple
Forme de la tige ou de la hampe florale	Tige cylindrique Nettement sillonnée
Composition du capitule	Fleurs en tube uniquement Le tube se termine par 5 dents courtes

Carte des observations

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