Comparaison

Photos

Bidens radiata
© GA
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
Bord des limbes Echancrures >20% du limbe
Lobé ou découpé
Couleur dominante des pièces pétaloides Jaune
Dimension de la fleur en mm 1 à 2 cm
20
Disposition des feuilles Tige aérienne avec feuilles
Opposées
Forme de la tige ou de la hampe florale Tige cylindrique
Nettement sillonnée
Forme des feuilles indivises Feuilles découpées ou composées
Fréquence Extrêmement rare (RRR)
Habitat Zone humide, tourbière, rives
Hauteur maxi de la plante en cm 1 à 2 mètres
140
Hauteur mini de la plante en cm 20
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 plus ou moins découpée
Pennée et plus profondément 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 simple
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 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
Dimension et forme du capitule Large et plat à plus de 100 fleurs
Découpure des feuilles Divisées à segments non petiolulés
Détail du fruit Surmonté de 2 à 4 pointes raides et accrochantes
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
Carte des observations
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