Comparaison

Sélection

Ambrosia artemisiifolia

Ambroise élevée

Photos

Photos épinglées

Ambrosia artemisiifolia
Individu
4
Critères
Critère Ambrosia artemisiifolia
Période floraison ou sporulation
  • J
  • F
  • M
  • A
  • M
  • J
  • J
  • A
  • S
  • O
  • N
  • D
Rareté Très rare (RR)
Hauteur mini-maxi 30 - 100 cm
Habitat
Prairie, pelouse
Terrain vague, chemin
Nombre d'étamines
5
Disposition des capitules
Autres disposition des capitules
Position des épines
Plante ne possédant pas d'épine
Couleur du capitule
À une seule couleur
Présence d'écailles sur le capitule
Réceptacle nu ou pubescent entre les fleurs
Type d'akène
Pappus formé d'une couronne écailleuse
Présence de lait dans la plante
Absence de lait
Inflorescences mâles
Plante terminée par une grappe de capitules mâles
Fleurs femelles
Semences isolées enfermant une seule fleur nue
Division des feuilles inférieures
Deux fois divisée à bande médiane étroite
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
Bord des limbes
Echancrures >20% du limbe
  • Lobé ou découpé
Dimension de la fleur en mm
Plante à fleurs nues
  • Pièces florales absentes ou transformées en soies
Moins de 5 mm
  • 3
Moins de 1 cm
  • 5
Type d'inflorescence
Fleurs regroupées
  • Capitule
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
Couleur dominante des pièces pétaloides
Verdâtre
Jaunâtre
Port de la plante
Tige dressée
Position de l'ovaire
Infère
Nombre de pétales ou de tépales
Capitule
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
Type de fleur
Symétrie radiale
  • Pétales ou tépales soudés
Autre
  • Autre (Voir aide)
Type de fruit
Sec indéhiscent
  • Akène simple
Phénologie
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Carte des observations
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