Comparaison

Photos

Oenanthe aquatica

© GA
Critères
Critère
Oenanthe aquatique
Oenanthe aquatica
Période floraison ou sporulation
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Rareté Assez rare (AR)
Hauteur mini-maxi 40 - 180 cm
Bord des limbes Echancrures >20% du limbe
Lobé ou découpé
Caractère particulier Plante à odeur désagréable
Couleur dominante des pièces pétaloides Blanche
Dimension de la fleur en mm Moins de 5 mm
3
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 Feuilles découpées ou composées
Fréquence Assez rare (AR)
Habitat Lac, étang, rivière
Zone humide, tourbière, rives
Hauteur maxi de la plante en cm 1 à 2 mètres
180
Hauteur mini de la plante en cm 40
Nombre d'étamines 5
Nombre de pétales ou de tépales 5
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 aquatique
Dépassant la surface
Plante terrestre
Plante annuelle
Plante vivace en surface
Type d'inflorescence Fleurs regroupées
Ombelle
Type de fleur Symétrie radiale
Pétales ou tépales libres
Symétrie bilatérale
Type de fruit Sec indéhiscent
Akène simple
Type de plante Plante herbacée à fleurs
Autre plante herbacée à fleur
Découpure de la feuille Derniers segments étroits, linéaires à filiformes
Forme des bractées de l'involucre Involucre absent ou très réduit, 0 à 2 bractées
Forme des bractéoles de l'involucelle Involucelle développé, plus de 2 bractéoles
Forme du fruit Non aplati en disque ou lentille
Oblong, entre 2 et 3 fois plus long que large
Inflorescence détail Ombelles composées d'ombellules
Inégalité des fleurs Fleurs périphériques à peine plus grandes
Nombre de rayons par ombelle 6 à 15
Ornementation du fruit Fruits sans aiguillons, poils ou écailles
Nervuré
Pilosité de la plante Plante glabre ou localement ciliée
Pilosité du fruit Glabre et non épineux
Disposition des ombelles Ombelles latérales à pédoncules courts
Forme des akènes Fruits ellipsoïdes, rétrécis au sommet
Forme des bractéoles de l'involucelle Btactéoles lancéolées
Fruits et styles Fruit > 3 mm à style grêle < 1,3 mm
Particularité de l'inflorescence à maturité Ombelle à ombellules espacées et hémisphériques
Particularité de la tige Tige compressible
Présence des sépales au sommet du fruit Présence d'une couronne de sépales au sommet
Carte des observations
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