Comparaison

Photos

Epilobium palustre

Critères

Critère	Épilobe des marais Epilobium palustre
Période floraison ou sporulation	J F M A M J J A S O N D
Rareté	Extrêmement rare (RRR)
Hauteur mini-maxi	15 - 50 cm
Couleur dominante des pièces pétaloides	Rose, lilas
Nombre de pétales ou de tépales	4
Port de la plante	Tige dressée
Habitat	Zone humide, tourbière, rives
Nombre d'étamines	8 ou 9
Position de l'ovaire	Infère
Nombre de styles et stigmates	Un seul style terminé par 2-4 stigmates agglomérés
Détail du fruit	Capsule fine, en tube de plus de 3 cm
Stolons	Longs stolons souterrains (ou rhizomes)
Persistance des sépales	Sépales caducs
Détail des graines	Surmontées d'une longue aigrette soyeuse
Forme de la base du limbe de la feuille	Courtement pétiolée (< 3 mm)
Forme du sommet des graines	Prolongé par un appendice portant l'aigrette
Ornementations des graines	Verrues réparties sur toute la surface
Pilosité des tiges	Poils courts et arqués inférieurs à 0,4 mm
Poils glanduleux de l'inflorescence	Sur les sépales, les fruits et les tiges
Type de plante	Plante herbacée à fleurs Autre plante herbacée à fleur
Type biologique	Plante terrestre Plante vivace en surface
Disposition des feuilles	Tige aérienne avec feuilles Opposées Alternes
Structure de la feuille	Feuille non découpée Simple, non découpée
Forme des feuilles indivises	Rapport longueur / largeur 5-10 Linéaire lancéolée
Bord des limbes	Echancrures < 20% du limbe Entier à marge lisse ou scabre
Type de fleur	Symétrie radiale Pétales ou tépales libres
Dimension de la fleur en mm	1 à 2 cm 10
Type d'inflorescence	Fleurs regroupées Grappe ou grappe composée
Type de fruit	Sec déhiscent À autre mode d'ouverture (capsule)
Forme de la tige ou de la hampe florale	Tige cylindrique Lisse ou finement striée

Carte des observations

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