Comparaison

Photos

Trifolium medium

Critères

Critère	Trèfle intermédiaire Trifolium medium
Période floraison ou sporulation	J F M A M J J A S O N D
Rareté	Rare (R)
Hauteur mini-maxi	15 - 40 cm
Couleur dominante des pièces pétaloides	Rouge, pourpre
Nombre de pétales ou de tépales	5
Port de la plante	Rampante Tige dressée
Habitat	Terrain vague, chemin Forêt, haie, lisière, chemin forestier (laie)
Nombre d'étamines	10
Position de l'ovaire	Supère
Type de corolle	Corolle papilionacée
Détail des feuilles	Composée de 3 folioles, sans vrille
Visibilité du fruit	Fruit caché par le calice ou la corolle sèche
Dimension de l'inflorescence	De 2 à 3 cm Plus de 3 cm
Forme de l'inflorescence	Sphérique ou courtement ovoïde (L/l < 1,5)
Caractère particulier	Présence de stipules ou d'ochréas
Détail du fruit	Akène court Gousse plus ou moins déhiscente (2 valves)
Forme des stipules	Simples et soudées engainantes à leur base
Disposition des étamines	1 étamine supérieure libre, 9 soudées en canal
Insertion de la foliole terminale	À pétiole court égalant ceux des latérales
Localisation de l'inflorescence	Sessile et terminale (sous-tendue par 2 feuilles)
Nervation des folioles	Nervures fines arquées au sommet
Nervation du calice	Calice à 10 nervures
Nombre de fleurs dans l' inflorescence	Plus de 20 fleurs
Pilosité de la tige	Nettement velue
Pilosité du calice	Calice velu seulement sur les dents
Forme des stipules	Étroite, prolongée en pointe fine, non glanduleuse
Forme du calice à maturité	Calices non enflés à maturité
Localisation des fruits	Pédoncules et fruits restant aériens
Orientation des fleurs fanées	Fleurs non rabattues ou restant denses
Ornementation de l'étendard (pétale supérieur)	Étendard peu ou pas sillonné
Type de plante	Plante herbacée à fleurs Autre plante herbacée à fleur
Type biologique	Plante terrestre Plante vivace souterraine
Disposition des feuilles	Tige aérienne avec feuilles Alternes
Structure de la feuille	Feuille composée Composée palmée
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 bilatérale Pétales ou tépales libres
Dimension de la fleur en mm	1 à 2 cm 18 2 à 5 cm 25
Type d'inflorescence	Fleurs regroupées Tête globuleuse
Type de fruit	Sec déhiscent À 2 valves sans cloison centrale (gousse)
Forme de la tige ou de la hampe florale	Tige cylindrique Lisse ou finement striée

Carte des observations

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