Comparaison

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Trifolium scabrum

Critères

Critère	Trèfle rude Trifolium scabrum
Période floraison ou sporulation	J F M A M J J A S O N D
Rareté	Très rare (RR)
Hauteur mini-maxi	5 - 20 cm
Couleur dominante des pièces pétaloides	Blanche
Nombre de pétales ou de tépales	5
Port de la plante	Rampante Tige dressée
Habitat	Eboulis, rocher, terrain rocailleux Terrain sec
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 1 à 2 cm
Forme de l'inflorescence	Ovoïde allongé ( 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 axillaire
Nervation des folioles	Nervures épaissies et 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 entièrement velu
Forme des stipules	Brusquement rétrécie en pointe, 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 annuelle
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	Moins de 1 cm 5 1 à 2 cm 12
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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