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Buckthorn

 
Buckthorn (female) Kingcolme Nature Reserve, Dorset
 
 
 
Male flowers on separate tree
 
 
Cluster of male flowers
 
 
Corolla view - 4 stamens and green petals
 
 
Side view- flower stems, sepals, petals and stamens
 
 
Close-up of anthers
 
 
 
Clusters of female flowers
 
 
Closer view of female flower clusters
 
 
Close-up of female flower- 4 petals and 4 styles
 
 
Side view of female flower- 4 stigmas, 4 petals, 4 sepals
 
and  remains of shrivelled sterile stamens
 
 
Female flowers with sterile stamens
 
 
Young berries
 
 
Black, mature berry in August
 
 
Last year's grey wood and ythis year's green wood
 
 
Upper leaf surface
 
 
Lower leaf surface showing prominent veins
 
 
Stems with thorns
 
 
Close-up of thorn and stem
 
 
Old trunk- bark, mosses and lichens