horse-chestnut (aesculus hippocastanum). inflorescence detail closeup

aesculus hippocastanum belarus flora european horsechestnut hippocastanaceae sapindaceae androecium anther anthesis black background botanical science botany buckeye calyx clavate stigma closeup conker tree corolla crisped hair eglandular filament floral bud flower focus stacking gynoecium inflorescence macro nature nectar guide pedicel peduncle petal plants pollen sepal sigmoid stamen style undulate margin virtual herbarium floccose