acanthus hungaricus high flowering plant, herbaceous purple white green flower in bloom on stem

acanthaceae acanthus balcanicus bears bloom blooming blossom blossoming botanic botanical botany breeches bud bunch closeup daylight detail endemic flora floral flower flowering foliage garden green group herbaceous high hungaricus leaf longifolius macro natural nature ornamental outdoors petal pink plant purple shape shrub spike subshrub violet white world