leuzea root. maral root. medicinal plants linear drawing. botanical

asteraceae background beautiful bloom blossom botanic botanical botany bracts brownish calcareous closeup drawing flora flower flowers garden giant green herb hermaphroditic illustration inflorescence knapweed leaf leuzea linear maral medicinal mountain natural nature perennial petal pink plant plants purgative purple rhaponticum root russia scabiosa scapose scarious scene soil spherical spring stem summer tomentose vector wild wildflower