macro closeup of the yellow flowers of a kalm`s st. johns wort bush, popular tropical ornamental plant specie from america

039 america american background bloom blooming blossom blossoming botanic botanical botany boulevard bright bush bushes closeup cultivar cultivated cultivation exotic flower flowering flowers garden gardening great horticulture hypericum johns johnswort kalm kalmianum kalms lakes macro nature north ornamental plant plants popular saint specie species sunny tropical vibrant vivid wild wort yellow