`birdcage thistle` flower - atractylis cancellata

acarna arboretum aster asteraceae atractylis barbed bird birdcage bloom blossom botanical botany cacti cactus caespitosa cage cancellata compositae crocodilina daisy flora flower gallen garden gitter green kraut leaf natural nature petal plant saint spike spiky spindel spindelkraut spine spined sun sunflower switzerland thistle thorn thorny wire