Feverweed prickly plant with two painted lady butterflies, close-up rack focus

feverweed prickly plant painted lady butterflies sea holly eryngium thorny eryngium maritimum vanessa cardui sea eryngium butterfly closeup rack focus holly coastal vegetation thorny leaves spines nature summer beach flora floral outdoors outside desert cactus plant droughttolerant sharp leaves sea eryngo perennial plume thistle apiaceae xerophyte stiff leathery coastal species prickly plant cosmopolitan vanessa nymphalidae lepidoptera insect widespread conspicuous orange wings rhopalocera