eryngium bourgatii, mediterranean sea holly, with spiky blue thistle flowers and green foliage in natural light

alpine bloom blue botanical bourgatii color distinctive ecological ecosystem environment eryngium eryngo flower foliage garden green growth herbaceous holly horticulture landscapes leaves mediterranean nature ornamental outdoors perennial plant pyrenean scenic species spiky spiny stem structure summer summertime sunlight surface texture textured thistle unique vibrant wildflower