yellow flowers of blackstonia perfoliata.

yellow plant flower wildflower produce herb shrub food blossom meadow leaf nature green prairie petal vegetable flowers blackstonia perfoliata dry stone terraced background beautiful bloom botanical botany bright calcareous close closeup color colour image day daylight flora floral flowering garden gentianaceae grassland rioja limestone macro natural light detail nobody outdoor petals spain spring summer three wild wort yellow-wort munilla