background - numerous yellow flowers of ceratocephala testiculata

field flowers yellow ceratocephala testiculata plants nature green closeup grass macro stem spring meadow outdoors vibrant leaf wild growth botany uncultivated small bright weed bud young natural fresh foliage flora lush herb orthoceras ranunculus testiculatus bur buttercup curveseed poisonous invasive chickweed petal prostrate wilderness glade