large trefoil (trifolium aureum). inflorescence closeup

chrysaspis aurea fabaceae leguminosae trifolium aureum alae anthesis appressed hair banner calyx capitulum corolla flower head inflorescence keel petal papilionaceous pedicel peduncle sepal standard sulcate vexillum wings large trefoil golden clover hop aureum closeup virtual herbarium belarus flora: focus-stacked closeups wild cultivated plants including flowers leaves fruits intended illustrations botanical manuals