closeup of an pickerelweed (pontederia cordata) flower.

flower yellow green plant leaf petal wildflower nature branch grass blossom produce insect meadow herb sunlight purple europe poland countryside river botanical texture depth field pickerelweed natural weed cultivated closeup aquatic leaves park outdoor foliage conservation environment travel lake wild colorful wetlands pickerel pond summer water pontederia cordata background beautiful beauty bloom blooming blue botany color flora floral garden