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Keywords from Image Description:
droege plant flower white beltsville maryland biml usgs pwrc cardamine hirsuta cardaminehirsuta taxonomybinomialcardamine hirsuta brassica rosette flower black hirsutabrassicarosetteflowerblack background zerene backgroundzerene stacker plants weed weeds bittercress plantae angiosperms eudicots rosids brassicales brassicaceae cardamine