UMass Extension Weed Herbarium

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Common Name Scientific Name Family Name
yardgrass see - goosegrass
yarrow Achillea millefolium Asteraceae (Compositae) - Aster or Sunflower Family
yellow devil see - hawkweed
yellow-rattle Rhinanthus minor Scrophulariaceae - Figwort Family
yellowcress see - fieldcress, prostrate
yellowcress, common see - yellowcress, marsh
yellowcress, marsh Rorippa palustris Brassicaceae (Cruciferae) - Mustard Family