Weed Herbarium – by Scientific Name

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Tanacetum
Tanacetum vulgare tansy Asteraceae (Compositae) - Aster or Sunflower Family
Taraxacum
Taraxacum officinale dandelion Asteraceae (Compositae) - Aster or Sunflower Family
Thalictrum
Thalictrum pubescens see - Thalictrum polygamum
Thalictrum polygamum tall meadow rue Ranunculaceae - Buttercup Family
Thlaspi
Thlaspi arvense field pennycress Brassicaceae (Cruciferae) - Mustard Family
Tovara
Tovara virginiana Virginia knotweed Polygonaceae - Smartweed or Buckwheat Family
Toxicodendron
Toxicodendron radicans poison ivy Anacardiaceae - Cashew Family
Tragopogon
Tragopogon dubius yellow salsify Asteraceae (Compositae) - Aster or Sunflower Family
Trichostema
Trichostema dichotomum bluecurls Lamiaceae (Labiatae) - Mint Family
Tridens
Tridens flavus purpletop Poaceae (Graminae) - Grass Family
Trifolium
Trifolium arvense rabbitfoot clover Fabaceae (Leguminosae) - Pea or Bean Family
Trifolium hybridum alsike clover Fabaceae (Leguminosae) - Pea or Bean Family
Trifolium pratense red clover Fabaceae (Leguminosae) - Pea or Bean Family
Trifolium repens white clover Fabaceae (Leguminosae) - Pea or Bean Family
Triodanis
Triodanis perfoliata Venus lookingglass Campanulaceae - Bluebell Family
Triodia
Triodia flava flavus see - Tridens flavus
Tussilago
Tussilago farfara coltsfoot Asteraceae (Compositae) - Aster or Sunflower Family
Typha
Typha latifolia common cattail Typhaceae - Cattail Family