UMass Extension Weed Herbarium

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Common Name Scientific Name Family Name
tansy Tanacetum vulgare Asteraceae (Compositae) - Aster or Sunflower Family
tear-thumb, arrowleaf Polygonum sagittatum Polygonaceae - Smartweed or Buckwheat Family
tearthumb, Halberd-leaved Polygonum arifolium Polygonaceae - Smartweed or Buckwheat Family
teasel Dipsacus fullonum Dipsacaceae - Teasel Family
thimbleberry see - raspberry, purple-flowering
thistle, bull Cirsium vulgare Asteraceae (Compositae) - Aster or Sunflower Family
thistle, Canada Cirsium arvense Asteraceae (Compositae) - Aster or Sunflower Family
thistle, creeping see - thistle, Canada
thorn apple see - jimsonweed
thoroughwort see - boneset
thousandleaf see - yarrow
three-seeded mercury see - copper-leaf, rhombic
tickclover, hoary Desmodium canadense Fabaceae (Leguminosae) - Pea or Bean Family
ticktrefoil, prostrate Desmodium rotundifolium Fabaceae (Leguminosae) - Pea or Bean Family
ticktrefoil, round-leaved see - ticktrefoil, prostrate
timothy Phleum pratense Poaceae (Graminae) - Grass Family
toadflax, annual see - toadflax, old field
toadflax, blue see - toadflax, old field
toadflax, Canada see - toadflax, old field
toadflax, old field Linaria canadensis Scrophulariaceae - Figwort Family
toadflax, yellow Linaria vulgaris Scrophulariaceae - Figwort Family
tobacco, Indian Lobelia inflata Lobeliaceae - Bluebell Family
touch-me-not, pale Impatiens pallida Balsaminaceae - Touch-Me-Not Family
touch-me-not, spotted Impatiens capensis Balsaminaceae - Touch-Me-Not Family
tree-of-Heaven Ailanthus altissima Simaroubaceae - Quassia Family
tree-that-grows-in-Brooklyn see - tree-of-Heaven
trefoil, birdfoot Lotus corniculatus Fabaceae (Leguminosae) - Pea or Bean Family
trumpetweed see - Joe-pye weed, hollow-stemmed
turkeyclaw see - big bluestem
turkeyfoot see - big bluestem