UMass Extension Weed Herbarium

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Common Name Scientific Name Family Name
knotweed, German see - knawel
knotweed, giant Polygonum sachalinense Polygonaceae - Smartweed or Buckwheat Family
knotweed, Japanese Polygonum cuspidatum Polygonaceae - Smartweed or Buckwheat Family
knotweed, Mexican see - knotweed, Japanese
knotweed, pink see - smartweed, Pennsylvania
knotweed, prostrate Polygonum aviculare Polygonaceae - Smartweed or Buckwheat Family
knotweed, Virginia Tovara virginiana Polygonaceae - Smartweed or Buckwheat Family
kochia Kochia scoparia Chenopodiaceae - Goosefoot Family
kudzu Pueraria montana Fabaceae (Leguminosae) - Pea or Bean Family
kudzu vine see - kudzu
lady's smock see - bittercress, cuckoo
lambsquarters, common Chenopodium album Chenopodiaceae - Goosefoot Family
lawngrass, Japanese Zoysia japonica Poaceae (Graminae) - Grass Family
lawngrass, Korean see - lawngrass, Japanese
lespedeza, Virginia see - bush clover, slender
lettuce, biennial Lactuca biennis Asteraceae (Compositae) - Aster or Sunflower Family
lettuce, Canada see - lettuce, tall
lettuce, prickly Lactuca serriola Asteraceae (Compositae) - Aster or Sunflower Family
lettuce, tall Lactuca canadensis Asteraceae (Compositae) - Aster or Sunflower Family
lettuce , tall blue see - lettuce, biennial
lettuce, wild see - lettuce, tall
lily-of-the-valley, false Maianthemum canadense Liliaceae - Lily Family
lion's tooth see - dandelion
little starwort Stellaria graminea Caryophyllaceae - Pink Family
liverwort Marchantia polymorpha Phylum: Hepatophyta
lobelia, great Lobelia siphilitica Lobeliaceae - Bluebell Family
locust, bristly Robinia hispida Fabaceae (Leguminosae) - Pea or Bean Family
loosestrife, fringed Lysimachia ciliata Primulaceae - Primrose Family
loosestrife, purple Lythrum salicaria Lythraceae - Loosestrife Family
lovegrass, purple Eragrotis spectabilis Poaceae (Graminae) - Grass Family
lovegrass, stinkgrass
madder, wild see - bedstraw, smooth
maiden, pink Dianthus deltoides Caryophyllaceae - Pink Family
mallow, common Malva neglecta Malvaceae - Mallow Family
mallow, Indian see - velvetleaf
mallow, low see - mallow, common
mallow, round-leaved see - mallow, common
mallow, Venice Hibicus tronium Malvaceae - Mallow Family
marestail see - horseweed
markweed see - poison ivy
Mary's grass see - stiltgrass, Japanese
masterwort see - angelica, purplestem
matgrass see - knotweed, prostrate
mayflower, Canada see - lily-of-the-valley, false
mayweed see - pineappleweed
meadow rue, tall Thalictrum polygamum Ranunculaceae - Buttercup Family
mealweed see - lambsquarters, common
medic, black Medicago lupulina Fabaceae (Leguminosae) - Pea or Bean Family
melilot see - copper-leaf, rhombic
mercuryweed see - mallow, common

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