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84 Cards in this Set
- Front
- Back
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What is the latin name for velvetleaf?
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Abutilon theophrasti
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What family is velvetleaf in?
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mallow
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What is the latin name of prostrate pigweed?
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Amaranthus blitoides
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What is interesting about the greenish prostrate pigweed flowers?
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they are located in the axils
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What is the latin name for redroot pigweed?
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Amaranthus retroflexus
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Which plant does the redroot pigweed resemble? How does it differ from it?
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lambsquarters; it has bristly leaves
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What is the latin name for the common ragweed?
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Ambrosia artemisiifolia
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What shape are the flowers of ragweed?
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cones
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The leaves of the common ragweed resemble that of which weed?
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wild carrot
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What is the latin name for giant ragweed?
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Ambrosia trifida
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What do the leaves of the giant ragweed look like?
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three fingers (hence trifida)
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What is the latin name for burdock?
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Arcticum minus
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What shape are burdock leaves in?
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funnels
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What is the latin name for common lambsquarters?
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Chenopodium album
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What family is lambsquarters in?
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goosefoot
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What is the latin name for chicory?
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Cichorium intybus
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Which weed is the only one with a distinct blue flower?
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chicory
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What is the latin name for wild carrot?
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Daucus carota
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What is the latin name for barnyard grass?
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Echinochloa crus-galli
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Where is barnyard grass typically found?
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wet places such as marshes
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What is the latin name for prostrate spurge?
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Euphorbia supina
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Which weed has a characteristic red dot on its leaves and contains a milky latex?
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prostrate spurge
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What is the latin name for birdsfoot trefoil?
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Lotus corniculatus
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Which family is birdsfoot trefoil in?
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bean
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What is the latin name for common mallow?
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Malva neglecta
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what color are the little white flowers on the common mallow?
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white
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What is the common name for pineappleweed?
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Matricaria matricariodes
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Which weed has a distinctive cone head and smells of its name?
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pineappleweed
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What is the latin name for yellow woodsorrel?
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Oxalis stricta
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Which weed tastes bitter and looks like a clover?
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yellow woodsorrel
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What is the latin name for the virginia creeper?
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Parthenocissus quinquefolia
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Which weed has red stems and blue berries?
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virginia creeper
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What is the latin name for reed canarygrass?
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Phalaris arundincea
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What is the latin name for prostrate knotweed?
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Polygonum aviculare
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Which weed has a noteable papery sheath known as an okre to distinguish it from lambquarters?
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prostrate knotweed
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what is the latin name for curly dock?
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Rumex crispus
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Which weed is the only one whose color is a distinct deep red?
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curly dock
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What is the latin name for giant foxtail?
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Setaria faberi
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What separates the different foxtail species?
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seed size. yellow largest, green smallest
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What is the latin name for yellow foxtail?
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Setaria glauca
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What is the latin name for green foxtail?
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Setaria viridis
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What is the latin name for goldenrod?
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Solidago canadensis
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What texture is the goldenrod flower?
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fluffy
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what is the latin name for dandelion?
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Taraxicum officinale
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What is the latin name for goatsbeard?
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Tragopogon dubinus
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Which weed looks similar to a dandelion, but differs due to it's branching structure and milky latex?
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goatsbeard
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What is the latin name for woolly mullein?
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Verbascum thapsus
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Which weed is noted for having spines down the leaf's primary vein?
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prickly lettuce
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Spotted napweed is similar to the Canadian thistle, but differs because it's leaves are ---.
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small and sharply pointed
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Which weed is also called the nest weed due to it's cavity of flowers?
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queen anne's lace
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What is significant to identifying the annual sow thistle?
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it has milky latex and yellow flowers
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what family are pigweeds in?
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pigweed
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which family are ragweeds in?
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sunflower (aster)
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Which family is burdock in?
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sunflower (aster)
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Which family is spotted knapweed in?
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sunflower (aster)
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which family is chicory in?
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sunflower (aster)
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which family is canada thistle in?
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sunflower (aster)
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which family is horseweed in?
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sunflower (aster)
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which family is yellow nutsedge in?
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sedge
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Which family is wild carrot in?
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umbel
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Which family is barnyard grass found in?
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grass
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Which family is prostrate spurge found in?
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spurge
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which family is prickly lettuce found in?
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sunflower (aster)
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which family is pineappleweed in?
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sunflower (aster)
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which family is black medic in?
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bean
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which family is catnip in?
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mint
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which family is yellow woodsorrel in?
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woodsorrel
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which family is virginia creeper in?
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vine
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which family is reed canarygrass in?
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grass
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which family is prostrate knotweed in?
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buckwheat
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which family is wild buckwheat in?
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buckwheat
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what is significant about weeds in the buckwheat family?
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they are viney extensions that grow up things.
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How can buckwheat be distinguished from knotweed?
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buckwheat has okre
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which family is purslane in?
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purslane
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which family are the foxtails in?
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grass
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which family is the annual sowthistle in?
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sunflower (aster)
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which family is woolly mullein in?
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snapdragon
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Seges have ---
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edges. Triangular ones
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What shape are velevetleaf seeds?
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heart
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Which weed has the distinctive umbrella shaped seed tip?
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goatsbeard
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which weed had distinctive twisted awns?
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Wild oat
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Which weed is known as catchweed for how sticky its little balls are?
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gallian
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Which weed has a honey-pot type flower full of seeds?
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white cockle (cockles)
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What is distinctive about the mint family other than its smell?
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it has a square stem
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