Late Flowering Plants Dec 2001, Green Bay WI
These species were still in flower Dec 05, 2001 in the City of Green Bay
Gary Fewless

Common orache (Atriplex patula)
White Panicled Aster (Aster simplex)
Hoary Alyssum (Berteroa incana)
Nodding Beggar-ticks (Bidens cernua)
Common Beggar-ticks (Bidens frondosa)
Charlock (Brassica kaber)
Brome Grass (Bromus inermis)
Spotted Knapweed (Centaurea maculosa)
Canadian Horseweed (Conyza canadensis)
Red-osier Dogwood (Cornus stolonifera)
Wild Carrot (Daucus carota)
Dog Mustard (Erucastrum gallicum)
White Snakeroot (Eupatorium rugosum)
Worm-seed Mustard (Erysimum cheiranthoides)
Small Peppergrass (Lepidium densiflorum)
Black Medick (Medicago lupulina)
White Sweet Clover (Melilotus alba)
Yellow Sweet Clover (Melilotus officinalis)
Catnip (Nepeta cataria)
Wild Parsnip (Pastinaca sativa)
Knotweed (Polygonum aviculare)
Rough-fruited Cinquefoil (Potentilla recta)
Ragwort (Senecio vulgaris)
Black Nightshade (Solanum nigrum)
Sow-Thistle (Sonchus uliginosus)
Tansy (Tanacetum vulgaris)
Dandelion (Taraxacum officinale)
Field Penny Cress (Thlaspi arvense)
Alsike Clover (Trifolium hybridum)
Red Clover (Trifolium pratense)
White Clover (Trifolium repens)