Wildflower Bloom Schedule

August 5 through September 5

This is a checklist of plants in flower between August 5 and September 5.  The list is not all inclusive.  It was compiled from the Nature Observer’s records and field notes from 2002 through 2009.  Plants are arranged alphabetically by family.  Please email the Nature Observer with suggestions or corrections.

Alismataceae

1. Duck Potato, Saggittaia latifolia
   

2. Arrowhead, Saggittaia rigida
   

Amaranthaceae

1. Green Amaranth, Amaranthus retroflexus
   

Apiaceae

1. Queen Anne's Lace, Daucus carota
   

Araliaceae

1. Hercules Club, Arailia spinosa
   

Asclepiadaceae

1. Swamp Milkweed, Asclepias incarnata
   

2. Butterflyweed, Asclepias tuberosa
   

Asteraceae

1. Yarrow, Achillea millefolium
   

2. Common Ragweed, Ambrosia artemisisfolia
   

3. Giant Ragweed, Ambrosia trifida
   

4. Pearly Everlasting, Anaphalis margaritacea
   

5. Stinking Chamomile, Anthemis cotula
   

6. Burdock, Arctium minus
   

7. Common Mugwort, Artemisia vulgaris
   

8. Whorled Leaved Aster, Aster acuminatus
   

9. Blue Wood Aster, Aster cordifolius
   

10. White Wood Aster, Aster divaricatus
    

11. Calico Aster, Aster lateriflorus
    

12. Bigleaf Aster, Aster macrphyllus
    

13. New England Aster, Aster novae-angliae
    

14. Late Purple Aster, Aster patens
    

15. Heath Aster, Aster pilosus
    

16. Crooked-stemmed Aster, Aster prenanthoides
    

17. Flat-topped White Aster, Aster umbellatus (Doellingeria umbellata) (Doellingeria umbellata)
    

18. Clasping Heart-leaved Aster, Aster undulatus
    

19. Tickseed-sunflower, Bidens coronata
    

20. Beggar's Ticks, Bidens frondosa
    

21. Spotted Knapweed, Centaurea maculosa
    

22. Blue Chicory, Chichorium intybus
    

23. Ox-eye Daisy, Chrysanthemum leucanthemum
    

24. Canada Thistle, Cirsium arvense
    

25. Pasture Thistle, Cirsium pumilum
    

26. Bull Thistle, Cirsium vulgare
    

27. Horseweed, Conyza canadensis
    

28. Plains Tickseed (Garden Coreopsis), Coreopsis tinctoria
    

29. Tall Coreopsis, Coreopsis tripteris
    

30. Purple Coneflower, Echinacea purpurea
    

31. Robin Plantain, Erieron pulchellus
    

32. Common Fleabane, Erigeron annuus
    

33. Eastern Daisy Fleabane, Erigeron annuus
    

34. Prairie Fleabane (Rough Fleabane), Erigeron strigosus
    

35. Tall Boneset, Eupatorium altissimum
    

36. Joe Pyeweed, Eupatorium fistulosum
    

37. Boneset, Eupatorium perfoliatium
    

38. Sweet Scented Joe Pyeweed, Eupatorium purpureum
    

39. White Snakeroot, Eupatorium rugosum
    

40. Quickweed, Galinsoga quadriradiata
    

41. Sweet Everlasting, Gnaphalium obtusifolium
    

42. Sneezeweed, Helenium autumnale
    

43. Thin-leaved Sunflower, Helianthus decapetalus
    

44. Giant  Sunflower, Helianthus giganteus
    

45. Small Woodland  Sunflower, Helianthus microecephalis
    

46. Ox-eye, Heliopsis helianthoides
    

47. Orange Hawkweed, Hieracium aurantiacum
    

48. Canada Hawkweed, Hieracium kalmi
    

49. White Lettuce, Lactuca alba
    

50. Wild Lettuce, Lactuca canadensis
    

51. Nipplewort, Lapsana communis
    

52. Fall Dandelion, Leontodon autumnalis
    

53. Blazing Star, Liatris spicata
    

54. Pineappleweed, Matricara matricarioides
    

55. Rattle-snake Root, Prenanthes altissima
    

56. Tall Rattlesnake Root (Gall-of-the-Earth), Prenanthes trifoliata
    

57. Black-eyed Susan, Rudbeckia hirta
    

58. Tall Coneflower (Green-headed), Rudbeckia lacinata
    

59. Whorled Rosinweed, Silphium trifoliatum
    

60. Tall Goldenrod, Solidago altissima
    

61. Silver Rod, Solidago bicolor
    

62. Wreath Goldenrod, Solidago caesia
    

63. Canada Goldenrod, Solidago canadenses
    

64. Grass-leaved Goldenrod, Solidago graminifolia
    

65. Old Field Goldenrod, Solidago nemoralis
    

66. Field Sow-thistle, Sonchus arvense
    

67. Spiny-leaved Sow-thistle, Sonchus asper
    

68. Tansy, Tanacetum vulgare
    

69. Dandelion, Taraxacum officale
    

70. Tall Ironweed, Vernonia altissima
    

Balsaminaceae

1. Spotted Jewelweed, Impatiens capensis
   

2. Pale Jewelweed, Impatiens pallida
   

Boraginaceae

1. Smaller Forget-me-not, Myosotis laxa
   

2. True Forget-me-knot, Myosotis scorpioides
   

Caprfoliaceaae

1. Japanese Honeysuckle, Lonicera japonica
   

Caryophyllaceae

1. Common Chickweed, Stellaria media
   

Chenopodiaceae

1. Lamb's Quarter, Chenopodium bushianum
   

Commelinaceae

1. Asiatic Dayflower, Commelina communis,
   

Convulvulaceae

1. Hedge Bindweed, Calystegia sepium
   

2. Field Bindweed, Convulvulus arvensis
   

3. Dodder, Cuscata gronovii
   

Dipsacaceae

1. Teasel, Dipsacus sylvestris
   

2. Teasel (white form), Dipsacus sylvestris
   

Fabaceae

1. Hog Peanut, Amphicarpa bracteata
   

2. Crown Vetch, Coronilla varia
   

3. Showy Tick Trefoil, Desmodium canadense
   

4. Naked-flowered Tick Trefoil, Desmodium nudiflorum
   

5. Panicled Tick-trefoil, Desmodium paniculatum
   

6. Beach Pea, Lathyrus japonicus
   

7. Perennial Sweetpea, Lathyrus latifolus
   

8. Wand-like Bush Clover, Lespedeza intermedia
   

9. Birdsfoot Trefoil, Lotus corniculatus
   

10. Black Medic, Medicago lupulina
    

11. Alfalfa, Medicago sativa
    

12. White Sweet Clover, Melilotus alba
    

13. Hop Clover, Trifolium agrarium
    

14. Red Clover, Trifolium pratense
    

15. White Clover, Trifolium repens
    

Gentianaceae

1. Bottle Gentian, Gentiana clausa
   

Hypericaceae

1. Pale St. John’s-wort, Hypericum ellipticum
   

2. Common St. Johns-wort, Hypericum perforatum
   

3. Shrubby St. John’s-wort, Hypericum prolificum
   

4. Spotted St. John's-wort, Hypericum punctatum
   

Lamiaceae

1. Wild basil, Clinopodium vulgare
   

2. Horse Balm, Collinonsia canadensis
   

3. Motherwort, Leonurus cardiaca
   

4. American Water-horehound, Lycopus americanus
   

5. Northern Water-horehound, Lycopus uniflorus
   

6. Wild Mint, Mentha arvensis
   

7. Peppermint, Mentha piperita
   

8. Bee Balm, Monarda
   

9. Purple Bergamot, Monarda media
   

10. Self Heal, Prunella vulgare
    

11. Mad Dog Skullcap, Scutellaria lateriflora
    

Liliaceae

1. Nodding Wild Onion, Allium cernuum
   

2. Day Lily, Hemerocallis fulva
   

Lobelaceae

1. Cardinal Flower, Lobelia cardinalis
   

2. Indian Tobacco, Lobelia inflata
   

3. Great Lobelia, Lobelia siphilitica
   

Lythaceae

1. Swamp Loosestrife (Water Willow), Decodon verticullatus
   

2. Purple Loosestrife, Lythyrum salicaria
   

Malvaceae

1. Velvet-leaf, Abutilon theophrasti
   

2. Rose-of-Sharon, Hibiscus syricacus
   

3. Musk Mallow, Malva moshata
   

4. Cheeses, Malva neglecta
   

Monotropaceae

1. Pinesap, Monotropa hypoputhys
   

2. Indian Pipe, Monotropa uniflora
   

Nymphaeaceae

1. American Lotus, Nelumbo lutea
   

2. Spatterdock, Nuphar lutea
   

Onagraceae

1. American Willow-herb, Epilobium ciliatum
   

2. Purple-leaved Willowherb, Epilobium coloratum
   

3. Hairy Willow Herb, Epilobium hirsutum
   

4. Biennial Gaura, Gaura biennis
   

5. Common Evening Primrose, Oenothera biennis
   

6. Sundrops, Oenothera fruiticosa
   

Orchidaceae

1. Bastard Hellebore, Epipactis helleborine
   

2. Downy Rattlesnake Plantain, Goodyera pubescens
   

3. Nodding Lady Tresses, Spiranthes cernua
   

Oxalidaceae

1. Yellow Wood Sorrel, Oxalis scripta
   

Phytolaccaceae

1. Pokeweed, Phytolacca americana,
   

Plantaginaceae

1. English Plantain, Plantago lanceolota
   

2. Broad-leafed Plantain, Plantago major
   

Polemoniaceae

1. Wild Sweet William, Phlox maculatum
   

2. Summer Phlox, Phlox paniculata
   

Polygalaceae

1. Purple Milkwort, Polygal sanquinea,
   

Polygonaceae

1. Water Smartweed, Polygonum amphibium
   

2. Doorweed, Polygonum aviculare
   

3. Oriental Lady's-thumb, Polygonum caespitosum
   

4. Black Bindweed, Polygonum convolvulus
   

5. Japanese Knotweed, Polygonum cuspidatum
   

6. Mild Water-pepper, Polygonum hydropiperoides
   

7. Lady's Thumb, Polygonum persicaria
   

8. Arrow-leaved Tearthumb, Polygonum sagittatum
   

9. Climbing False Buckwheat, Polygonum scandens
   

10. Jumpseed, Polygonum virginianum
    

11. Curly Dock, Rumex crispus
    

Portulacaceae

1. Purslane, Portulaca oleracea
   

Potamogetonaceae

1. Pickerel-weed, Pontederia cordata
   

Primulaceae

1. Fringed Loosestrife, Lysimachia ciliata
   

2. Moneywort, Lysimachia nummularia
   

Ranunculaceae

1. Black Cohosh, Cimicifuga racemosa
   

2. Virgin's Bower, Clematis virginiana
   

3. Tall Buttercup, Ranunculus acris
   

4. Tall Meadowrue, Thalictrum pubescens
   

Rosaceae

1. Common Agrimony, Agrimony grypsosepala
   

2. Small-flowered (Southern) Agrimony, Agrimony parviflora
   

3. White Avens, Geum canadense
   

4. Strawberry-weed, Potentilla norvegica
   

5. Sulphur Cinquefoil, Potentilla recta
   

6. Narrow-leaved Meadowsweet, Spirea alba
   

7. Meadowsweet, Spirea latifolia
   

8. Steeplebush, Spirea tomentosa
   

Scrophulariaceae

1. Turtlehead, Chelone glabra
   

2. Butter and Eggs, Linaria vulgaris
   

3. Common Mullien, Verbascum thapsus
   

4. American Speedwell (Brooklime), Veronica americana
   

Solanaceae

1. Clammy Ground Cherry, Physalis heterophylla
   

2. Horse Nettle, Solanum carolinense
   

3. Bittersweet Nightshade, Solanum dulcamara
   

4. Garden Tomato, Solanum lycopersicum
   

5. Black Nightshade, Solanum nigra
   

Urticaceae

1. False Nettle, Boehmeria cylindica
   

2. Wood Nettle, Laportea canadensis
   

3. Clearweed, Pilea pumila
   

4. Stinging Nettle, Urtica dioca
   

5. Tall Nettle, Urtica procera
   

Verbenacaeae

1. Lance-leaved Fogfruit, Phyla lanceolata
   

2. Blue Vervain, Verbena hastata
   

3. White Vervain, Verbena urticifolia
   

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