SPECIES BLOOM TIMES
Includes all species monitored by Plants of Concern through 2006.
POC Monitors should only use this list as a general reference. All monitoring should be done within 10 days of the previous years' monitoring date.
Species Bloom Times - sorted by Species
Species Bloom Times - sorted by Bloom Times
Download Lists (PDF Files)
Species Bloom Times - sorted by Species
Species Bloom Times - sorted by Bloom Times
Species Bloom Times - Sorted by Species Name
| Species | Start Date |
End Date |
Middle Date |
| Actaea rubra | 4/16 |
5/10 |
4/28 |
| Adiantum pedatum | 7/7 |
7/25 |
7/16 |
| Agalinis skinneriana | 8/17 |
9/27 |
9/6 |
| Amelanchier interior | 4/20 |
5/14 |
5/2 |
| Amelanchier sanguinea | 5/4 |
5/12 |
5/8 |
| Ammophila breviligulata | 7/4 |
9/12 |
8/8 |
| Arabis hirsuta | 5/12 |
6/25 |
6/3 |
| Aralia racemosa | 7/10 |
8/30 |
8/4 |
| Aristolochia serpentaria | 5/27 |
7/7 |
6/16 |
| Artemisia serrata | 8/24 |
9/15 |
9/4 |
| Asclepias exaltata | 5/30 |
7/12 |
6/20 |
| Asclepias lanuginosa | 5/30 |
6/25 |
6/12 |
| Asclepias meadii | |||
| Asclepias ovalifolia | 5/22 |
6/25 |
6/8 |
| Asclepias perennis | |||
| Asclepias viridiflora | 6/17 |
8/4 |
7/11 |
| Aster furcatus | 8/3 |
9/12 |
8/23 |
| Baptisia leucophaea | 5/4 |
6/14 |
5/24 |
| Beckmannia syzigachne | 6/25 |
7/25 |
7/10 |
| Besseya bullii | 5/12 |
5/16 |
5/14 |
| Betula alleghaniensis | 4/10 |
5/24 |
5/2 |
| Betula populifolia | 5/3 |
10/11 |
7/22 |
| Bidens discoidea | 9/2 |
9/16 |
9/9 |
| Bolboschoenus maritimus | 8/1 |
8/1 |
|
| Botrychium matricariifolium | 5/23 |
6/3 |
5/28 |
| Cakile edentula | 6/8 |
9/30 |
8/4 |
| Callitriche heterophylla | 5/11 |
8/28 |
7/4 |
| Callitriche palustris | 5/25 |
10/1 |
7/28 |
| Calopogon tuberosus | 6/6 |
8/9 |
7/8 |
| Carex alata* | 5/30 |
6/8 |
6/3 |
| Carex aurea* | 5/24 |
5/26 |
5/25 |
| Carex bromoides* | 4/11 |
5/17 |
4/29 |
| Carex brunnescens* | 6/1 |
6/8 |
6/4 |
| Carex crawei* | 4/27 |
5/29 |
5/13 |
| Carex crawfordii* | 7/9 |
7/9 |
|
| Carex crus-corvi* | 6/22 |
6/22 |
|
| Carex cryptolepis* | 5/27 |
6/21 |
6/8 |
| Carex disperma* | 5/26 |
6/23 |
6/9 |
| Carex formosa* | 6/22 |
6/22 |
|
| Carex frankii* | 7/23 |
8/18 |
8/5 |
| Carex intumescens* | 5/11 |
6/6 |
5/24 |
| Carex leptalea* | 5/10 |
5/28 |
5/19 |
| Carex oligosperma* | 5/26 |
7/1 |
6/13 |
| Carex pedunculata* | 3/23 |
4/18 |
4/5 |
| Carex trisperma* | 5/17 |
5/24 |
5/20 |
| Carex tuckermanii* | 5/7 |
8/6 |
6/21 |
| Carex utriculata* | 5/20 |
6/25 |
6/7 |
| Carex viridula* | 5/4 |
9/28 |
7/16 |
| Carex woodii* | 4/12 |
5/8 |
4/25 |
| Cassia hebecarpa | 7/19 |
8/15 |
8/1 |
| Castilleja sessiliflora | 5/25 |
6/24 |
6/9 |
| Cercis canadensis | 4/19 |
5/27 |
5/8 |
| Chamaedaphne calyculata | 4/20 |
6/8 |
5/14 |
| Chamaesyce polygonifolia | 7/9 |
11/5 |
9/6 |
| Cicuta bulbifera | 7/25 |
8/31 |
8/12 |
| Cirsium hillii | 6/18 |
8/20 |
7/19 |
| Cladium mariscoides | 6/19 |
8/16 |
7/18 |
| Collinsia verna | 4/21 |
5/30 |
5/10 |
| Comptonia peregrina | 4/14 |
4/30 |
4/22 |
| Corallorhiza maculata | 7/21 |
9/15 |
8/18 |
| Cypripedium candidum | 4/23 |
6/2 |
5/13 |
| Cypripedium parviflorum var. makasin | 5/18 |
6/13 |
5/31 |
| Cypripedium reginae | 5/30 |
6/30 |
6/14 |
| Dalea foliosa | 7/28 |
8/27 |
8/12 |
| Delphinium tricorne | 4/26 |
5/28 |
5/12 |
| Desmodium canescens | 8/14 |
8/20 |
8/17 |
| Diarrhena americana | 7/24 |
7/26 |
7/25 |
| Dichanthelium boreale | 6/11 |
6/11 |
|
| Dirca palustris | 4/9 |
5/7 |
4/23 |
| Drosera intermedia | 7/10 |
9/15 |
8/12 |
| Drosera rotundifolia | 6/30 |
8/22 |
7/26 |
| Echinodorus cordifolius | |||
| Eleocharis rostellata | 5/12 |
6/14 |
5/28 |
| Elymus trachycaulus | 6/10 |
7/19 |
6/29 |
| Epigaea repens | 4/5 |
5/7 |
4/21 |
| Epilobium strictum | 7/20 |
9/3 |
8/11 |
| Erigeron pulchellus | 5/3 |
6/19 |
5/26 |
| Eriophorum angustifolium | 4/30 |
5/11 |
5/5 |
| Eriophorum virginicum | 7/14 |
8/11 |
7/28 |
| Erythronium americanum | 4/6 |
5/15 |
4/25 |
| Filipendula rubra | 7/11 |
7/17 |
7/14 |
| Galium labradoricum | 5/27 |
6/14 |
6/5 |
| Gentiana flavida | 8/10 |
10/4 |
9/6 |
| Gentianopsis crinita | 8/30 |
11/4 |
10/2 |
| Geranium bicknellii | 6/6 |
8/4 |
7/5 |
| Geum rivale | 5/22 |
5/22 |
|
| Geum triflorum | 4/30 |
6/9 |
5/20 |
| Goodyera pubescens | 7/29 |
8/19 |
8/8 |
| Gratiola quartermaniae | 6/14 |
6/14 |
|
| Helianthus giganteus | 7/20 |
9/12 |
8/16 |
| Hepatica americana | 3/13 |
5/10 |
4/11 |
| Hybanthus concolor | 4/24 |
5/28 |
5/11 |
| Hydrastis canadensis | 4/26 |
5/10 |
5/3 |
| Hydrocotyle ranunculoides | 10/2 |
10/7 |
10/4 |
| Hypericum adpressum | 6/21 |
9/5 |
7/29 |
| Hypericum kalmianum | 6/19 |
10/3 |
8/11 |
| Ilex verticillata | 6/15 |
6/30 |
6/22 |
| Iodanthus pinnatifidus | 5/30 |
7/6 |
6/17 |
| Isoetes butleri | |||
| Jeffersonia diphylla | 4/11 |
5/3 |
4/22 |
| Juglans cinerea | 4/25 |
5/8 |
5/1 |
| Juncus alpinoarticulatus | 6/23 |
9/2 |
7/28 |
| Juniperus communis | 4/25 |
6/2 |
5/14 |
| Larix laricina | 4/18 |
5/24 |
5/6 |
| Lathyrus ochroleucus | 5/17 |
6/15 |
5/31 |
| Lechea intermedia | 8/16 |
9/15 |
8/31 |
| Lespedeza leptostachya | |||
| Liatris scariosa var. nieuwlandii | 8/26 |
10/4 |
9/14 |
| Lonicera dioica | 5/3 |
6/27 |
5/30 |
| Lycopodium clavatum | 8/26 |
9/29 |
9/12 |
| Lycopodium complanatum var. flabelliforme | 8/26 |
10/14 |
9/19 |
| Malvastrum hispidum | |||
| Menyanthes trifoliata | 5/9 |
7/24 |
6/16 |
| Minuartia patula | 5/4 |
7/5 |
6/4 |
| Minuartia patula | 5/4 |
7/3 |
6/3 |
| Mitella diphylla | 4/12 |
6/21 |
5/17 |
| Napaea dioica | 6/29 |
7/21 |
7/10 |
| Oenothera perennis | 6/2 |
7/17 |
6/24 |
| Ophioglossum vulgatum | 7/7 |
7/7 |
|
| Orchis spectabilis | 5/5 |
6/4 |
5/20 |
| Oryzopsis racemosa | 8/7 |
8/13 |
8/10 |
| Panax quinquefolius | 6/18 |
7/22 |
7/5 |
| Parnassia glauca | 8/12 |
10/9 |
9/10 |
| Penstemon pallidus | 5/30 |
6/19 |
6/9 |
| Penstemon tubaeflorus | 7/6 |
7/20 |
7/13 |
| Physocarpus opulifolius | 5/27 |
6/21 |
6/8 |
| Plantago cordata | 4/19 |
5/15 |
5/2 |
| Platanthera clavellata | 7/10 |
8/26 |
8/2 |
| Platanthera flava var. herbiola | 6/16 |
7/21 |
7/3 |
| Platanthera hyperborea var. huronensis | 6/4 |
7/21 |
6/27 |
| Platanthera lacera | 6/21 |
8/7 |
7/14 |
| Platanthera psycodes | 7/6 |
8/7 |
7/22 |
| Poa sylvestris | 5/17 |
6/10 |
5/29 |
| Pogonia ophioglossoides | 6/8 |
7/8 |
6/23 |
| Polygonatum pubescens | 4/15 |
6/20 |
5/18 |
| Polystichum acrostichoides | |||
| Populus balsamifera | 5/31 |
5/31 |
|
| Potamogeton robbinsii | 7/5 |
7/5 |
|
| Prenanthes aspera | 8/2 |
10/3 |
9/2 |
| Psoralea tenuiflora | 5/30 |
7/27 |
6/28 |
| Pycnanthemum pilosum | 7/10 |
7/10 |
|
| Pyrola elliptica | 6/21 |
7/29 |
7/10 |
| Ranunculus rhomboideus | 4/30 |
5/14 |
5/7 |
| Rhus vernix | 6/8 |
6/23 |
6/15 |
| Rubus odoratus | 6/29 |
7/25 |
7/12 |
| Rubus pubescens | 4/15 |
6/21 |
5/18 |
| Rudbeckia fulgida var. sullivantii | 8/7 |
9/14 |
8/26 |
| Sagittaria calycina | 9/13 |
9/13 |
|
| Salix candida | 4/25 |
5/27 |
5/11 |
| Sarracenia purpurea | 5/21 |
6/8 |
5/30 |
| Scirpus hattorianus | 6/13 |
7/7 |
6/25 |
| Scirpus microcarpus | 6/8 |
6/29 |
6/18 |
| Shepherdia canadensis | 4/13 |
5/5 |
4/24 |
| Silene regia | 7/17 |
8/4 |
7/26 |
| Silene virginica | 5/19 |
7/24 |
6/21 |
| Sisyrinchium montanum | 5/26 |
6/11 |
6/3 |
| Sparganium emersum | 6/16 |
9/7 |
7/27 |
| Spiranthes lucida | 6/5 |
6/15 |
6/10 |
| Stellaria pubera | 5/10 |
5/17 |
5/13 |
| Symphoricarpos albus var. albus | 6/17 |
6/17 |
|
| Tetraneuris herbacea | 4/28 |
5/14 |
5/6 |
| Thuja occidentalis | 5/1 |
6/29 |
5/30 |
| Tofieldia glutinosa | 6/25 |
10/1 |
8/13 |
| Tomanthera auriculata | 8/9 |
9/13 |
8/26 |
| Trientalis borealis | 4/30 |
6/14 |
5/22 |
| Trifolium reflexum | 6/27 |
6/27 |
|
| Triglochin maritima | 5/25 |
9/25 |
7/25 |
| Triglochin palustris | 6/25 |
8/30 |
7/28 |
| Trillium cernuum | 5/10 |
5/25 |
5/17 |
| Trillium sessile | 4/13 |
5/14 |
4/28 |
| Utricularia cornuta | 6/2 |
10/21 |
8/11 |
| Utricularia intermedia | 5/27 |
9/10 |
7/19 |
| Utricularia minor | 6/15 |
8/8 |
7/12 |
| Vaccinium oxycoccos | 6/8 |
6/23 |
6/15 |
| Valeriana edulis var. ciliata | 4/25 |
6/10 |
5/18 |
| Valeriana uliginosa | 5/13 |
6/1 |
5/22 |
| Veronica scutellata | 5/23 |
9/23 |
7/23 |
| Viola blanda | 4/7 |
5/19 |
4/28 |
| Viola canadensis | 4/21 |
6/1 |
5/11 |
| Viola conspersa | 4/8 |
6/2 |
5/5 |
| Viola striata | 4/26 |
7/3 |
5/30 |
| Zizania aquatica | 7/20 |
9/24 |
8/22 |
Species Bloom Times - Sorted by Bloom Times
Middle Date |
Start Date |
End Date |
Species |
4/5 |
3/23 |
4/18 |
Carex pedunculata* |
4/11 |
3/13 |
5/10 |
Hepatica americana |
4/21 |
4/5 |
5/7 |
Epigaea repens |
4/22 |
4/14 |
4/30 |
Comptonia peregrina |
4/22 |
4/11 |
5/3 |
Jeffersonia diphylla |
4/23 |
4/9 |
5/7 |
Dirca palustris |
4/24 |
4/13 |
5/5 |
Shepherdia canadensis |
4/25 |
4/12 |
5/8 |
Carex woodii* |
4/25 |
4/6 |
5/15 |
Erythronium americanum |
4/28 |
4/16 |
5/10 |
Actaea rubra |
4/28 |
4/7 |
5/19 |
Viola blanda |
4/28 |
4/13 |
5/14 |
Trillium sessile |
4/29 |
4/11 |
5/17 |
Carex bromoides* |
5/1 |
4/25 |
5/8 |
Juglans cinerea |
5/2 |
4/20 |
5/14 |
Amelanchier interior |
5/2 |
4/10 |
5/24 |
Betula alleghaniensis |
5/2 |
4/19 |
5/15 |
Plantago cordata |
5/3 |
4/26 |
5/10 |
Hydrastis canadensis |
5/5 |
4/8 |
6/2 |
Viola conspersa |
5/5 |
4/30 |
5/11 |
Eriophorum angustifolium |
5/6 |
4/18 |
5/24 |
Larix laricina |
5/6 |
4/28 |
5/14 |
Tetraneuris herbacea |
5/7 |
4/30 |
5/14 |
Ranunculus rhomboideus |
5/8 |
5/4 |
5/12 |
Amelanchier sanguinea |
5/8 |
4/19 |
5/27 |
Cercis canadensis |
5/10 |
4/21 |
5/30 |
Collinsia verna |
5/11 |
4/24 |
5/28 |
Hybanthus concolor |
5/11 |
4/25 |
5/27 |
Salix candida |
5/11 |
4/21 |
6/1 |
Viola canadensis |
5/12 |
4/26 |
5/28 |
Delphinium tricorne |
5/13 |
4/27 |
5/29 |
Carex crawei* |
5/13 |
4/23 |
6/2 |
Cypripedium candidum |
5/13 |
5/10 |
5/17 |
Stellaria pubera |
5/14 |
5/12 |
5/16 |
Besseya bullii |
5/14 |
4/20 |
6/8 |
Chamaedaphne calyculata |
5/14 |
4/25 |
6/2 |
Juniperus communis |
5/17 |
4/12 |
6/21 |
Mitella diphylla |
5/17 |
5/10 |
5/25 |
Trillium cernuum |
5/18 |
4/15 |
6/20 |
Polygonatum pubescens |
5/18 |
4/15 |
6/21 |
Rubus pubescens |
5/18 |
4/25 |
6/10 |
Valeriana edulis var. ciliata |
5/19 |
5/10 |
5/28 |
Carex leptalea* |
5/20 |
5/17 |
5/24 |
Carex trisperma* |
5/20 |
4/30 |
6/9 |
Geum triflorum |
5/20 |
5/5 |
6/4 |
Orchis spectabilis |
5/22 |
5/22 |
Geum rivale | |
5/22 |
4/30 |
6/14 |
Trientalis borealis |
5/22 |
5/13 |
6/1 |
Valeriana uliginosa |
5/24 |
5/11 |
6/6 |
Carex intumescens* |
5/24 |
5/4 |
6/14 |
Baptisia leucophaea |
5/25 |
5/24 |
5/26 |
Carex aurea* |
5/26 |
5/3 |
6/19 |
Erigeron pulchellus |
5/28 |
5/12 |
6/14 |
Eleocharis rostellata |
5/28 |
5/23 |
6/3 |
Botrychium matricariifolium |
5/29 |
5/17 |
6/10 |
Poa sylvestris |
5/30 |
5/21 |
6/8 |
Sarracenia purpurea |
5/30 |
4/26 |
7/3 |
Viola striata |
5/30 |
5/3 |
6/27 |
Lonicera dioica |
5/30 |
5/1 |
6/29 |
Thuja occidentalis |
5/31 |
5/18 |
6/13 |
Cypripedium parviflorum var. makasin |
5/31 |
5/17 |
6/15 |
Lathyrus ochroleucus |
5/31 |
5/31 |
Populus balsamifera | |
6/3 |
5/12 |
6/25 |
Arabis hirsuta |
6/3 |
5/30 |
6/8 |
Carex alata* |
6/3 |
5/4 |
7/3 |
Minuartia patula |
6/3 |
5/26 |
6/11 |
Sisyrinchium montanum |
6/4 |
6/1 |
6/8 |
Carex brunnescens* |
6/4 |
5/4 |
7/5 |
Minuartia patula |
6/5 |
5/27 |
6/14 |
Galium labradoricum |
6/7 |
5/20 |
6/25 |
Carex utriculata* |
6/8 |
5/22 |
6/25 |
Asclepias ovalifolia |
6/8 |
5/27 |
6/21 |
Carex cryptolepis* |
6/8 |
5/27 |
6/21 |
Physocarpus opulifolius |
6/9 |
5/26 |
6/23 |
Carex disperma* |
6/9 |
5/25 |
6/24 |
Castilleja sessiliflora |
6/9 |
5/30 |
6/19 |
Penstemon pallidus |
6/10 |
6/5 |
6/15 |
Spiranthes lucida |
6/11 |
6/11 |
Dichanthelium boreale | |
6/12 |
5/30 |
6/25 |
Asclepias lanuginosa |
6/13 |
5/26 |
7/1 |
Carex oligosperma* |
6/14 |
5/30 |
6/30 |
Cypripedium reginae |
6/14 |
6/14 |
Gratiola quartermaniae | |
6/15 |
6/8 |
6/23 |
Vaccinium oxycoccos |
6/15 |
6/8 |
6/23 |
Rhus vernix |
6/16 |
5/9 |
7/24 |
Menyanthes trifoliata |
6/16 |
5/27 |
7/7 |
Aristolochia serpentaria |
6/17 |
6/17 |
Symphoricarpos albus var. albus | |
6/17 |
5/30 |
7/6 |
Iodanthus pinnatifidus |
6/18 |
6/8 |
6/29 |
Scirpus microcarpus |
6/20 |
5/30 |
7/12 |
Asclepias exaltata |
6/21 |
5/19 |
7/24 |
Silene virginica |
6/21 |
5/7 |
8/6 |
Carex tuckermanii* |
6/22 |
6/22 |
Carex crus-corvi* | |
6/22 |
6/22 |
Carex formosa* | |
6/22 |
6/15 |
6/30 |
Ilex verticillata |
6/23 |
6/8 |
7/8 |
Pogonia ophioglossoides |
6/24 |
6/2 |
7/17 |
Oenothera perennis |
6/25 |
6/13 |
7/7 |
Scirpus hattorianus |
6/27 |
6/27 |
Trifolium reflexum | |
6/27 |
6/4 |
7/21 |
Platanthera hyperborea var. huronensis |
6/28 |
5/30 |
7/27 |
Psoralea tenuiflora |
6/29 |
6/10 |
7/19 |
Elymus trachycaulus |
7/3 |
6/16 |
7/21 |
Platanthera flava var. herbiola |
7/4 |
5/11 |
8/28 |
Callitriche heterophylla |
7/5 |
6/6 |
8/4 |
Geranium bicknellii |
7/5 |
6/18 |
7/22 |
Panax quinquefolius |
7/5 |
7/5 |
Potamogeton robbinsii | |
7/7 |
7/7 |
Ophioglossum vulgatum | |
7/8 |
6/6 |
8/9 |
Calopogon tuberosus |
7/9 |
7/9 |
Carex crawfordii* | |
7/10 |
6/25 |
7/25 |
Beckmannia syzigachne |
7/10 |
6/29 |
7/21 |
Napaea dioica |
7/10 |
7/10 |
Pycnanthemum pilosum | |
7/10 |
6/21 |
7/29 |
Pyrola elliptica |
7/11 |
6/17 |
8/4 |
Asclepias viridiflora |
7/12 |
6/29 |
7/25 |
Rubus odoratus |
7/12 |
6/15 |
8/8 |
Utricularia minor |
7/13 |
7/6 |
7/20 |
Penstemon tubaeflorus |
7/14 |
7/11 |
7/17 |
Filipendula rubra |
7/14 |
6/21 |
8/7 |
Platanthera lacera |
7/16 |
7/7 |
7/25 |
Adiantum pedatum |
7/16 |
5/4 |
9/28 |
Carex viridula* |
7/18 |
6/19 |
8/16 |
Cladium mariscoides |
7/19 |
5/27 |
9/10 |
Utricularia intermedia |
7/19 |
6/18 |
8/20 |
Cirsium hillii |
7/22 |
7/6 |
8/7 |
Platanthera psycodes |
7/22 |
5/3 |
10/11 |
Betula populifolia |
7/23 |
5/23 |
9/23 |
Veronica scutellata |
7/25 |
7/24 |
7/26 |
Diarrhena americana |
7/25 |
5/25 |
9/25 |
Triglochin maritima |
7/26 |
6/30 |
8/22 |
Drosera rotundifolia |
7/26 |
7/17 |
8/4 |
Silene regia |
7/27 |
6/16 |
9/7 |
Sparganium emersum |
7/28 |
7/14 |
8/11 |
Eriophorum virginicum |
7/28 |
6/25 |
8/30 |
Triglochin palustris |
7/28 |
5/25 |
10/1 |
Callitriche palustris |
7/28 |
6/23 |
9/2 |
Juncus alpinoarticulatus |
7/29 |
6/21 |
9/5 |
Hypericum adpressum |
8/1 |
8/1 |
Bolboschoenus maritimus | |
8/1 |
7/19 |
8/15 |
Cassia hebecarpa |
8/2 |
7/10 |
8/26 |
Platanthera clavellata |
8/4 |
7/10 |
8/30 |
Aralia racemosa |
8/4 |
6/8 |
9/30 |
Cakile edentula |
8/5 |
7/23 |
8/18 |
Carex frankii* |
8/8 |
7/4 |
9/12 |
Ammophila breviligulata |
8/8 |
7/29 |
8/19 |
Goodyera pubescens |
8/10 |
8/7 |
8/13 |
Oryzopsis racemosa |
8/11 |
7/20 |
9/3 |
Epilobium strictum |
8/11 |
6/19 |
10/3 |
Hypericum kalmianum |
8/11 |
6/2 |
10/21 |
Utricularia cornuta |
8/12 |
7/28 |
8/27 |
Dalea foliosa |
8/12 |
7/10 |
9/15 |
Drosera intermedia |
8/12 |
7/25 |
8/31 |
Cicuta bulbifera |
8/13 |
6/25 |
10/1 |
Tofieldia glutinosa |
8/16 |
7/20 |
9/12 |
Helianthus giganteus |
8/17 |
8/14 |
8/20 |
Desmodium canescens |
8/18 |
7/21 |
9/15 |
Corallorhiza maculata |
8/22 |
7/20 |
9/24 |
Zizania aquatica |
8/23 |
8/3 |
9/12 |
Aster furcatus |
8/26 |
8/7 |
9/14 |
Rudbeckia fulgida var. sullivantii |
8/26 |
8/9 |
9/13 |
Tomanthera auriculata |
8/31 |
8/16 |
9/15 |
Lechea intermedia |
9/2 |
8/2 |
10/3 |
Prenanthes aspera |
9/4 |
8/24 |
9/15 |
Artemisia serrata |
9/6 |
8/17 |
9/27 |
Agalinis skinneriana |
9/6 |
7/9 |
11/5 |
Chamaesyce polygonifolia |
9/6 |
8/10 |
10/4 |
Gentiana flavida |
9/9 |
9/2 |
9/16 |
Bidens discoidea |
9/10 |
8/12 |
10/9 |
Parnassia glauca |
9/12 |
8/26 |
9/29 |
Lycopodium clavatum |
9/13 |
9/13 |
Sagittaria calycina | |
9/14 |
8/26 |
10/4 |
Liatris scariosa var. nieuwlandii |
9/19 |
8/26 |
10/14 |
Lycopodium complanatum var. flabelliforme |
10/2 |
8/30 |
11/4 |
Gentianopsis crinita |
10/4 |
10/2 |
10/7 |
Hydrocotyle ranunculoides |
| Asclepias meadii | |||
| Asclepias perennis | |||
| Echinodorus cordifolius | |||
| Isoetes butleri | |||
| Lespedeza leptostachya | |||
| Malvastrum hispidum | |||
| Polystichum acrostichoides |
*Carex species are best monitored later when fruiting.
All dates based on F. Swink and G. Wilhelm's Plants of the Chicago Region, which compiles records throughout the entire Chicago Region.
