Robert W. Freckmann Herbarium

 Prairie Seeds Collecting Dates (May - September)

compiled by Wayne Pauly and Amanda Coyle - August 1977 for Dane County Highway & Transportation Dept.


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May  - July

August

September

Plants are listed under the earliest date that seeds were ripe and collected in Dane County, using eight years of data.
Habitat code: D = dry; M = mesic; W = wet

Wet prairie -has more water than rainfall with water running on from surrounding land. Al flat and poorly drained area.
Mesic prairie -the water soaks in and there is no standing water. It has good internal drainage.
Dry prairie -it has less water than rainfall because the water runs off, often on thin soil, limestone ridges, or steep hillsides.



Aug. 1-15

MW Anemone canadensis L. anemone, Canada
D Penstemon grandiflorus Nutt. beard-tongue, large flowered
MW Galium boreale L. bedstraw, northern
DMW Rudbeckia hirta L. var. pulcherrima Farw. black-eyed Susan
DMW Ratibida pinnata (Vent.) Barnhart coneflower, yellow
MW Zizia aptera (A.Gray) Fernald golden Alexander/ meadow parsnip
D Hieracium longipilum Torr. ex Hook. hawkweed, long-haired
MW Cicuta maculata L. hemlock, water
DM Amorpha canescens Pursh lead-plant
MW Thalictrum dasycarpum Fisch. & Avé-Lall. meadow-rue, purple
M Heliopsis helianthoides (L.) Sweet oxeye, yellow/ early sunflower
D Opuntia humifusa (Raf.) Raf. var. humifusa prickly pear cactus
D Lithospermum caroliniense (Walter ex J.F.Gmel.) MacMill. subsp. croceum (Fernald) Cusick puccoon
DM Lithospermum canescens (Michx.) Lehm. puccoon, hoary
DM Desmodium illinoense A.Gray tick trefoil, Illinois
DMW Lathyrus venosus Muhl. ex Willd. vetchling/ veiny pea
MW Achillea millefolium L. yarrow

 
 Aug 16-30

DMW Monarda fistulosa L. subsp. fistulosa bergamot, wild/ beebalm
DM Potentilla arguta Pursh subsp. arguta cinquefoil, tall
MW Spartina pectinata Link cord grass
DM Sporobolus heterolepis (A.Gray) A.Gray dropseed, prairie
D Bouteloua hirsuta Lag. subsp. hirsuta grama grass, hairy/ mustache grass
DMW Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely indigo, white wild
DM Schizachyrium scoparium (Michx.) Nash little bluestem grass
M Allium cernuum Roth onion, nodding wild
DM Dalea purpurea Vent. var. purpurea prairie clover, purple
DM Dalea candida Michx. ex Willd. prairie clover, white
DM Oenothera biennis L. primrose, evening
DM Parthenium integrifolium L. quinine, wild
DM Polygonatum biflorum (Walter) Elliott solomn's seal, great
DMW Panicum virgatum L. switchgrass
DM Anemone virginiana L. thimbleweed

Sept. 1-15
W Eupatorium perfoliatum L. var. perfoliatum boneset
DM Kuhnia eupatorioides L. var. corymbulosa Torr. & A.Gray boneset, false
DM Lespedeza capitata Michx. bush clover, roundheaded
DM Silphium laciniatum L. var. laciniatum compass-plant
DM Echinacea pallida (Nutt.) Nutt. coneflower, pale-purple
MW Silphium perfoliatum L. var. perfoliatum cup-plant
MW Liatris pycnostachya Michx. gayfeather, prairie
DM Tephrosia virginiana (L.) Pers. goatsrue
D Agastache foeniculum (Pursh) Kuntze hyssop, blue giant
DM Baptisia bracteata Muhl. ex Elliott var. glabrescens (Larisey) Isely indigo, creamy wild
W Eupatorium maculatum L. joe-pye weed
M Lactuca canadensis L. lettuce, wild
W Napaea dioica L. mallow, glade
DMW Asclepias syriaca L. milkweed, common
DMW Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks. ex B.L.Rob. & Fernald mountain mint
DM Ceanothus americanus L. New Jersey tea
DM Polytaenia nuttallii DC. parsley, prairie
D Chamaecrista fasciculata (Michx.) Greene partridge pea
M Penstemon digitalis Nutt. ex Sims penstemon, smooth/ beard-tongue
DMW Silphium integrifolium Michx. rosin-weed
D Bouteloua curtipendula (Michx.) Torr. var. curtipendula side oats grama
M Helianthus strumosus L. sunflower, woodland
DM Elymus canadensis L. wild rye, Canada

Sept. 16-31
DM Solidago ptarmicoides (Nees) B.Boivin goldenrod, upland white
DMW Andropogon gerardii Vitman. big bluestem
D Liatris cylindracea Michx. blazing star, cylindric
DM Liatris aspera Michx. blazing star, rough
DM Asclepias tuberosa L. subsp. interior Woodson butterfly-weed
DM Coreopsis palmata Nutt. coreopsis/tickseed
MW Veronicastrum virginicum (L.) Farw. culver's root
MW Gentiana andrewsii Griseb. var. andrewsii gentian, bottle
DM Physalis virginiana Mill. var. virginiana ground cherry, lance-leaved
DM Apocynum cannabinum L. hemp, Indian
MW Amphicarpaea bracteata (L.) Fernald hog peanut
D Monarda punctata L. var. villicaulis (Pennell) E.J.Palmer & Steyerm. horse mint
DM Sorghastrum nutans (L.) Nash Indian grass
MW Arnoglossum atriplicifolium (L.) H.Rob. Indian-plantain, pale
MW Vernonia fasciculata Michx. subsp. fasciculata ironweed, Western
W Lobelia siphilitica L. lobelia, great blue
W Asclepias incarnata L. subsp. incarnata milkweed, swamp
M Phlox glaberrima L. subsp. interior (Wherry) Wherry phlox, smooth
MW Silphium terebinthinaceum Jacq. var. terebinthinaceum prairie-dock
D Oenothera rhombipetala Nutt. ex Torr. & A.Gray primrose, sand
DM Eryngium yuccifolium Michx. rattlesnake-master
DM Rosa carolina L. rose, prairie
DMW Carex bicknellii Britton var. bicknellii sedge
MW Helianthus grosseserratus M.Martens sunflower, big-toothed
DM Helianthus occidentalis Riddell subsp. occidentalis sunflower, naked-stem
DM Anemone cylindrica A.Gray thimbleweed, long-headed
DM Cirsium discolor (Muhl. ex Willd.) Spreng. thistle, old-field
MW Desmodium canadense (L.) DC. tick trefoil, Canada
W Lilium michiganense Farw. turk's-cap lily


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