NR 27.03(3)(i)1.1. Aconitum novaboracense — Northern Monkshood (Ranunculaceae: Crowfoot Family) (also U.S. Threatened).
NR 27.03(3)(i)2.
2. Adoxa moschatellina — Muskroot (Adoxaceae: Moschatel Family).
NR 27.03(3)(i)3a.
3a. Agalinis gattingeri — Roundstem Foxglove (Scrophulariaceae: Fig Wort Family.
NR 27.03(3)(i)3m.
3m. Amerorchis rotundifolia — Round-leaved Orchis (Orchidaceae: Orchid Family).
NR 27.03(3)(i)4m.
4m. Asclepias ovalifolia — Dwarf Milkweed (Asclepiadaceae: Milkweed Family).
NR 27.03(3)(i)5.
5. Asclepias lanuginosa — Wooly Milkweed (Asclepiadaceae: Milkweed Family).
NR 27.03(3)(i)6.
6. Asclepias sullivantii — Prairie Milkweed (Asclepiadaceae: Milkweed Family).
NR 27.03(3)(i)7.
7. Asplenium pinnatifidum — Pinnatifid Spleenwort (Aspleniaceae: Spleenwort Family).
NR 27.03(3)(i)9.
9. Besseya bullii — Kitten Tails (Scrophulariaceae: Fig Wort Family).
NR 27.03(3)(i)11.
11. Calamovilfa longifolia var.
magna — Sand Reedgrass (Poaceae: Grass Family).
NR 27.03(3)(i)11m.
11m. Callitriche heterophylla — Large Water Starwort (Callitichaceae: Water Starwort Family).
NR 27.03(3)(i)18.
18. Carex lenticularis — Lenticular Sedge (Cyperaceae: Sedge Family).
NR 27.03(3)(i)22.
22. Cirsium pitcheri — Dune Thistle (Asteraceae: Composite Family).
NR 27.03(3)(i)23.
23. Cypripedium arietinum — Ram's-head Lady's-slipper (Orchidaceae: Orchid Family).
NR 27.03(3)(i)24.
24. Cypripedium candidum — White Lady's-slipper (Orchidaceae: Orchid Family).
NR 27.03(3)(i)26.
26. Drosera linearis — Linear-leaved Sundew (Droseraceae: Sundew Family).
NR 27.03(3)(i)27.
27. Echinacea pallida — Purple Coneflower (Asteraceae: Composite Family).
NR 27.03(3)(i)28.
28. Eleocharis rostellata — Beaked Spike-rush (Cyperaceae: Sedge Family).
NR 27.03(3)(i)28m.
28m. Elytrigia dasystachya ssp.
psammophila — Thickspike Wheatgrass (Poaceae: Grass Family).
NR 27.03(3)(i)34.
34. Hypericum sphaerocarpum — Round-fruited St. John's Wort (Hypericaceae: St. John's Wort Family)
NR 27.03(3)(i)36.
36. Lespedeza virginica — Slender Bush Clover (Fabaceae: Bean Family).
NR 27.03(3)(i)37.
37. Lesquerella ludoviciana — Bladderpod (Brassicaceae: Mustard Family).
NR 27.03(3)(i)38.
38. Listera convallarioides — Broad-leaved Twayblade (Orchidaceae: Orchid Family).
NR 27.03(3)(i)39.
39. Opuntia fragilis — Brittle Prickly Pear (Cactaceae: Cactus Family).
NR 27.03(3)(i)41.
41. Orobanche fasciculata — Clustered Broomrape (Orobanchaceae: Broomrape Family).
NR 27.03(3)(i)42.
42. Parnassia palustris — Marsh Grass-of-Parnassus (Saxifragaceae: Saxifrage Family).
NR 27.03(3)(i)44.
44. Petasites sagittatus — Sweet Colt's-foot (Asteraceae: Composite Family).
NR 27.03(3)(i)45a.
45a. Platanthera flava var.
herbiola — Pale Green Orchid (Orchidaceae:Orchid Family).
NR 27.03(3)(i)46.
46. Polystichum braunii — Braun's Holly Fern (Dryopteridaceae: Wood Fern Family).
NR 27.03(3)(i)47.
47. Potamogeton confervoides — Algae-leaved Pondweed (Potamogetonaceae: Pondweed Family).
NR 27.03(3)(i)49.
49. Polytaenia nuttallii — Prairie-parsley (Apiaceae: Parsley Family).
NR 27.03(3)(i)49m.
49m. Pseudognaphalium saxicola — Cliff Cudweed (Asteraceae: Aster Family).