| Scientific Name | Life Formb | Life Spanc | Class Ia (n = 72) | Class II (n = 42) | Class III (n = 34) | |||
| Frequencyd (%) | Covere (%) | Frequency (%) | Cover (%) | Frequency (%) | Cover (%) | |||
Medicago sativa ssp. falcata (L). Arcang. * | F | P | 0.00 | 0.00 | 100 | 14.39 | 100 | 78.15 |
| Carex filifolia Nutt. | G | P | 81 | 24.59 | 55 | 5.55 | 12 | 0.15 |
| Hesperostipa spp.f | G | P | 78 | 2.99 | 60 | 0.99 | 24 | 0.08 |
| Pascopyrum smithii (Rydb.) Á. Löve | G | P | 71 | 8.30 | 81 | 5.74 | 56 | 2.99 |
| Taraxacum officinale F.H. Wigg * | F | P | 68 | 0.62 | 38 | 0.17 | 24 | 0.08 |
| Chenopodium rubrum L. | F | A | 61 | 0.34 | 76 | 0.26 | 44 | 0.21 |
| Melilotus officinalis (L.) Lam.* | F | B/P | 51 | 1.57 | 67 | 2.55 | 44 | 1.64 |
| Collomia linearis Nutt. | F | A | 50 | 2.42 | 36 | 0.69 | 12 | 0.07 |
| Camelina microcarpa Andrz. ex. DC.* | F | A | 44 | 0.10 | 76 | 0.25 | 47 | 0.11 |
| Lactuca tatarica (L.) C.A. Mey. Var. pulchella (Pursh) Breitung | F | A | 43 | 0.23 | 21 | 0.33 | 6 | 0.01 |
| Plantago elongate Pursh | F | A | 39 | 0.05 | 17 | 0.06 | 12 | 0.01 |
| Vicia Americana Muhl. ex Willd. | F | P | 38 | 0.26 | 47 | 0.16 | 35 | 0.37 |
| Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths | G | P | 33 | 0.99 | 29 | 0.52 | 9 | 0.02 |
| Agropyron cristatum (L.) Gaertn.* | G | P | 29 | 5.06 | 62 | 10.41 | 53 | 3.43 |
| Lappula occidentalis (S. Watson) Greene) | F | A | 29 | 0.03 | 14 | 0.01 | 9 | 0.01 |
| Poa pratensis L.* | G | P | 25 | 1.23 | 24 | 1.20 | 62 | 3.63 |
| Pediomelum argophyllum (Pursh) J. Grimes | F | P | 25 | 0.04 | 14 | 0.06 | 3 | 0.00 |
| Sphaeralcea coccinea (Nutt.) Rydb. | F | P | 25 | 0.51 | 26 | 0.33 | 9 | 0.01 |
| Oenothera suffrutescens (Ser.) W.L. Wagner & Hoch | F | P | 22 | 0.03 | 14 | 0.01 | - | - |
| Achillea millefolium L. | F | P | 21 | 0.90 | 52 | 0.91 | 59 | 1.01 |
Lygodesmia juncea (Pursh) D. Don ex Hook. | F | P | 21 | 0.06 | 5 | 0.00 | - | - |
| Cirsium undulatum (Nutt.) Spreng. | F | P | 19 | 0.14 | 5 | 0.00g | 3 | 0.06 |
| Calamovilfa longifolia (Hook.) Scribn. | G | P | 18 | 0.40 | 5 | 0.17 | - | - |
| Oxytropis lambertii Pursh | F | P | 15 | 0.33 | 5 | 0.03 | - | - |
| Phlox hoodia Richardson | F | P | 14 | 0.05 | 10 | 0.13 | 3 | 0.00 |
| Artemisia frigida Willd. | F | P | 13 | 0.32 | 19 | 0.24 | 3 | 0.00 |
| Artemisia ludoviciana Nutt. | F | P | 13 | 1.27 | 2 | 0.24 | 6 | 0.03 |
| Hedeoma hispida Pursh | F | P | 13 | 0.01 | 10 | 0.01 | - | - |
| Penstemon spp. | F | P | 13 | 0.02 | 12 | 0.03 | - | - |
| Bromus arvensis L.* | G | A | 11 | 0.06 | 26 | 0.05 | 6 | 0.01 |
| Ellisia nyctelea (L.) L. | F | A | 11 | 0.08 | 2 | 0.00 | - | - |