| Vulpia octoflora (Walter) Rydb. var. glauca (Nutt.) Fernald | G | A | 11 | 0.02 | - | - | - | - |
| Tetraneuris acaulis (Pursh) Greene var. acaulis | F | A | 11 | 0.12 | - | - | - | - |
| Opuntia fragilis (Nutt.) Haw | F | P | 11 | 0.04 | 5 | 0.00 | - | - |
| Allium textile A. Nelson & J. F. Macbr. | F | P | 10 | 0.01 | 7 | 0.01 | - | - |
| Descurainia pinnata (Walter) Britton | F | A | 10 | 0.08 | 10 | 0.13 | 3 | 0.06 |
| Eriogonum flavum Nutt. | F | A | 10 | 0.01 | 7 | 0.01 | - | - |
| Liatris punctata Hook. | F | P | 10 | 0.05 | 2 | 0.00 | - | - |
| Artemisia dracunculus L. | F | P | 8 | 0.20 | 5 | 0.15 | - | - |
| Bouteloua dactyloides (Nutt.) J.T. Columbus | G | P | 8 | 0.54 | 12 | 0.50 | 3 | 0.24 |
| Echinacea angustifolia DC. | F | P | 8 | 0.03 | 5 | 0.12 | - | - |
| Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus | F | A | 8 | 0.76 | - | - | - | - |
| Plantago patagonica Jacq. | F | A | 8 | 0.01 | 14 | 0.05 | 9 | 0.01 |
| Thlaspi arvense L.* | F | A | 7 | 0.01 | 2 | 0.00 | - | - |
| Dalea purpurea Vent. | F | P | 6 | 0.02 | - | - | - | - |
| Erysimum asperum (Nutt.) DC. | F | B | 6 | 0.02 | 2 | 0.00 | - | - |
| Koeleria macrantha (Ledeb.) Schult. | G | P | 6 | 0.01 | 2 | 0.00 | 3 | 0.00 |
| Tragopogon dubius Scop.* | F | B | 6 | 0.06 | 21 | 0.04 | - | - |
| Antennaria sp. | F | P | 3 | 0.00 | - | - | - | - |
| Astragalus crassicarpus Nutt. | F | P | 3 | 0.00 | - | - | - | - |
| Rosa woodsii Lindl. | S | P | 3 | 0.28 | 10 | 0.10 | - | - |
| Viola nuttallii Pursh | F | P | 3 | 0.01 | 2 | 0.00 | - | - |
| Heterotheca pumila (Greene) Semple | F | P | 1 | 0.01 | - | - | - | - |
| Convolvulus arvensis L.* | F | P | 1 | 0.00 | 5 | 0.00 | 6 | 0.01 |
| Escobaria missouriensis (Sweet) D.R. Hunt | F | P | 1 | 0.00 | - | - | - | - |
| Distichlis spicata Greene | G | P | 1 | 0.00 | 12 | 0.43 | 9 | 0.62 |
| Polygala alba Nutt. | F | P | 1 | 0.00 | - | - | - | - |
| Potentilla pensylvanica L. | F | P | 1 | 0.00 | 2 | 0.02 | - | - |
| Solidago sp. | F | P | 1 | 0.83 | 2 | 0.05 | 3 | 0.00 |
| Grindelia squarrosa (Pursh) Dunal | F | P | - | - | 5 | 0.00 | - | - |
| Pediomelum esculentum (Pursh) Rydb. | F | P | - | - | 5 | 0.00 | - | - |
| Hordeum jubatum L. | G | P | - | - | 2 | 0.00 | 3 | 0.00 |
| Agoseris glauca (Pursh) Raf. | F | P | - | - | 2 | 0.00 | - | - |
| Bromus inermis Leyss.* | G | P | - | - | 2 | 0.00 | - | - |
| Lithospermum incisum Lehm | F | P | - | - | 2 | 0.00 | - | - |
| Mertensia lanceolate (Pursh) DC. | F | P | - | - | 2 | 0.00 | - | - |
| Mirabilis laevis (Benth.) Curran var. villosa (Kellogg) Spellenb. | F | P | - | - | 2 | 0.00 | - | - |
| Salsola iberica L.* | F | A | - | - | 2 | 0.00 | - | - |